OsterleyPark,Hounslow    ArchaeologicalDeskͲBasedAssessment                

May 2020 Client: NationalTrust   Issue No:1 OAReferenceNo:7465 National©OxfordTrustArchaeologyEventLtdNumber:ENA9520 13May2020 NGR: 514500,177980    OsterleyPark,Hounslow1

ClientName: NationalTrust ClientRefNo:. DocumentTitle: OsterleyPark,Hounslow DocumentType: ArchaeologicalDeskͲBasedAssessment ReportNo.: 1 GridReference: 514500,177980  SiteCode: 7465 InvoiceCode: OSTPKCO  OADocumentFileLocation: X:\l\London_ Hounslow_ Osterley_ Park\002 Reports\3 As sent_DATE OAGraphicsFileLocation: X:\l\London_ Hounslow_ Osterley_ Park\002 Reports\3 As sent_DATE  IssueNo: 1 Date: 13May2020 Preparedby: CharlotteMalone(SeniorProjectManager) Checkedby: IantoWain(HeadofHeritageManagementServices) Editedby: IantoWain(HeadofHeritageManagementServices) ApprovedforIssueby: KenWelsh(RegionalManager,OASouth) Signature:    ……………………………………………………………..   Disclaimer: Thisdocumenthasbeenpreparedforthetitledprojectornamedpartthereofandshouldnotberelieduponorusedforanyotherproject withoutanindependentcheckbeingcarriedoutastoitssuitabilityandpriorwrittenauthorityofOxfordArchaeologybeingobtained.Oxford Archaeologyacceptsnoresponsibilityorliabilityfortheconsequencesofthisdocumentbeingusedforapurposeotherthanthepurposesfor whichitwascommissioned.Anyperson/partyusingorrelyingonthedocumentforsuchotherpurposesagreesandwillbysuchuseorreliance betakentoconfirmtheiragreementtoindemnifyOxfordArchaeologyforalllossordamageresultingtherefrom.OxfordArchaeologyaccepts noresponsibilityorliabilityforthisdocumenttoanypartyotherthantheperson/partybywhomitwascommissioned.     OASouth OAEast OANorth JanusHouse 15TrafalgarWay Mill3 OsneyMead BarHill MoorLaneMills Oxford Cambridge MoorLane OX20ES CB238SQ Lancaster LA11QD t.+44(0)1865263800 t.+44(0)1223850500 t.+44(0)1524880250  e.[email protected] w.oxfordarchaeology.com OxfordArchaeologyisaregisteredCharity:No.285627 

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OsterleyPark,Hounslow

ArchaeologicalDeskͲBasedAssessment



Contents

Summary...... 1 1 INTRODUCTION...... 2 2 AIMSANDOBJECTIVES...... 2 3 LOCATION,TOPOGRAPHYANDGEOLOGY...... 2 4 METHODOLOGY...... 3 4.1 ScopeandSourcesConsulted...... 3 4.2 AssumptionsandLimitations...... 3 5 PLANNINGBACKGROUND...... 4 5.1 NationalPlanningPolicy...... 4 5.2 LocalPlanningPolicy...... 5 6 WALKOVERSURVEY...... 7 7 HISTORICANDARCHAEOLOGICALBASELINE...... 10 7.1 Introduction...... 10 7.2 DesignatedHeritageAssets...... 10 7.3 PreviousArchaeologicalInvestigations...... 11 7.4 PrehistoricPeriod(500,000BP–AD43)...... 15 7.5 RomanoͲBritishPeriod(AD43–410)...... 15 7.6 TheMedievalPeriod(AD410–1550)...... 15 7.7 PostͲMedievalPeriod(1550Ͳ1900)...... 17 7.8 Modern...... 18 7.9 Undated...... 19 7.10 NationalTrustArchaeologicalSurvey...... 19 7.11 LiDAR...... 21 7.12 DroneMountedPhotoSurveyandSatelliteImagery...... 22 7.13 MapRegression...... 23 8 PREVIOUSIMPACTSANDSURVIVAL...... 27 9 ARCHAEOLOGICALPOTENTIALANDSIGNIFICANCE...... 28 9.1 Introduction...... 28 9.2 PrehistoricandRomanPeriods...... 29 9.3 MedievalPeriod...... 29

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9.4 PostͲmedievalandModernPeriod...... 30 10 RECOMMENDATIONS...... 31 10.1 ManagementRecommendations...... 31 10.2 OpportunitiesforFurtherResearch,FieldworkandEnhancement...... 33 11 CONCLUSION...... 34 APPENDIXA GAZETTEEROFKNOWNHERITAGEASSETSWITHINTHESTUDYAREA....37 Abbreviations...... 37 APPENDIXB BIBLIOGRAPHYANDLISTOFSOURCESCONSULTED...... 101 

©OxfordArchaeologyLtd v 13May2020    OsterleyPark,Hounslow1 ListofFigures Figure1 Sitelocation Figure2 Designatedheritageassets Figure3 GreaterLondonHistoricEnvironmentRecord(GLHER)archaeological investigationdata Figure4 GreaterLondonHistoricEnvironmentRecord(GLHER)data Figure5 NationalTrustHistoricEnvironmentRecord(NTHER)data Figure6 LiDARmultihillshadevisualisation Figure7aͲd NationalTrustArchaeologicalSurveyandLiDARearthworkinterpretationplot Figure8aͲb Cropmark/parchmarkplot Figure9 MosesGlover'sPlanofIsleworth1635 Figure10 Rocque'sSurveyofLondon1741Ͳ45 Figure11 OrdnanceSurveyDrawing1807 Figure12 HestonEnclosureMap1818 Figure13 Greenwood'sMapofMiddlesex1818Ͳ19 Figure14 ExtractfromPlanofOsterleyParkaccompanyingofferofalease1832 Figure15 FirstEditionOrdnanceSurvey(CountySeries25in)1865 Figure16 Estatemapc.1875 Figure17 SecondEditionOrdnanceSurvey(CountySeries25in)1894Ͳ6  ListofPlates Plate1 Earthworkremainsofa17thcenturygardenenclosure(OA25),viewlooking north Plate2 A16thcenturyfieldboundarybank(OA38),viewlookingsouthͲeast Plate3 Bank(OA83)markingtheboundarybetweenIndianClumpandHospital Field,viewlookingsouthͲwest Plate4 ConcretepostandmetalworkfromtheSecondWorldWarhospitalfence(OA 83) Plate5 ConcretepostfromtheSecondWorldWarhospitalfence(OA83) Plate6 Ditchassociatedwithamodernservicetrench(OA177),viewlookingwest Plate7 A16thcenturyfieldboundary(OA38)crossingtheMainDrive,viewlooking south Plate8 A16thcenturyfieldboundary(OA38)crossingtheMainDrive,viewlooking north Plate9 Alargeditch(OA55)possiblymarkingtheoriginalcourseofOsterleyLane, viewlookingsouthͲwest Plate10 Alinearditch(OA62)correspondingwithafieldboundaryshownon Rocque’s1741map,viewlookingsouthͲwest Plate11 Brickfootingofabuilding(OA87)associatedwiththePrisonerofWarcamp, viewlookingwest Plate12 Concretebaseofabuilding(OA89)associatedwiththePrisonerofWar camp,viewlookingnorthͲwest Plate13 Gatepostsandgateassociatedwiththefence(OA86)ofthePrisonerofWar camp,viewlookingsouthͲeast

©OxfordArchaeologyLtd vi 13May2020    OsterleyPark,Hounslow1 Plate14 Hollow(OA60)intheareaofa20thcenturybuilding,viewlookingsouthͲ west Plate15 ConcretepostintheboundaryfencebetweentheTriangularClumpandForty Field,viewlookingnorth Plate16 MetalpostintheboundaryfencebetweentheTriangleClumpandForty Field,viewlookingnorthͲwest Plate17 Ditchmarkingatrackway(OA65)shownonRocque’s1741map,view lookingnorthͲwest Plate18 Riflebutt(OA90)inthenorthͲeastcornerofShootingField,viewlooking northͲeast Plate19 ViewlookingsouthͲeastacrosstheShootingField Plate20 Earthworkassociatedwithagraveltrackway(OA92),viewlookingnorthͲeast Plate21 ViewlookingsouthͲwestacrossthesiteofanLͲshapedearthwork(OA179) associatedwithapondshownontheRocque’s1741map Plate22 LawntothenorthͲeastofOsterleyHouse(OA3),viewlookingsouthͲwest Plate23 Linearfeatures(OA185)onthenorthernbankofthepondinPondField, viewlookingnorth Plate24 ViewlookingwestacrossPondField Plate25 Largeditch(OA162)formingthenorthandwestboundaryoftheGreat Meadow,viewlookingnorthͲwest Plate26 Bridge(OA8)crossingtheGardenLake,viewlookingsouthͲeast Plate27 TheGardenHouse(OA2),viewlookingnorth Plate28 TheTempleofPan(OA1),viewlookingwest Plate29 TheWalledKitchenGarden(OA29),viewlookingnorthͲeast Plate30 Theicehousemound(OA45),viewlookingnorthͲeast Plate31 Treeenclosure(OA164)shownonthe1832mapofOsterley,viewlooking southͲwest Plate32 Ditch(OA39)associatedwiththe18thcenturyformalgarden,viewlooking west Plate33 SecondWorldWarbombcrater(OA176),viewlookingwest Plate34 Modernboundaryditch(OA76),viewlookingnorthͲwest Plate35 Gardenspoilheap(OA99),viewlookingsouthͲeast Plate36 OsterleyHouse(OA3),viewlookingnorthͲwest Plate37 TheStables(OA4),viewlookingsouthͲwest Plate38 GoogleEarthAerialPhotograph(imagerydate1/1/1945)

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  OsterleyPark,Hounslow1 Summary

OxfordArchaeology(OA)hasbeencommissionedbytheNationalTrusttopreparean archaeological deskͲbased assessment for Osterley Park. The site is centred on 514500,177980. ThesitecoversthesouthernpartofOsterleyParkandfallsentirelywithintheGradeII* registeredparkandgarden.Thisstudyhashighlightedthatthesitehasamoderate potentialtocontainPalaeolithicfinds,alowpotentialtocontainMesolithicremains,a moderatepotentialtocontainNeolithicfinds,alowetomoderat potentialtocontain BronzeAgeremainsandalowpotentialtocontainIronAgeandRomanremains. Duringthemedievalperiodthesitewasprobablyinuseaswoodland,althoughthereis someevidence,intheformofsurvivingridgeandfurrowearthworksandheadlands, thatitmayhave beencultivatedinparts.Thesiteisconsideredtohavepotentialto contain further earthworks and archaeological features associated with medieval cultivationpractices. Sinceitsemparkmentinthe16thcenturythesitehasbeenmanagedasacombination ofagriculturallandandparkland.Ithasbeensubjecttoseveralphasesoflandscape designwhichhavechangeditfroma16thcenturydeerparktoan18thcenturyformal garden and later into 18thͲ19th century landscape park. The current park largely reflectsthelayoutofthe18thand19thcenturylandscapepark. AspartofthisassessmentareviewofEnvironmentAgencyLiDARdata,NationalTrust aerialphotographsandGoogleEarthimageryhasbeencarriedoutinordertoclarify thepotentialforandpresenceoffeaturesassociatedwiththeearlieriterationsofthe park.Thisstudyhasidentifiedanumberofearthworkswithintheparkrelatingtothe earlierphases oftheparklanddesign,includingearthworkremainsassociatedwiththe 18th century formal garden, earthworks associated with the different alignments of OsterleyLaneandevidenceofthe16thcenturyparklandboundary. DuringtheSecondWorldWarpartsofthesitewereutilisedasaShootingRange,a PrisonerofWarcampandahospital.Evidenceforthesestructuresisvisiblewithinthe currentlandscapeasearthworkremains,fencelinesandupstandingbuildingremains. Thesiteisconsideredtohaveahighpotentialtocontainfurtherunidentifiedremains fromthisperiodoftheparkshistory. The below ground archaeological remains, upstanding earthworks  and surviving structures within the site are considered to make a significant contribution to the archaeological,historicandarchitecturalinterestsofOsterleyParkandwouldbenefit from a planned programme of archaeological investigation, management and recording.  

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1 INTRODUCTION OxfordArchaeology(OA)hasbeencommissionedbytheNationalTrusttopreparean archaeologicaldeskͲbasedassessmentforOsterleyPark,henceforthknownas‘the site’.Thesiteiscentredon514500,177980,anditslocationisshownonFigure1. The deskͲbased assessment was commissioned by the National Trust to provide archaeologicalevidencetosupportamajorconservationmanagementplanforthe property which was undertaken in late 2019 and early 2020. The scope and methodologyforthedeskͲbasedassessmentwassetoutintheprojectbriefsupplied by theNationalTrust(28thMay2019). This report has been prepared in accordance with the Chartered Institute for Archaeologists (CIfA) Standards and Guidancefor HistoricEnvironment DeskͲbased Assessments (2017) and Planning Policy Guidance (2019)ͲHistoric Environment, publishedbytheMinistryofHousing,CommunitiesandLocalGovernment.

2 AIMSANDOBJECTIVES The purpose of this deskͲbased assessment is to determine as far as reasonably possible, from existing records and observations, an understanding of the historic environmentwithinthesiteandsurroundingstudyareainorderto: x provide an assessment of the potential for archaeological remains to survive withinthesite; x assessthesignificanceofknownandpredictedarchaeologicalremains; x assess the likely impacts of previous development upon the survival of any archaeologicalremains;and x providekeyrecommendationsrelatingtomanagementandfurthersurvey.

3 LOCATION,TOPOGRAPHYANDGEOLOGY OsterleyParkisoneofthelargestareasofopenspaceinLondon.Itissituatedc14.5km tothewestofHydePark,c5kmtothenorthofHounslowandc8kmnorthͲeastof HeathrowAirport.ItfallswithintheadministrativedistrictsoftheLondonBoroughof HounslowandtheLondonBoroughofEaling.Theparkisdividedintotwosegments bytheM4Motorway.ThesitecoversthesouthernpartoftheparkwhichisinNational Trustownershipandcoversanareaof147.4ha. ThesiteisboundedtotheeastbyWindmillLane(B464),tothesouthbyJerseyRoad, tothenorthbytheM4andtothewestbyagriculturallandandplayingfields.The topographyofthesiteislargelylevelwithaslightslopefromthenorthͲeastofethesit  whichissituatedatc22maboveOrdnanceDatum(aOD)tothesouthͲwestofthesite whichissituatedatc29maOD. The bedrock geology of the site is made up of clay and silt of the London Clay Formation which was formed approximately 48Ͳ56 million years ago during the PalaeogenePeriod.TwosuperficialdepositsarerecordedoverlyingtheLondonClay. TaplowGravelMember,SandandGraveldepositscovertheeasternand centralparts

©OxfordArchaeologyLtd 2 13May2020    OsterleyPark,Hounslow1 ofthesiteandLynchHillGravelMember,SandandGraveldepositsarerecordedalong thewesternedgeofthesite.Bothofthesedepositsarefluvialinoriginandwere formedbetween362and126thousandyearsagoduringtheQuaternaryPeriod.

4 METHODOLOGY 4.1 ScopeandSourcesConsulted ThemainrepositoriesofarchaeologicaldataforthesitearetheNationalTrustHistoric EnvironmentRecord(NTHER),andtheNationalHeritageListforEngland(NHLE)which wereusedtoidentifydesignatedandnonͲdesignatedheritageassetswithinthesite. TheGreaterLondonHistoricEnvironmentRecord(GLHER)holdsdataforthesiteand thesurroundingarea.Datafora1.5kmsearcharea(hereafter‘thestudyarea’)was obtainedfromtheGLHERtoplacethesitewithinitsfullarchaeologicalcontext.In additiontothesedatasetsthefollowingprincipalsourceswereconsultedtoinform thisassessment: x HistoricmappingassuppliedbytheNationalTrust; x LiDARdataasheldbytheEnvironmentAgency; x Aerialphotographstakenaspartofadronemountedphotosurveycarriedoutby theNationalTrust; x GoogleEarthimagery; x Theresultsofpreviousarchaeologicalinvestigationscarriedoutwithinthesite andstudyarea; x GeotechnicaldataheldbytheBritishGeologicalSurvey;and x Other relevant primary and secondary sources including published and unpublishedworksasheldbyOAandrelevantlibraries. ForeaseofreferenceeachheritageassetidentifiedhasbeenallocatedauniqueOA number.ThisisincludedintheheritagegazetteerprovidedinAppendixA,referredto inthetextwhererelevantandmarkedonFigures2–5.Afulllistofsourcesconsulted canbefoundinAppendixB.HistoricmappingforthesiteisdepictedonFigures9–19. The entire site is in National Trust ownership with the exception of a small area adjacenttoOsterleyParkFarm.Thelocationofthisareaisshownasexcludedon Figure1andsubsequentmaps. 4.2 AssumptionsandLimitations Datausedtocompilethisreportconsistsofsecondaryinformationderivedfroma varietyofsources.Theassumptionismadethatthisdata,aswellasthatderivedfrom othersecondarysources,isreasonablyaccurate. TherecordsheldbytheNTHER,NHLEandtheGLHERarenotarecordofallsurviving heritageassets,butarecordofthediscoveryofawiderangeofarchaeologicaland historicalcomponentsofthehistoricenvironment.Theinformationheldwithinitis not complete and does not preclude the subsequent discovery of further heritage assetsthatare,atpresent,unknown.

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5 PLANNINGBACKGROUND 5.1 NationalPlanningPolicy Section16ofNationalPlanningPolicyFramework(NPPF)asissuedinFebruary2019 sets out the Government’s planning policies in relation to the conservation and enhancementofthehistoricenvironment. Paragraphs189and190state: ‘189. In determining applications, local planning authorities should require an applicanttodescribethesignificanceofanyheritageassetsaffected,includingany contributionmadebytheirsetting.Thelevelofdetailshouldbeproportionatetothe assets’importanceandnomorethanissufficientto understandthepotentialimpact oftheproposalontheirsignificance.Asaminimumtherelevanthistoricenvironment recordshouldhavebeenconsultedandtheheritageassetsassessedusingappropriate expertisewherenecessary.Whereasiteonwhichdevelopmentisproposedincludes, or has the potential to include, heritage assets with archaeological interest, local planningauthoritiesshouldrequiredeveloperstosubmitanappropriatedesk-based assessmentand,wherenecessary,afieldevaluation. 190.Localplanningauthoritiesshouldidentifyandassesstheparticularsignificanceof any heritage asset that may be affected by a proposal (including by development affectingthesettingofaheritage asset)takingaccountoftheavailableevidenceand any necessary expertise. They should take this into account when considering the impactofaproposalonaheritageasset,toavoidorminimiseanyconflictbetween theheritageasset’sconservationandanyaspectoftheproposal.‘ Paragraphs193and194state: ‘193.Whenconsideringtheimpactofaproposeddevelopmentonthesignificanceof adesignatedheritageasset,greatweightshouldbegiventotheasset’sconservation (and the more important the asset, the greater the weight should be). This is irrespectiveofwhetheranypotentialharmamountstosubstantialharm,totallossor lessthansubstantialharmtoitssignificance. 194.Anyharmto,orlossof,thesignificanceofadesignatedheritageasset(fromits alterationordestruction,orfromdevelopmentwithinitssetting),shouldrequireclear andconvincingjustification.Substantialharmtoorlossof: a) grade II listed buildings, or grade II registered parks or gardens, should be exceptional; b)assetsofthehighestsignificance,notablyscheduledmonuments,protectedwreck sites,registeredbattlefields,gradeIandII*listedbuildings,gradeIandII*registered parks and gardens, and World Heritage Sites, should be  wholly exceptional (non- designated heritage assets of archaeological interest, which are demonstrably of equivalentsignificancetoscheduledmonuments,shouldbeconsideredsubjecttothe policiesfordesignatedheritageassets).’ Paragraphs195and196state:

©OxfordArchaeologyLtd 4 13May2020    OsterleyPark,Hounslow1 ‘195.Whereaproposeddevelopmentwillleadtosubstantialharmto(ortotallossof significanceof)adesignatedheritageasset,localplanningauthoritiesshouldrefuse consent, unless it can be demonstrated that the substantial harm or total loss is necessarytoachievesubstantialpublicbenefitsthatoutweighthatharmorloss,orall ofthefollowingapply: a)thenatureoftheheritageassetpreventsallreasonableusesofthesite;and b)noviableuseoftheheritageassetitselfcanbefoundinthemediumtermthrough appropriatemarketingthatwillenableitsconservation;and c)conservationby grant-fundingorsomeformofnotforprofit,charitableorpublic ownershipisdemonstrablynotpossible;and d)theharmorlossisoutweighedbythebenefitofbringingthesitebackintouse. 196. Where a development proposal will lead to less than substantial harm to the significanceofa designatedheritageasset,thisharmshouldbeweighedagainstthe public benefits of the proposal including, where appropriate, securing its optimum viableuse.’ Paragraph197states: ‘Theeffectofanapplicationonthesignificanceofanon-designatedheritageasset shouldbetakenintoaccountindeterminingtheapplication.Inweighingapplications thatdirectlyorindirectlyaffectnon-designatedheritageassets,abalancedjudgement willberequiredhavingregardtothescaleofanyharmorlossandthesignificanceof theheritageasset.’ Paragraph199states: ‘Local planning authorities should require developers to record and advance understandingofthesignificanceofanyheritageassetstobelost(whollyorinpart)in amannerproportionatetotheirimportanceandtheimpact,andtomakethisevidence (andanyarchivegenerated)publiclyaccessible.However,theabilitytorecordevidence ofourpastshouldnotbeafactorindecidingwhethersuchlossshouldbepermitted.’ 5.2 LocalPlanningPolicy HounslowLocalPlan2015to2039 TheHounslowLocalPlanwasadoptedon15thSeptember2016byHounslowBorough Council.Itformspartoftheplanningframeworkfortheborough. PolicyCC4Heritage,outlinestheborough’sapproachtoheritageitstatesthat: ‘We [the Council] will identify, conserve and take opportunities to enhance the significance of the boroughs heritage assets as a positive means of supporting an area’sdistinctivecharacterandsenseofhistory.’ PolicyCC4goesontostate ‘Wewillexpectdevelopmentproposalsto: (i) Conserveheritageassetanditssettinginamannerappropriatetoitssignificance;

©OxfordArchaeologyLtd5   13May2020    OsterleyPark,Hounslow1 (j) Retain,conserveandreuseaheritageassetinamannerappropriatetoitsvalue andsignificance; (k) Demonstratethatsubstantialharmtoorlossofaheritageassetisavoided,unless exceptionalcircumstancescanbedemonstrated,consistentwiththeNPPF; (l) Demonstratethatwhereadevelopmentproposalwillleadtolessthansubstantial harmtothesignificanceofadesignatedheritageasset(seeGlossary),thisharm willbeoutweighedbythepublicbenefitsoftheproposal,includingsecuringits optimumviableuse;or (m) Have regard to any harm to, or loss of, the significance of a non-designated heritage asset, including from both direct and indirect effects. Non-designated heritageassetsincludelocallylistedbuildings,ArchaeologicalPriorityAreasand areasofspeciallocalcharacter. … Conservationareas (o) AnydevelopmentwithinoraffectingaConservationAreamustconserveandtake opportunitiestoenhancethecharacterofthearea,andrespectthe grain,scale, form,proportionsandmaterialsofthesurroundingareaandexistingarchitecture; and (p) Retain and reuse any building in a conservation area which makes or can be adaptedtomakeapositivecontributiontothecharacterofthearea.Wherea buildingmakeslittlecontributiontothearea,consentr fo demolitionwillnotbe givenunlessthereareapprovedplansforredevelopmentorreuseofthelandwhich willconserveandenhancethecharacterofthearea.Sustainabilityandsalvage aspectsshouldbefactoredintoproposals. … Sitesofarchaeologicalimportance (r) WewillexpectthedevelopmentproposaltosubmitanArchaeologicalEvaluation ReportiftheproposalfallswithinoradjacenttoanArchaeologicalPriorityArea; (s) We may require that an on-site assessment by trial work (archaeological field evaluation)iscarriedoutbeforeanydecisionontheplanningapplicationistaken; and (t) Wewillrequireanynationally importantremainsandtheirsettingstobepreserved permanentlyinsitu,subjecttoconsultationwithHistoricEnglandastheborough’s archaeologicaladviser.Ifpreservationinsituisrequired,thedevelopmentproposal willneedtoaccommodatethisinthedesign. … Registeredparksandgardens (w) Consider adding to the list  and encouraging preservation and enhancement throughappropriatemanagementmeasures.’

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6 WALKOVERSURVEY A walkover survey of the site was carried out to ground truth the presence of earthworksidentifiedbytheGreaterLondonHERandtheNTHER.Thesurveywasalso usedtoinvestigatetheearthworksidentifiedbytheNationalTrustArchaeological Survey (Section 7.10), the LiDAR data (Section 7.11) and the National Trust drone surveycarriedout2018(Section7.12).Thesiteisdividedintoanumberoffieldsand forpurposesofclaritythesitewalkoverisdiscussedwithreferencetothefieldnames shownonFigure1. Thesurveywascarriedoutonthe6thNovember2019,conditionsweremostlydry andovercastwithintermittentsunshineandthemajorityofthesitewasaccessible. HomeFarmFieldinthenorthernpartofthesitewasonlyaccessibleviaaprivatedrive whichfallsoutsideoftheNationalTrustholding,accordinglythispartofthesitewas notaccessed.AtthetimeofthesitevisittheShootingFieldintheeasternpartofthe site was in use as paddocks for rescue horses and could not be accessed. It was possibletoobservethepresenceofearthworksinpartsofthisareafromOsterley Lane.ThenorthͲwesternpartofthesitecomprisingOrchardField,HollyFieldandYard Paddockwasinarableuseatthetimeofthesitevisitandcontainedonlyafewpossible earthworks(OA175)whichappeartobeassociatedwithmodernfieldboundaries, accordinglythisareawasnotvisited. AnalysisoftheLiDARdataanddronesurveyresultshighlightedthatthemajorityof theearthworkswerefocusedtothesouthofthesite,inHospitalField,theIndian Clump,AllotmentFieldandtheTriangularClump;inthenorthofthesiteinHomeFarm Field,NorthEastMeadowandPondField;totheeastofthesiteinShootersField;and inthecentreofthesiteinTheGreatMeadow.Theseareasinparticular,weretargeted duringthewalkoversurvey. SouthͲwesternpartofthesite The southͲwestern part of the site includes Hospital Field, ScrattagePark, and the IndianClump. AtthetimeofthesitevisittheIndianClumpwasunderpasture.Thisfieldhadbeen identifiedascontainingearthworksassociatedwitha17thcenturygardenfeatureor possiblyaheadland(OA25)andaparchmarkindicativeofasmallbuilding(OA171). Thesitewalkoversurveyconfirmedthepresenceofaslightbreakofslopeorditch followingasimilaralignmentasOA25(Plate1)butdidnotidentifyanyevidencefor OA 171. A shallow ditch was identified running on a northͲwest to southͲeast alignmentalongthesouthernboundaryoftheIndianClump(Plate2), thisfeature correspondswiththeformerboundaryofthepark(OA38)asshownonGlover’sMap of1665(Fig9).TheIndianClumpisseparatedfromHospitalFieldbyaPublicRightof Way(PROW),thePROWismarkedonbothsidesbybankstoppedwithpostandwire fencesA (O 83)(Plate3).ThisboundaryoriginallydefinedtheextentoftheSecond WorldWarMilitaryHospitalwhichoccupiedHospitalField.ElementsoftheSecond World War fence appear to have been reused in the fences on either side of the footpath(Plates4and5).

©OxfordArchaeologyLtd7   13May2020    OsterleyPark,Hounslow1 HospitalFieldwasunderpastureatthetimeofthesitevisitandhadbeenidentified as having the potential to contain earthworks associated with the 17th century boundaryofthepark(OA38)andalinearearthworkassociatedwithamodernservice trench (OA 177) The modern service trench was clearly visible (Plate 6), but no evidenceoftheboundaryearthwork(OA38)wasidentified. Scrattage Park had recently been ploughed at the time of the site visit and no earthworkswerevisibleinthisarea. SouthͲeasternpartofthesite ThesouthͲeasternpartofthesitecontainstheTriangularClump,AllotmentFieldand theMainDrive. The Main Drive provides access to Osterley House from the south. The earthwork remainsofthe17thcenturyboundaryofOsterleyPark(OA38)crosstheMainDrive onanorthͲwesttosouthͲeastalignment.Earthworkremainsofthisfeaturecanbe observedinthegreenvergesoneithersideoftheroad(Plates7and8).Allotment FieldimmediatelytotheeastoftheMainDrivehadbeenrecentlyploughedatthe timeofthesitevisitandcontainednovisibleearthworks. TheTriangularClumpislocatedimmediatelytothenorthofAllotmentField.Atthe timeofthesitevisitthefieldwasmanagedasshortgrasswithascatteringofmature trees.TheeasternpartofthefieldcontainedtheremainsoftheGermanandItalian Prisonerof War(POW) campA (O 88).Alargeditch(OA55)probablymarkingthe original course of Osterley Lane was observed during the site visit (Plate 9). This featurecorrespondswiththealignmentofOsterleyLaneasshownonRocque’s1741 map.Alinearditch(OA62)correspondingwithafieldboundaryshownon Rocquewas alsoobserved(Plate10).Furthertotheeast,intheareaofthePOWcamp,concrete andbrickfootingsofformerbuildings(OA87,OA89)wereobserved(Plates11and 12).TheremainsofthePOWcampfence(OA86)andgatewerealsoobserved(Plate 13).Noevidenceofthelargeenclosurecontainingthecamp(OA88)wasobservedon theground.Ahollow(OA60)wasobservedinthenorthͲeasternpartoftheTriangular Clumpduringthesitevisitandthisfeaturecorrespondswithasmall20thcentury building shown on the 1963Ͳ66 Ordnance Survey Map (Plate 14). The northͲsouth alignedlinearearthwork(OA64),whichcorrespondswiththewesternextentofthe POWcamp,wasnotobservedduringthewalkover.TheLiDARsurveycarriedoutas partofthisassessmentidentifiedtwofurtherlinearearthworks(OA198and200) withinthisfieldbutneitherofthesefeatureswereobservedduringthesitewalkover. NorthͲeasternpartofthesite ThenorthͲeasternpartofthesiteincludesFortyField,ShootingFieldandtheNorth EastMeadow. FortyFieldliesimmediatelytothenorthoftheTriangularClumpandisseparatedfrom itbyapostandwirefence.Withinthefencelineconcreteposts(Plate15)andametal post (Plate 16) were identified. These features appear to represent the reͲuse of materialsfromthe POWcampandHospital.AtthetimeofthesitevisitFortyField was under pasture. Several linear earthworks (OA 65, OA 177 OA 195Ͳ7) were identifiedinthisfieldbytheLiDARsurvey(Fig.7a)andtheaerialphotographanalysis

©OxfordArchaeologyLtd 8 13May2020    OsterleyPark,Hounslow1 (Fig.8a)butonlyOA65wasidentifiedduringthesitewalkover(Plate17).Thisfeature correspondswithatrackordrivewayshownonRocque’s1741map. TheShootingFieldliestotheeastofFortyFieldandisseparatedfromitbyOsterley Lane.Atthetimeofthesitevisitthisareawasinuseashorsepaddocks.Avisual inspectionofthisareawascarriedoutfromOsterleyLane.Themajorityofthisarea couldnotbeaccessed.Thisareacontainsanumberofupstandingfeaturesassociated withitsuseasaSecondWorldWarshootingrange.Duringthesitevisitariflerange butt(OA90)wasobservedinthenorthͲeastcornerofthefield(Plate18)andseveral linearearthworkswereidentified. Plate18showsthenorthernpartoftheshooting field.Alinearfeature(OA180)isclearlyshownrunningonasouthͲeasttonorthͲwest alignmentacrossthisarea.Theoriginsofthisfeatureareuncertainbutitmayhave beenassociatedwiththeshootingrange.Plate19showstheviewlookingsouthͲeast fromOsterleyLane.Alinearditch(OA93)isclearlyshownrunningonasouthͲeastto northͲwestalignmentthroughthefield.Theditchappearstobecrossedbyasecond linearfeature(possiblythesouthͲwestͲnortheastbranchofOA189).Theremainsof apossiblegraveltrack(OA92)identifiedbytheNationalTrustArchaeologicalSurvey werealsoobservedduringthesitevisit(Plate20). TheNorthEastMeadowliestothewestofFortyFieldseparatedfromitbyMiddle Lake.AnLshapeddepression(OA179)hasbeenrecordedonthesouthͲeasternbank ofthelake.Thisfeatureisthoughttocorrespondto‘HernlhawPond’asshownon Rocque’s1741map.Thisareas wa overgrownatthetimeofthesitevisit(Plate21)and assuchthepresenceofanearthworkinthisareacouldnotbeconfirmed.TothenorthͲ westandwestofMiddleLakealargeareaofridgeandfurrow(OA26)wasrecorded ontheLiDARsurvey. Noearthworksassociatedoftheridgeandfurroworthepossible headland(OA69)underlyingtheridgeandfurrowwereobserved.Thelinearbanks (OA173,OA163)inthenorthͲwestcornerofthisfieldwerelocatedinanovergrown areaandcouldnotbeobserved.NoearthworkswerevisibleinthelawntothenorthͲ eastofOsterleyHouse(Plate22). Northpartofthesite ThenorthpartofthesiteincludesPondFieldandHomeFarmField.Itwasnotpossible toaccessHomeFarmFieldatthetimeofthevisit.PondFieldwasinuseaspasture andaccesswasrestrictedbytheherdofyoungcattlewhichoccupiedtheareatothe northofthepondduringthesitevisit.Twolinearfeatures(OA185)wereobserved duringthewalkoversurveyonthenorthernbankofthepond(Plate23).Aslightditch wasobservedinthevicinityofapossibleheadland(OA23),butthisdoesnotappear tobethe bankrecordedintheNationalTrustArchaeologicalSurvey(Plate24).No evidence of the ridge and furrow earthworks (OA 184) shown on the LiDAR was observed. TheGreatMeadow TheGreatMeadowissituatedtothesouthͲwestofOsterleyHouse,surroundedtothe northandwestbyalargeditch(OA162)(Plate25)andtothesouthbyGardenLake (Plate26).Allpartsofthisareawereaccessedandatthetimeofthesitevisitthe area wasmanagedasamixofgardensandlawnswithdiscreteareasoftreeplanting.The GreatMeadowcontainsanumberofstructuresassociatedwiththeearlierphasesof

©OxfordArchaeologyLtd9   13May2020    OsterleyPark,Hounslow1 theparkincludingtheGardenHouse(OA2)whichwasbuiltin1775(Plate27),The TempleofPan(OA1)whichwasbuiltinthelate1740s(Plate28),thewalledkitchen garden(OA29)whichwasconstructedin1776(Plate29),theicehousemound(OA45) shownonthe1832mapofthepark(Plate30)andthebridgeandboathouse(OA8) whicharealsoshownonthe1832map(Plate26).Elementsoftheplantingshownon the1832mapoftheparkarealsopreservedwithinthepresentdaypark,including threecircularenclosuressurrounding treeplantations(OA164,165,169)(Plate31). Earthworkremainsassociatedwiththe18thcenturyformalgarden(OA39)werealso observed(Plate32). Other modern earthwork features observed within the Great Meadow include a Second World War bomb crater (OA 176) (Plate 33), the line of a modern fence removedinthe1990s(OA76)(Plate34),andamoundinterpretedasgardenspoil heap(OA99)(Plate35).

7 HISTORICANDARCHAEOLOGICALBASELINE 7.1 Introduction OsterleyParkisan18thcenturylandscapeparkandpleasuregroundlaidoutonthe siteofanearlierformalgarden.ThehouseatthecentreoftheparkwasbuiltbySir Thomas Gresham between 1562Ͳ77, on the site of the old farmhouse. The old farmhousewassaidto havestoodinthemiddleofapleasantpark,wellwoodedand containingseveralfishpondsandaheronry(Tait1980).Afterfallingintoastateof disrepairthehousewasboughtbyFrancisChildin1711andwasremodelledbythe architectRobertAdam.Theparkandgardenssurroundingthe housewereextensively alteredduringtherebuildingofthehouseandtheformalgardenswerereplacedby aninformallandscapepark.ThehouseandgardenspassedtoSirFrancis’brother, RobertChild,in1763,andthentoRobertChild’sgranddaughter,LadySarahSophia Fanein1804whomarriedthefifthEarl ofJersey.In1949theninthEarlofJerseygave thehouseand57haoftheestatetotheNationalTrust.Afurther77hawereacquired bythetrustin1990andtheremainderoftheparkisinprivateownership. ThesiteincludesthesouthernpartofOsterleyPark.Thenatureofthearchaeological resourcewithinthesiteandthesurroundingstudyareaisdiscussedbyperiodbelow. ThelocationsofdesignatedheritageassetswithinthesitearemarkeduponFigure2, thelocationsofnonͲdesignatedheritageassetsareshownonFigures4Ͳ5andprevious archaeologicaleventsareshownonFigure3.Furtherdetailsofallsitesareprovided inAppendixA. 7.2 DesignatedHeritageAssets ThesiteissituatedwithintheGradeII*registeredparkandgarden(OA12)andthe OsterleyParkConservationArea.WithinthesitetherearefourGradeIlistedbuildings andsixGradeIIlistedbuildings.TheGradeIlistedOsterleyHouse(OA3)(Plate36)is situatedatthecentreofthesite.OsterleyHousewasbuiltinthe16thcenturyforSir ThomasGreshamandwaslaterremodelledinthe18thcenturytodesignsbyRobert Adam.TothenorthofOsterleyHousearetheGradeIlistedbuildings,TheTemple(OA

©OxfordArchaeologyLtd 10 13May2020    OsterleyPark,Hounslow1 1)an18thcenturysmallDorictemple(Plate28),TheAviaryorLittleOrangeryan18th IonicTemplebuiltasaconservatoryandalsoreferredtoastheGardenHouse(OA2) (Plate27),andOsterleyHouseStables(OA4)whichwerebuiltin1575(Plate37).The GradeIIlistedbuildingswithinthesitecompriseOsterleyParkFarmhouse(OA6),the GardenWallstothenorthofOsterleyParkFarmhouse(OA5),TheGardenWallstothe southofOsterleyParkFarmhouse(OA7),theBridgewithinOsterleyPark(OA8)(Plate 26),theEntranceLodgestoOsterley(OA9), andtheGatePierswithinOsterleyPark (OA10).ThelocationoftheseheritageassetsisshownonFigure2. 7.3 PreviousArchaeologicalInvestigations The following is a summation of previous archaeological ‘events’ and key findings undertaken at Osterley Park since the late 1980s. This text was prepared by the NationalTrustArchaeologist,GaryMarshal.ENAnumbersappearinginbracketsinthe textaretheeventnumbersassignedbytheNTHistoricEnvironmentRecord(NTHER). Thesearefollowedbyreferencesforwrittenreports,wheretheyexist.Copiesofthese reports are held on the HBSMR and also on the Trust’s consultancy folders at Z:\Consultancy\Osterley Property Group\Osterley Park and House\Land Use\Archaeology.GLHERrefsrefertotheeventnumberheldbytheGreaterLondon HistoricEnvironmentRecord. ThecontentoftheNTHERisbasedonaninitialinventoryofsites(approximately90in total)compiledafterfieldwalkingandassessmentofhistoricmapsbytheNational Trust’sarchaeologist,GaryMarshall,between2000and2002(ENA2293).Secondly after a walkover of the property conducted in 2019, also by Gary Marshall, when additionalfeaturesevidentfromLIDARdatawereassessed.The2019walkoveradded approximately 30 new sites to those previously recorded. The current inventory amounts to 115 sites covering earthworks, findspots, sites known from historic documentationandsitesrecordedfromgeophysicsandparchmarksurveys.Parch marksevidentinJuly2018andrecordedphotographicallybyMarkSmeatonfroma dronemountedcamera(ENA9104,9105,9106,9113)eitherconfirmedorsuggested severalnewsitesontheestate(photosstoredontheaforementionedconsultancy address). InadditiontotheabovefieldworkandLIDARtranscriptionthearchaeologicalrecord isalsoderivedfromanumberofsitespecificevents,includingbuildingsassessments, geophysicssurveys,dowsingsurveysandwatchingbriefs. OsterleyHouse The north wall of the Blue Damask bed chamber above the Gallery was ‘stripped’ (wallpaper?)in1980,revealingawindowinthecentreblockedwith18thc.(1760s?) bricks(ENA2425,authorunknown,c.1980). Detailed investigations of the house were undertaken by Eileen Harris, Richard Hewlings(InspectorofAncientMonumentsandHistoricBuildings)andFrankKelsallin 1993(ENA9173).Theseresultedintwounpublishednotes(‘Osterley’notesbyRichard Hewlings(May1993)and‘Observations’(May1993). AwatchingbriefmaintainedbyNationalTrustarchaeologistAngusWainwrightin1992 (thenundertakingregionalarchaeologicalpropertysurveysfortheformerThamesand

©OxfordArchaeologyLtd11   13May2020    OsterleyPark,Hounslow1 ChilternsRegion)afterpanellingwasliftedfromthenorthwallofthenorthwingof the house revealed several phases of brick construction (ENA2310, Wainwright, 1993?).Thesameauthorrecordedbrickstepsdiscoveredunderthecurrentportico stepsontheeastfrontofthehouseinJuly1992(ENA2309and2427, Wainwright, 1993?).Aspartofthesameworksawatchingbriefwasmaintainedafterrepairsto failedbrickworkandrottenwindowframesintheLongGallery(ENA2311,Wainwright, 1993?). Asurveyofthebasementroomsanddiscussionoftheirpossibledevelopmentwas carriedoutbyPaulDruryin2010(ENA5996,Drury,August2010).AlsobyDruryin 2010, an assessment was made of Adam’s designs for Osterley (ENA9475, Drury, March2010).Ablockeddoorwayandevidenceforliningpaperswas recordedinthe YellowBreakfastRoomin2012and2013(ENA6942andENA7254,Bush,2012,Reed, 2012,Finlay,2013).Pencildrawingsofthisevidencewereundertakenbyvolunteersat 1:20scaleandarecurrentlyheldatthehouse(ENA7254).Recordingoffloorjoistson theupperfloorandnorthcorridor atOsterleyParkwasundertakenbytheTrust’s buildingsurveyorGilesGriffithsin2016(ENA8326).Alowersetoffloorboardsand joistswasobservedandGriffithsconcludedthatthedoorshadalsobeencutdownto accommodatetheraisedfloor(theHBSMRholdsemailcorrespondenceandasingle photo).Griffithsalso(2016)tookphotographstorecorddetailsoftheeastpediment andwoodenboardingtodies(ENA8318,againphotosheldontheHBSMR). In2017recordingofexposedbrickworkonthewestfrontstepswasundertakenby NationalTrustarchaeologistGaryMarshall(ENA8654,Marshall,2017).Marshallalso in2018recordedbrickworkinthebasementofOsterleyParkaftertheremovalof plaster, including the infilled brick niches on the west wall of the west passage (ENA9228,ENA9239,Marshall,2018). Stables,stableyardandoutbuildings Architecturalanddocumentaryappraisalsofthestablesextendasfarbackas1983 whenanassessmentwasundertakenbyJeremyLakein1983(ENA9174,Lake,1983). AfurtherappraisaloftheEastStableFlatwasundertakenbyAngusWainwrightin 1991Ͳ92(ENA8040,Wainwright,1992). A watching brief over the excavation of three tree pits in the stable yard was undertakenin1991(ENA2306,Wainwright,1993?)(GLHERrefELO1228).Aprobable 19thcenturywallwasuncovered,alsoanundatedbrickculvertandpossibleTudor groundlevels,withtheevidencesuggestingthestableyardlevelhad beenraisedas part of the 1760s Adam alterations. A watching brief was also maintained by Wainwrightin1992overatrenchbetweenthewestwingofthestablesandthenorth doorofthehouseencounteredremainsofthe19thcenturywatertower,18thcentury brickculverts,several18th centurybrickwallsandaTudorwallclosetothenorthwall ofthemansion.(ENA2307,Wainwright,1993?).WatchingbriefbyAngusWainwright in1992overatrenchbeginningfromthenorthͲwesttower,feedingintoanexisting drain(ENA2308,Wainwright,1993?). Furtherassessmentsofthebuildingsincludeanarchitecturalappraisalofthestables carried out by Oxford Archaeological Unit (OAU) in 1991 (ENA2314, Oxford ArchaeologicalUnit,1991)(GLHERrefELO1225).In1992notesonthewestwingof

©OxfordArchaeologyLtd 12 13May2020    OsterleyPark,Hounslow1 theStableBlockwerecompiledbyWainwright(ENA8052,Wainwright,1992),andin 1993, further notes on the stable block and also the barn (ENA8041, Wainwright, 1993).In1994architecturalrecordingwascarriedoutbyOAUtotheeastwingofthe stablespriortoconversion(ENA2313,OxfordArchaeologicalUnit,1994).A watching briefbyOAUoveratrenchacrossthesouthsideofthestableyardandthreetreepits betweenthestableyardandthehousewasundertakenin1994,revealingevidenceof the17th/18thcenturydrainagesystem,furtherevidenceofthe19thcenturywater tower and leading to the  recovery of several 16th century architectural fragments (ENA2315,OxfordArchaeologicalUnit,1994)(GLHERrefELO1226).Awatchingbrief undertaken by National Trust project archaeologist Oliver Jessop in 1999 over alterationstothestablesandovertheexcavationofservicetrenchesinthestableyard revealedfurtherevidenceofbrickculverts,cobbled surfacesassociatedwiththewater tower and brick walls (ENA2304, Jessop, 1999) (GLHER ref. ELO1381). In 1999 recordingofthefloorofthepigeonloftoverthecarriagearchinthebarnwasalso undertakenbyJessop(ENA2316,Jessop,1999)(GLHERrefELO1227). Anelectrictrenchexposedfootingsforaboundarywallandgatepieralongsidebarn in2001(ENA2363,Marshall,2001). The key source of information relating to the stables is the comprehensive conservationmanagementplanpreparedbyPaulDrury2009(ENA8781,PaulDrury Partnership,2009). ParkFarmBuildings TheParkFarmbuildingswerethesubjectofavernacularbuildingssurveyin2003 (ENA3923,Moir,2003). GardensandPark A series of brick drains were discovered in 1992 during excavations for new paths around the Garden House (ENA2426, Wainwright, 1992). A watching brief also by AngusWainwrightoveraseriesoftrialtrencheswascuttolocatetheVictoriandrive approachingtheeastfrontin1993(ENA2312andENA5576,Wainwright,1993?).A hogginbaseforthedrivewasuncovered,togetherwithstonesupportsforfencing alongtheedgeofthedrive.Thefoundationforalargebrickbuildingwasfoundin3 trenchestoinvestigateawaterleakoppositethetoiletsin2006(ENA3925,Marshall, 2006).SeeGeophysicsSurveysbelow. Excavationstothenorthfrontofhousein2017 foranewsurfacerevealeda2mdeepbrickchamberunderastonecover(ENA8786, planandphotoheldontheHBSMR).TwobrickfootingsdiscoveredintheAmerican Gardenduringexcavationsforthefoundationsfortwogardenseatsin2017(ENA8773, photoonHBSMR).ParchmarksrelatingtotheformerOrangerywererecordedbya droneͲmountedcamerainJulyof2018(ENA9113). Osterley’simportantWWIIassociationwiththeearlytrainingoftheHomeGuardhas beenextensivelyresearchedaspartofthe‘DiggingDad’sArmy’project.Excavationof twotrenchesintheparkin2010tolocateevidenceassociatedwiththeuseofOsterley ParkasthetrainingschoolfortheHomesGuardwa undertakenbyAndyBrockman (ENA6225, Brockman, 2011). The archaeological inventory includes a number of

©OxfordArchaeologyLtd13   13May2020    OsterleyPark,Hounslow1 wartimesitesassociatedwiththehospital(152283,)andtheGermanandItalianPOW camps(152241). Thoughnotstrictly‘archaeological’mentionshouldbemadeofseveralstudiesofthe gardensandpark.Theseincludeasurveyofthegardensundertakenin1979Ͳ80by theformerManpowerServicesCommissionscheme(ENA7138,Tait,1980),asurvey byCorineRenowͲClarkeoftheouterparkin1996(ENA9476,RenowͲClarke,1996)and aconservationplanforthegardensandparkundertakenbyColvinandMoggridgein 2005(ENA8640). NotesandcollectionofdatesrelatingtothedevelopmentofthePleasureGrounds werepreparedbytheTrust’sformerparksandgardensadvisor,MikeBuffin,in2006 (ENA9477,Buffin2006). AsmallcollectionofRomanbrooches,postͲmedievaltokensandbuttonblankswas recovered by the former car park attendant in the late 1990s from an unknown dispersedareaofthepark(sitenumbers152287and152288).Thefindshavebeen depositedinthemetalscollectionstoreatOsterley. ATrialTrenchEvaluation(GLHERrefELO3946)wascarriedoutatOsterleyAllotments byMuseumofLondonArchaeologicalServicesin1993(MoLAS1993).Nofeatures olderthanthelate19thcenturywerediscovered.Prehistoricflint,burntflintandfive medievalpotsherdswerefoundonthetopsoil. Geophysicalsurveys TherehavebeenanumberofgeophysicalsurveysundertakenatOsterleyPark.In1998 asurveyinvolvingresistivityandmagnetometrywasundertakenbytwostudentsfrom theUniversityofEastLondonontheeastfront(ENA3922,ModhaandPatel,1998). ThesurveypickeduptheoutlinesoftwoLilyPondscreatedinthe1930s,alsoevidence oftheformerdriveremovedin1993.Aresistivitysurvey(dateuncertain)toassess earthworks(site152255)onthewestfront,involving9of20x20msquarescompleted at1mintervalsprovedinconclusive(ENA9172).Aresistivitysurveyofthesiteofthe Orangery in  2006 revealed evidence for the foundations of the building and also associatedgravelpaths/terracing(ENA3924).Aresistivitysurveyin2007of3x20m gridsonthelawnadjacenttothenorthͲwestcornerofthehouse,undertakentolocate the path shown on the 1832 map, provided faint evidencer  fo  the below ground survivalofthisfeature(ENA4043).AresistivitysurveyoftheAmericanGardenin2008, undertakentotryandlocatethecomplexofzigzagpathsshownonthe1832estate plan, proved inconclusive (ENA4761). A resistivity survey in 2009 over a linear earthwork(site152244),possibly thecourseofthe20Ͳacreenclosureshownonthe GloverandRocquemaps,alsoprovedinconclusive.Asingle1x20msquareat1m intervalswascompleted(ENA5525).Ageophysicssurveyin2009ofthelawnopposite thetoiletblock(ENA5574,subsequentlyrepeatedin2011(ENA6422))toevaluatethe extent of a brick wall footing found in 2006 (ENA3925) revealed extensive below groundevidenceforbuildingsandcourtyardwallscorrespondingwithevidenceonthe 1741 Rocque map. The same survey was complemented by a dowsing survey undertakenbyvolunteerLaurieBoothin2011(ENA6336).

©OxfordArchaeologyLtd 14 13May2020    OsterleyPark,Hounslow1 7.4 PrehistoricPeriod(500,000BP–AD43) TheearliestprehistoricactivitywithinthestudyareadatestothePalaeolithicperiod (500,000 to 10,000 BP) and consists of a possible Palaeolithic kill site (OA 112) comprising Levallois points associated with a complete articulated mammoth skeleton.Thesitewasrecorded5mbelowthebrickearthlevel,900mtothenorthof thesite.Palaeolithictoolshavebeenrecordedelsewherewithinthesiteandstudy area within the Taplow Gravels. With the exception of the kill site these finds are unlikely to represent inͲsitu sites, but instead represent finds which have been redistributedwithinthegravelterracesbytheaction oftheriver. WithinthesitePalaeolithicfindspotsincludeacollectionoffivehandaxesand12flint flakes(OA13)foundinPondField,acollectionofrejuvenatedflakes(OA14),andan assemblageofhandaxes,cores,choppers,flakesandroughouts(OA15).Elsewhere withinthestudyareaisolatedstonetools(OA113Ͳ114,OA116),aflake(OA115)and ahandaxe(OA117)havebeenrecorded. The majority of the remaining prehistoric material in the study area dates to the Neolithic(Ͳ4000toͲ2200BC)andBronzeAge(Ͳ2200toͲ800BC)period.Remainsof thisperiodparticularlyinwestLondon,largelyappeartobeconcentratedontheriver terracesawayfromthefloodplain(Barrettetal2000;citedinMuseumofLondon 2002,23).Withinthesite,NeolithicactivityincludesaNeolithicchippedflintaxe(OA 17), unͲstratified worked and burnt flint found in the northͲeast corner of the allotment(OA18),andNeolithicsurfacefindsrecordedduringafieldwalkingsurvey (OA19). Inthewiderstudyarea,aconcentrationoflargecalcineflintswithageneralprehistoric date (OA 125, located 830m to the east of the site), prehistoric pottery and flint (OA126,located850meastofthesite)havebeenrecorded. EvidenceforBronzeAgeactivitywithinthestudyareaischaracterisedbycropmark ringditches(OA118Ͳ121).Ringditches,thoughttobetheremainsofploughedout BronzeAgeburialmoundshavebeenrecorded900mtothenorthofthesite(OA118), 290meastofthesite(OA120),575msouthofthesite(OA121)and510msouthͲwest ofthesite(OA119).FurtherevidenceofBronzeAgefuneraryactivitywithinthestudy areaincludestheremainsofaBronzeAgeburialurn(OA122)recorded250mtothe southͲeastofthesite. 7.5 RomanoͲBritishPeriod(AD43–410) Romanmaterialwithinthesiteandstudyareaischaracterisedbystrayfinds,including coinsandabrooch(OA21,OA127Ͳ28),aswellasresidualRomanpottery(OA129). ThesiteandsurroundingareawasprobablypartofthehinterlandofLondiniumduring thisperiod.ThenearestRomansettlementactivityisrecordedtothesouthͲeastofthe studyareainBrentford(Allenetal2018). 7.6 TheMedievalPeriod(AD410–1550) EarlyͲMedievalPeriod(AD410–1065) Duringtheearlymedievalperiodthesitewasprobablywoodlandassociatedwiththe ancientparishofIsleworth(VCH1962).ThemanorofIsleworthisrecordedinthe ©OxfordArchaeologyLtd15   13May2020    OsterleyPark,Hounslow1 DomesdaySurveyof1086asalargemanorof105villagers,6smallholders,6cottagers and1priest.In1066themanorwasheldbyEarlAlgar,passingtoWalterofStValery followingtheNormanConquest.AtthetimeoftheDomesdaySurveythemanorwas associatedwith6.5 lord’slands,20ploughsofmeadow,woodlandfor500pigs,2mills and0.75churchlands(PowelSmith2019). NoevidenceofearlyͲmedievalactivityhasbeenrecordedwithinthesite.Theonly earlyͲmedieval activity in the wider study area are some earlyͲmedieval field boundaries(OA137)whichwererecordedduringanexcavationatNorwoodGreen Road. LaterMedievalPeriod(1066–1550) ThefirstrecordsofOsterleydatebacktotheearly13thcenturywhen‘thewoodsof Osterleeweretheresortofwildcattleandoutlaws’(Tait1980,3).Theplacename comesfromtheOldEnglish‘eowestre’and‘lĤah’,meaningwoodlandclearingwitha sheepfold(Mills2011).John deOsterleeisrecordedasholdingtwocarucatesofland atIsleworthandHestonatthistimebutitisnotcertainwhetherhegavehisnameto themanororwhetherhederivedhisnamefromthemanor. OsterleyisalsorecordedasthelocationofaNormanfortorwatchtowerusedto protectconvoysofprovisionsontheRoyalRoadfromLondontoWindsor(Tait1980). DuringthemedievalperiodthenorthandnorthͲeastpartsofthesiteappeartohave beencultivated.Evidenceofthisformerlandusehasbeenrecordedwithinthesiteas medievalorearlypostͲmedievalridgeandfurrowearthworks(OA24,26,184)and headlands1(OA23,OA69).Theareaofridgeandfurrowimmediatelytothewestof thelake(Fig7)appearstocrosstheheadland(OA69),suggestingthattheearthworks inthisareaareofalaterdatethantheheadland. Anearthwork(OA25)hasalsobeenrecordedinthesouthpartofthepark.Thisfeature has been described in the National Trust HER as either ploughed out headland or alternativelyitmaybeassociatedwithanenclosure,possiblyawalledgarden,shown ontheRocqueMap(Figure10). ThefeatureisvisibleasanearthworkonLiDARofthe site(Figs.6Ͳ7)andappearstocorrespondwithaparchmarkshownuponGoogleEarth SatelliteImagery(imagerydates27Ͳ6Ͳ2010and17Ͳ7Ͳ2013)suggestingthatthefeature ismorelikelytobeassociatedwiththefootingsofawall. Asmallmedievalhamletisrecordedinthesouthernboundaryofthesite(OA111). ThisisrecordedonMosesGlover’s1635planofIsleworth(Fig.9)asasettlementcalled Scrattedgewhichcomprisedalineoffifteenfarmsandcottageslocatedtothesouth ofJerseyRoad. Othermedievalheritageassetswithinthesiteincludeunglazedpottery(OA22,OA 111)andamedievalfindspot(OA109).

  1Aheadlandisanareaofuntilledland,usuallyheldincommonattheheadofthestripsinamedievalopenfieldsystemuponwhichthe ploughwasturned(Richardson1986,17) ©OxfordArchaeologyLtd 16 13May2020    OsterleyPark,Hounslow1 7.7 PostͲMedievalPeriod(1550Ͳ1900) In1565SirThomasGreshamwasgrantedlicencetoimpark600acresatOsterley.This includedupto140acresoftilledland.Thetilledlandwasmostlikelyformedbya processofwoodlandclearanceandassartingduringthemedievalperiod.Itislikely thatthelandscapepriortoemparkmentwasmadeupofenclosedassarts(VCH1962) althoughtherewassomecommonlandtotheeastofOsterleythatbecameabsorbed into the estate. The greater part of the land to be emparked was associated with Osterley Farm, which was already held by Gresham and comprised 200 acres stretching westwardsfromOsterleyLanetoHestonVillage.Greshamalsoreceivedthe freeholdOsterleyLaneandFawknersField(30Ͳ40acres)totheeastofthefarm,which allowed him to divert Osterley Lane away from the main house (ibid). The former courseofOsterleyLaneasshownonGlover’s mapispreservedasasunkenholloway (OA30,55).AfewmonthsafterhisfirstgrantGreshamsecuredanadditionalareaof landcalledAllcottswhichallowedhimtoextendtheparktotheNorwoodBoundary. Theparkwasfurtherextendedin1567when Greshamwasgrantedpermissionto enclose 10acresofWykeGreenforafine(ibid). InthemidͲ16thcenturySirThomasGreshamreplacedtheoriginalfarmhouse,which isbelievedtobesituatedonthesiteofthewestwingofthestables,withalargemanor house (OA 3) which was situated in a pleasant park, wellͲwooded and containing severalfishpondsandaheronry(Tait1980).Thestablebuildings(OA4)associated withthehousewerebuiltin1566andalteredin1568. OsterleyHousewascompletedin1577andwasusedtoentertainQueenElizabeth1st ontwooccasionspriortoGresham’sdeathin1579.DuringthattimeGreshamhadthe forecourtinfrontofthehousedividedintwobyawall,apparentlyattheQueen’s suggestion(VCH1962).Thefourcornerturretsofthepresentbuildingappeartobe survive,withsomerefacinginthepresentbuildingbutvirtuallynothingmoreisknown aboutthe16thcenturyhouseasidefromthefactthatithadaprivatechapel(ibid). Thegroundssurroundingthe16thcenturyOsterleyHousewereinuseasalargeDeer Park.ThefirstmaptoshowthegroundsisMosesGlover’sMapofIsleworth1635, whichshowthehousesituatedinawalledgardensurroundedbypastoralfieldsand wooded areas. This landscape was replaced in the earlyͲmid 18th century by the formalgardensshownonRocque’sMapofLondon1741(seesection7.10andFigure 10). ElementsoftheformalparkshownontheRocquemapincludingearthworkremains ofahaͲha(OA31),hedgebanksorlynchets(OA38,68),thesiteoftheOrangerybuilt byRobertAdamsin1789(OA34),thebaseofafountain(OA49)andthe18thcentury courseofOsterleyLane(OA55),survivewithinthelaterlandscapeasearthworksand below ground archaeological remains. Other features possibly associated with the formalparkincludeanearthworkbankandditch(OA66,67),recordedinthenorthern endoftheShootingField,whichappearstofollowthealignmentof themainavenue shownonRocque,andanorthfacinglynchet(OA98)whichmarksthealignmentofa trackshownontheRocque. TheGradeIlistedDoricTemple(OA1)locatedtothenorthͲwestofthehousewas constructedduringthe18thcenturyaspartoftheformalgardens.Thetempleisnot

©OxfordArchaeologyLtd17   13May2020    OsterleyPark,Hounslow1 shownontheRocqueMapandaccordinglyitisbelievedtohavebeenbuiltforSamuel Childinthelate1750sorearly1750s. The estate changed hands frequently during the 17th and early 18th centuries. Owners during this period included Sir William Read,SirEdward Coke, the Earlof Desmond,SirWilliamWallerandDrNicholasBarbon(Tait1980).In1711theestate wassoldtoSirFrancisChildanditremainedwiththeChildfamilythroughoutthe18th century.SirFrancisChild’sgrandson(alsoFrancisChild)inheritedthepropertyin1752 and began an extensive remodelling of Osterley House (OA 3) to designs by the architect Robert Adam (Historic England 2001). The 18th century remodelling preservedthegroundplanofthe16thcentury housebutresultedinthe16thcentury walls and turrets being encased in new walls in a classical style (Tait 1980). The parklandsurroundingthehousewasalsoextensivelyreͲmodelledatthistime,with theformalgardensshownontheRocque1741mapbeingreplacedwiththe19th centuryinformallandscapeparkwhichisshownontheEnclosureMapof1818(see Section7.10andFigure12).Severalnewbuildingswereaddedtotheparkduringthe late18thandearly19thcenturyincludingtheGradeIlistedIonicTemple(OA2)which wasbuiltin1775asaconservatoryforthepleasuregardenstothenorthͲeastofthe house,theGradeIIlistedgatepiers(OA10)whichweredesignedbyRobertAdamand installedin1777,theGradeIIlistedOsterleyParkFarmhouse(OA6)whichwasbuilt in1780,theGradeIIlistedgardenwalltothesouthofOsterleyParkFarmHouse(OA 7,46),whichwasbuiltineitherthe18thor19thcenturyandWykeLodge(OA70), whichwasbuiltin1777. Thedesignofthe19thcenturylandscapeparkshownonthe1818EnclosureMaphas beenattributedtoMrsRobertChildandherStewardMrBunce.In1804LadySarah SophiaFane,RobertChilde’sgranddaughter,inheritedtheestateandonhermarriage tothefifthEarlofJerseyOsterleypassedintotheownershipoftheJerseyFamily(ibid). During the 19th century the park was subject to an extensive programme of tree planting, including fenced groups or islands of trees in the park, and boundary plantings(HistoricEngland2001).TheGradeIIlistedBridgeandBoathouse(OA8), firstshownonthe1832Estatemap,wasaddedtotheparkinthisperiod,providinga viewingpointofthelakeandthepark.Otherparklandfeaturesassociatedwiththe 19thcenturydevelopmentoftheparkincludetheGradeIIlistedentrancelodges(OA 9),theicehouse(OA45)shownonthe1832mapofOsterley,JubileeLodgeA(O 52), a19thcenturyboundarystone(OA51),atimberbridge(OA57)shownonthe1stand 2nd edition Ordnance Survey maps (Figs. 15Ͳ17), Salopian House and early 19th centurycottage(OA58). Inaddition,severalfeatureswithageneralpostͲmedievaldatehavebeenrecorded withinthesite.Theseincludetheremainsofanoctagonalwatertower(OA42)located inthesouthͲwestcornerofthestableyard,andahollow(OA60)whichmayrepresent theremainsofastableorbarn. 7.8 Modern Intheearly20thcenturytheflowerbedsandshrubberiessurroundingthehousewere extendedandtherewasfurthertreeplantingwithinthepark.

©OxfordArchaeologyLtd 18 13May2020    OsterleyPark,Hounslow1 DuringtheSecondWorldWarthefieldtotheeastoftheSouthAvenuewasconverted intoallotments(OA73)andtheparkwasgivenovertobeefcattleandhayfarming. ThesouthͲeasternpartofthesitewasutilisedasaGermanandItalianPOWcamp(OA 88)which contained19gableͲroofhutsandapairofparalleldininghallswithacentral kitchen (NTHER 2019). The buildings associated with the camp were demolished sometimebetween1955and1960.Thefootingsoftheformerbuildingsassociated withthePOWcamp(OA89)havebeenrecordedinthesouthͲteas partofthesite (Figure8b,Plate38).Irregularlinearearthworksprobablyassociatedwiththesiteof theGermancamp(OA64)havealsobeenrecordedinthesouthͲeastpartofthesite andelementsoftheconcretepostfence(OA86)andanirongateassociatedwiththe POWcampstillsurvive. ThesouthernpartofthesitehousedaSecondWorldWarhospital(OA85)which comprisedtwomajorblocksofbuildingseachcomprisingacentralcorridorwithsix wardseithersideofthecorridor.Allthatremainsofthesiteisaseriesofveryslight andirregularearthworksandthe remainsofthehospital’sboundaryfence(OA83). Otherwartimefeaturesincludeasmallrectangularditchwithabankonitsoutside edge(OA75)whichmaybeassociatedwiththewartimeuseofOsterleybytheHome Guardor,alternativelygivenitsalignmentwiththehouse,itcouldhavebeenthesite ofsomeformof eyecatcher(NTHER2019). TheShootingField,whichissituatedintheeasternpartofthesitecontainsseveral possibleSecondWorldWarfeaturesincludingabrickriflebutt(OA90),aslightlyraised graveltrack(OA91)whichconnectstheShootingFieldtoOsterleyLaneandWindmill Lane,andtwostraightditchesassociatedwiththefiringrange(OA92,OA93). Between1940and1980theparkfencesandmanyoftheelmtreeswereremoved fromthepark(HistoricEngland2001).In1949theninthEarlofJerseygavethehouse and57haoftheestatetotheNationalTrust,andafurther77hawereacquiredbythe trustin1990(ibid). 7.9 Undated Twelveundatedheritageassetshavebeenrecordedwithinthesite.Thesecomprise asinglestoreytimberframebarn(OA94),aleanͲtobuildingattachedtothenortheast cornerofthekitchengardens(OA95),asinglestoreybrickstablebuilding(OA96),a raisedgraveltrack(OA97), araisedmoundinterpretedasaspoilheap(OA99),anoval shapedpond(OA101),brickpavingandadraincover(OA103)andparkrailings(OA 105) A series of possible features visible as earthworks (OA 104) visible on LiDAR or as cropmarks(OA100,OA107,OA108)visibleonhistoricaerialphotographshavealso beenrecordedwithinthesite. 7.10 NationalTrustArchaeologicalSurvey TheNationalTrustsuppliedOAwithaplanshowingtheresultsofanarchaeological survey(NationalTrustn.d.)carriedoutbytheNationalTrustwithinOsterleyPark.The surveyidentifiedarchaeologicalearthworksandsurvivingbuildingswithinthepark. TheNationalTrustgroupedtheidentifiedfeaturesintothreebroaddateranges(17th

©OxfordArchaeologyLtd19   13May2020    OsterleyPark,Hounslow1 toearly18thcentury,18thcenturyand19thto20thcentury).Theresultsofthissurvey alongsidetheresultsoftheLiDARanalysis(Section7.11)areshownonFigures7ato 7d.Forclarity,theresultsofthesurveyhavebeendiscussedbyfield.Thenamesofthe differentfieldswithinthesiteareshownonFigure1. InPondFieldinthenorthernpartofthesiteanumberof17thto18thcenturyfeatures havebeenidentified.ThesefeaturesincludeaPond(OA101),aslightbankinterpreted asaheadland(OA23),ahollowwayrepresentingtheformercourseofOsterleyLane (OA30)anda lynchetthatmarksthecourseofaroadshownonRocque’s1741map (OA98).AdjacenttotheformercourseofOsterleyLaneinHomeFarmFieldisaslight circulardepressionthatmarksthesiteofapond(OA32)shownonthe1832planof thepark.A raisedgraveltrack(OA97)isrecordedacrossthenorthernendofHome FarmField. InShootingFieldatthenorthͲeasternedgeoftheparktwonorthͲeasttosouthͲwest alignedparallelditches(OA66andOA67)arerecorded.Thesefeaturesalignwithan avenueoftreesshownonRocque’s1741map.Another17thto18thcenturylinear feature(OA189)runningonanorthͲwesttosouthͲeastalignment,isrecordedtothe westoftheseditches.ThemajorityoffeaturesinShootingFieldrelatetothefield’s useasariflerangeduringtheSecondWorldWar.Inthenorthernpartofthefielda brickͲbuiltshootingbutt(OA90) survives.Twolargeparallelditches(OA92andOA93) crossthefieldonanorthͲwesttosouthͲeastalignmentandmightrepresentsunken firingpositions.Thesefeaturesstopjustbeforearaisedgraveltrackway(OA91)which isthoughttobeofthesamedate.Atthesouthern endofShootingField,aditch(OA 68),possiblytheremainsofacurvedlynchethasbeenrecorded. Inthesouthernpartoftheparkthesurveyrecordedfeaturesrangingindatefromthe 17ththroughtothe20thcentury.TothesouthofOsterleyHouseinthefieldknown asIndianClump,aslightbreakofslope(OA25)wasrecorded.Thisalignswiththeedge ofthe formalgardensrecordedon MosesGlover’sPlanandRocque’s map.Tothe southofthisbreakofslope,onthewesternsideofthemaindrive,isanorthͲwestto southͲeastalignedbank(OA38)whichappearstorelatetoafieldboundaryandthe edgeoftheparkasshownonMosesGlover’sPlanandRocque’smap.Thisfeature crossesthemaindriveandcontinuesonitssouthͲeasterlyalignmentintoAllotment FieldwhereitturnstofollowanorthͲeasterlyalignmentandbecomesOA61.The featurecontinuesintothefieldknownasTriangularClump,whereitislabelledasOA 63,terminatingattheedgeoftheformerrouteofOsterleyLane(OA55). FeaturesrelatingtotheSecondWorldWarPOWcamp(OA88),whichwaslocatedin the eastern part of the field known Triangular Clump, were also recorded by the NationalTrustSurvey.Theseincludeanarrowlinearditch(OA62),aclusterofirregular shapedearthworks(OA64),brickfootingsof abarrackblock(OA87)andaslabof concrete(OA89)relatingtoaformerbuilding. FurtherfeatureswererecordedinthesouthernpartofNorthͲEastMeadowinthearea totheeastofOsterleyHouse.ThesefeaturesincludedLilypondsandrosebeds(OA 79)onthelawntothenorthͲeastofOsterleyHouse,asectionof16thor17thcentury brickwallcorrespondingwithabuildingrangeshownonRocque(OA50)andtwo

©OxfordArchaeologyLtd 20 13May2020    OsterleyPark,Hounslow1 ditches(OA53)coincidingwithaformeralignmentofOsterleyLaneshownonthe Roquemap. TotherearofOsterleyHousewithinTheGreatMeadowtwoditches(OA39)possibly associated with the 17th century formal garden shown on Rocque, have been recorded.Otherfeatureswithinthisareaincludethesiteofthe19thcenturyicehouse (OA45),brickculverts(OA47),arectangularearthwork(OA75),aditch(OA76)anda raisedmoundandadjacentLͲshapedbank(OA99). 7.11 LiDAR An examination of LiDAR data was carried out to identify surviving archaeological earthworkswithinthesite.TheLiDARdatawascapturedbytheEnvironmentAgency (EA)andmadeavailableviatheEAonlinearchive2.DigitalTerrainModel(DTM)tiles for Ordnance Survey Sheet TQ17nw and TQ17ne were downloaded, this data was surveyedat1mintervalsandwascollectedon9thand12thJanuary2004.TheDTM datawasprocessedusingtheReliefVisualisationToolkit(RVT)andvisualisationswere createdusingHillShade,SkyView factor,openͲpositive,openͲnegativeandsimple localreliefmodel(SLRM)visualisationtechniques. ExaminationoftheLiDARdataidentifiedanumberofarchaeologicalearthworks(not otherwisenotedorrecordedontheothersourcesexaminedforthissurvey)within thesite.Figures7aͲdshowtheresultsoftheLiDARanalysisalongsidetheresultsofan EarthworkSurveysuppliedbytheNationalTrust.Forclarity,theresultsofthesurvey havebeendiscussedbyfield.Thenamesofthedifferentfieldswithinthesiteare shownonFigure1. Inthenorthernpartofthesiteaneasttowestalignedtrackway(OA167)isvisible acrossthecentreofHomeFarmField. PondFieldissituatedinthenorthernpartofthesitetotheeastofHomeFarmField. Anareaofpossibleridgeandfurrow(OA184)isrecordedtotheeastofthepondand twoparallelditches(OA185)areshowntothenorthͲwest.Theditchesaresituatedon eithersideofaloweredareaonthenorthbankofthepondwhichmayhavebeen createdwhenmaterialexcavatedfromthepondwascartedaway(NTHER2019).The groundsurfaceonthenorthernbankofthepondisunevensuggestingsomelimited soildumpinginthisarea.Furthertothenorthofthepondthreelinearfeatures(OA 186)arerecorded. TheNorthͲEastMeadowliestotheeastofPondFieldandtothewestoftheenlarged MiddleLake.Alargeareaoffaintridgeandfurrowearthworks(OA26)appearonthe LiDARinthisarea.Theridgeandfurrowcrossesalinearbank(OA69)whichcrosses thew meado onanorthͲeasttosouthͲwestalignment.Thefactthattheridgeand furrowappearstorunovertheridgesuggeststhatitpredatestheridgeandfurrow andcouldbealatemedievalfeature(NTHER2019). TheShootingFieldliestotheeastoftheenlargedMiddleLakeinthenorthͲeastern extremityofthepark.TheLIDARdatashowsanumberofpreviouslyunrecordedbanks   2Downloadedfromhttp://environment.data.gov.uk/ds/survey/#/survey/ ©OxfordArchaeologyLtd21   13May2020    OsterleyPark,Hounslow1 andditches(OA180,OA189,OA190,OA192andOA193)inthisareawhichprobably relatetotheuseofthefieldasashootingrangeduringtheSecondWorldWar.Other features in this area include a long ditch (OA 166) associated with the farmed landscape shownonRocque’smap,twoparallelbanks(OA174),twomodernservice trenches (OA 177 and OA 178), a ditch (OA 191) which defines the edge of the woodlandandalinearfeatureformedfromtwoditches(OA194)whichwereprobably associatedwitha17thcenturyavenue. AnumberofearthworksarealsovisibleonLiDARinthesouthernpartoftheparkin thefieldknownasTriangularClump.TheTriangularClumpliesinthesoutheastern partofthesitetotheeastoftheMainDrive.Theeasternpartofthisareacontainsthe remainsofaGermanandItalianPOWcamp(OA88),whichisdiscussedinmoredetail inSection7.10.),ThewesternpartofTriangularclumpcontainsaroughlynorthto southalignedfeature(OA198)whichextendsfromtheformerrouteofOsterleyLane (OA55)toahollow(OA60)markingthesiteofaformerbuilding.Alinearfeature(OA 199)ofunknownoriginliestothesouthofthePOWcampandrunsparalleltothe formerrouteofOsterleyLane.Twoparallelfeatures(OA200),alsoofunknownorigin werealsoidentifiedinthesouthwesternpartof TriangularClump. ScrattageParkisafieldinthesouthͲeasternpartofthepark.Alinearfeature(OA170), wasidentifiedfromtheLiDARinthisarea.Thisfeatureliesoutsidetheextentofthe 18thcenturyparkandcouldbetheremainsofanagriculturalboundaryortrack.The northͲeastern boundary of Scrattage Park is defined by a bank (OA 202) which is toppedwithapostandwirefence.Someofthefencepostsappeartohavebeenpart oftheSecondWorldWarfencewhichoriginallyranalongthisboundary. IntheGreatMeadowtothewestofOsterleyHouse,averyslightcurvinglinearditch (OA37)isvisibleontheLIDAR.Thisfeaturecorrespondswithacurvedgardenfeature onthewesternsideofthewalledgardenshownonRocque’s1741map.Threecircular enclosures(OA164,OA165andOA169)arealsoclearlyshowntheLiDAR.These featuresaredefinedbyshallowditcheswhichdemarcateplantationsfirstshownon the 1832 plan of Osterley Park. Between these plantations is a complex of linear features(OA182)whichmightrelatetoditchesortrackways.InthenorthͲwest corner oftheGreatMeadowadjacenttotheGreatWalkisalargecircularfeature(OA176) thoughttobeaSecondWorldWarbombcrater. Modernhedgesanddrainageditches(OA175)defining20thcenturyfieldsknownas OrchardField,HolyFieldandYardPaddockareshownontheLiDARinthenorthͲeast cornerofthesite.Furthertothesouthashallowbank(OA183)definestheboundary betweenTheLongMeadowandScrattage ParkinthesouthͲwestpartofthesite. 7.12 DroneMountedPhotoSurveyandSatelliteImagery TheNationalTrustundertookadronemountedphotographsurveyofOsterleyParkin 2018.TheresultsofthissurveyhasbeenreviewedalongsideGoogleEarthimageryto identifycropmarkandparchmarkfeatureswhichcouldindicatethepresenceofbelow groundarchaeologicalremains.Theidentifiedfeatureswereconcentratedwithinthe NorthEastMeadow,FortyField,theTriangularClumpandtheIndianClump.Figures 8aand8bshowaplotofthecropmarksandparchmarksidentified.

©OxfordArchaeologyLtd 22 13May2020    OsterleyPark,Hounslow1 Arectangularfeature(OA171),firstidentifiedasaparchmarkandlaterrecordedon theLiDAR,wasrecordedinthenorthernpartoftheIndianClump.Thefeatureappears tobeabuildingapproximately20mby10minsize.Nobuildingsarerecordedatthis location on historic maps but the possible building is close to the walled gardens shownonMosesGlover’smapandtheRocquemapandaccordinglythebuildingmight datetothisperiod(NTHER2019). Alinearfeature(OA188)wasidentifiedasaparchmarkinthenorthernpartofForty Field.Thefeaturesfollowthesamealignmentasapreviouslyidentifiedlynchet(OA 68)andcouldbeacontinuationofthisfeature.InthesouthernpartofFortyFieldtwo parallellinearfeatures(OA196)alignedeasttowestandathirdlinearfeature(OA 197)alignednorthͲwesttosouthͲeasthavebeenidentified.Thelocationofthetwo parallellinearfeatures(OA196)correspondswithaformeralignmentofanAvenue shownonRocque’s1741map. Onthemainlawn,inthesouthernpartoftheNorthEastMeadow,alargesquare parchmark(OA203)hasbeenrecorded.Theparchmarckdefinesan80mby80marea whichcorrespondstothegardenpathsshownonthe1940OrdnanceSurveymap. WithintheareaoftheformerPOWcamp,intheeasternpartoftheTriangularClump, parchmarks show the location of at least 15 buildings (OA 204). These remains correspondwiththebarrackblocksusedtohouseGermanPOWsduringtheSecond WorldWar. 7.13 MapRegression Amapregressionexercisehasbeenundertakenaspartofthisassessmentandarange of cartographic sources supplied by the National Trust have been consulted. The findingsofthisregressionaresummarisedbelow. 17thCenturyOsterleyPark ThefirstmaptoshowthegroundsisMoses’GloversMapofIsleworth1635(Fig.9), whichshowsthehousesituatedwithinwalledgardenssurroundedbypastoralfields andwoodedareas.Accesstothehouseandgardensappearstohavebeenviaalane whichenteredthesitefromthenorth(OA30),skirtingtheeasternsideofthewalled garden,passingonanorthͲwesttosouthͲeastalignmentthroughthesite(OA55)and linkingwithWykeGreenCommon,outsideofthesitetothesouthͲeast.Immediately totheeastoftheaccessroadandtothenorthͲeastofOsterleyHouse,Glovers’Map showsalargelakeorpondwhichconnectstoaseriesofsixsmallerinterlinkingponds whichruninanorthͲeasterlyalignmentfromthehousethroughthesitetojoinwith theRiverBrent.Abuildingrecordedonthemapasalodge(OA59)isshownwithin thesitetothesouthofthepondsandanothersmallbuildinglabelledas‘Doggehouse’, probablythekennels(OA36),isshowntothesouthͲwestofthehouse.  18thCenturyOsterleyPark Rocque’sSurveyofLondon1741Ͳ45(Fig.10)showsthemidͲ18thcenturylayoutof Osterley Park. By the midͲ18th century the grounds surrounding Osterley House appear to have been completely redesigned as a formal garden. The Rocque map

©OxfordArchaeologyLtd23   13May2020    OsterleyPark,Hounslow1 showsOsterleyHousesetwithinawalledgardenwithasmallerwalledformalgarden (OA41)tothenorthofthehouse.Thelane,whichprovidedaccesstothehousefrom thenorth,appearstohavebeendivertedawayfromthehousetotheeast(OA53), passingthroughtheparkonanorthͲwesttosouthͲeastalignment(thenorthͲwestͲ southeastalignmentofthelaneismarkedbyOA196)tojoinwithWickGreentothe southͲeastofthesite.AnewaccessroadleadingtoOsterleyHousefromthenorthis alsoshown,passingsouthwards throughthesmallerwalledgarden,behindthestables andleadingtotherearofOsterleyHouse. Thelake,shownontheGloverMap,intheareatothenorthͲeastofOsterleyHouseis nolongerpresentonRocque’sMapandthesurviving17thcenturypondshavebeen alteredtoformfourponds,LongPond,MillPond,PikePondandHernlhawPond.The buildingsreferredtoas‘thelodge’andthe‘Doggehouse’arenolongerdepictedon theRocquemapandatreeͲlinedhalfcirclewithseveralstraightradiatingavenues extendsoutfromOsterleyHouseacrosstheeasternpartofthesite.Severalstraight avenuesalsoextendtothegroundstothesouthͲwestofthehouse.Tothesouthof thehouseRocque’smapshowsfurtheravenuesandformalponds.TothenorthͲeast ofthehousetheforecourtandcentralfountainareshown.Thedomesticbuildingsto thenorthofOsterleyHouseappeartohavebeenexpandedbythe18thcenturyand Rocque’ssmapshow themextendingeastfromthecurrentstableblock,framingthe viewoutfromthehousetowardsthemaindoubleavenue.Thesouthernpartofthe park is labelled as ‘lodge side’ on the Rocque map suggesting the presence of an entrancelodge,althoughnobuildingsaredepicted.Thesouthernmostpartofthesite appearstofalloutsideoftheparkatthistime,formingpartofWickGreen. The18thcenturyOsterleyParkisshownagainonCary’sActualSurveyofMiddlesex 1789(notdepicted).WhilethismapisshownatamuchsmallerscalethantheRocque MapitclearlyshowsLongPond,MillPond,PikePondandHernlhawPond.Anumber ofthestraighttreelinedavenuese ar stillshownonthismapbutsomeareabsent suggestingthatthereͲlandscapingoftheparkwasunderwaybythistime. 19thCenturyOsterleyPark Thenextmaptoshowtheparkisthe1807OrdnanceSurveyors’Drawing(Fig11).By theearly19thcenturytheformalparklandlandscapeshownonRocquehadbeen replacedwithanaturalisedlandscapepark.Theparkhadbeenextendedtothesouth bytheearly19thcentury,incorporatingpartof WickGreen.TheformernorthͲwest tosouthͲeastalignmentofOsterleyLanehadbeenaltered.ThenewrouteofOsterley Lane took visitors on a longer, circuitous route to the house, designed to take advantageofvariousviewsofthehousefromwithintheparkland.Thepondsshown on Rocquehadalsobeenalteredbythisperiodandnowformedaseriesofnarrow lakes which curved around the house and divided the park into two sections. The gardenstothesouthͲwestofOsterleyParkappeartohavebeenextendedtoform pleasuregroundsknownastheGreatMeadow,anaturalisedlandscapeofscattered treesandlawnssurroundedtothenorthandwestbyalargeditch.Thehouseanda walledfruitgardenareshown,separatedfromtheGreatMeadowbyahaͲha3.   3Aditchdesignedtokeeplivestockourwithoutinterruptingtheviewofthelandscapefromahouse(Richardson2003) ©OxfordArchaeologyLtd 24 13May2020    OsterleyPark,Hounslow1 The1818HestonEnclosuremap(Fig12)andGreenwood’sMapofMiddlesex1818Ͳ19 (Fig13)showstheearly19thcenturylandscapeinmoredetail.Thelandscapeappears relativelyunchangedsincetheOrdnanceSurveyorsDrawing,howevertheparkdoes onceagainappeartohavebeenextended,thistimetothe westincorporatingareas offormeragriculturalenclosure.TheEnclosureMapprovidesmoredetailaboutthe plantingwithinthepark,showinganavenueoftreesrunningalongsidetheditchwhich definestheGreatMeadowandtheGardenLaketothesouth.Elsewherewithinthe GreatMeadowtreeshavebeenplantedtogetherto formislandsoftrees(Tait1980) andalinearcopseoftreesisshownrunningnorthfromOsterleyLanetotheedgeof thepark.The1818enclosuremapshowsthehaͲhaandtheditchencirclingTheGreat Meadow,TheOrangery(OA34),theWalledGarden,OsterleyHouse(OA3), theStables (OA4)andtheGardenWallstothesouthofOsterleyParkFarmhouse(OA7). The 1832 Plan of Osterley Park (Fig 14) was issued in conjunction with an advertisement offering the house and park for let or Lease, by Messrs. Tennant, HarrisonandTennantofLondon.Themapprovidesmoredetailregardingthelocation ofthetreeplantingwithintheparkclearlyshowingthethree circulartreeclumps(OA 164Ͳ5,169)withintheGreatMeadowandthelinearcopseoftreesrunningnorthfrom OsterleyLane.TheIceHouse(OA45)isalsoclearlymarkedandthemainentrance driveisshownleadingnorthͲwestfromOsterleyHousetoconnectwithOsterleyLane. Theedriv appearstohavebeenlinedwithanavenueofelmtrees(Tait1980).The 1832mapisthefirstmaptoshowthepond(OA101)inPondFieldtothenorthofthe house. Thelayoutoftheparkshownonthe1865FirstEditionOrdnanceSurveymap(Fig15) isbroadlyreflectiveofthatshownonthe1832map,althoughthenorthͲwestcorner ofthesite(intheareaofOrchardField)hadbeenconvertedintoanOrchard.The entrancelodge(OA9,70)adjacenttoWykeGreenisshownonthismapandaguide postisshowninthenorthofthesiteadjacenttoOsterleyLane.Themaindriveleading tothehouseremainsunchangedfromthe1832map. AnEstateMap(Tait1980,Map5)(Fig16),ofunknowndateandorigin,isthefirstmap toshowtheMainDrive,runningsouthfromOsterleyHousetoScrattageLane.The newroadwasbuiltinresponsetotheconstructionoftheOsterleyParkandSpring Grove Railway Station (opened in 1883) to the south of the park (Tait 1980). An entrancelodgebuiltin1885isshownonthismaptotheeastofthemaindrive(OA 56),JubileeLodge(OA52)builtin1882andAvenueLodge(OA33)builtin1888are alsoshownonthismap. By the end of the 19th century the size of the pleasure grounds associated with OsterleyHousehadbeenreducedandmoreoftheparkwasgivenovertoagriculture. Thisisdemonstratedonthe1894OrdnanceSurveymap(Fig17)bythenewfence linessubdividingtheparkintofields.Otherchangesshownincludetheadditionofa newclumpoftreestothenorthͲeastofthehouseandtheexpansionofthewoodland inthewesternpartofTheGreatMeadow. 20thCenturyOsterleyPark Theearliest20thcenturymaptoshowtheparkisthe1920OrdnanceSurveymap(not shown). The most substantive change on this map is the increase in planting

©OxfordArchaeologyLtd25   13May2020    OsterleyPark,Hounslow1 throughout the site, but particularly in the area of The Great Meadow, the Indian ClumpandtheNorthEastMeadow.The1920mapshowstheMiddleLodge(later referredtoasJubileeLodgeOA52),AvenueLodge(OA33),thenewlyconstructed DevonLodge(OA78),(whichwasbuiltin1903tothewestofAvenueLodge)andthe newlyconstructedMasonsBungalow(OA81)(whichwasbuiltin1905onthewestern sideoftheMaindrive).Aseweragefilterbedisalsoshowninthenorthernpartofthe North East Meadow to the south of Middle Lodge. The sewerage filter bed correspondswithearthworks(OA163)identifiedintheNTHER. Fewchangesoccurredwithintheparkbetweenthe1920and1940OrdnanceSurvey maps(notshown).ThelawntothenorthͲeastofOsterleyHouseappearstohavebeen subdividedbyaseriesofstraightfootpaths(OA203)withastoneatthecentreand theMainDriveappears tohavebeendivertedtocrossthelawn.Furthertothesouth in the area known as the Triangular Clump a new building (OA 102) had been constructed.TherearenofurtherdetailsaboutthisbuildingintheNTHERbutitis noted that the building does not appear on the 1936 Ordnance Survey map, suggestingthatitwasbuiltbetween1936and1940. By1945thesouthernpartofthesitehadchangedsignificantly.AGoogleEarthaerial photograph(imagerydate1/1/1945)(Plate38)showsthesouthͲeasternpartofthe site,nowreferredtoasAllotmentField,asallotments.Theallotmentswereusedfor foodproductionbytheLandGirlswhowereaccommodatedintheStableBlockduring thisperiod(Porten2019).Tothewestofthemaindrive,intheareareferredtoas HospitalField,thephotographshowstheWWIIhospital(OA85)andtothenorthof AllotmentFieldintheeasternpartofTriangularClumptheItalianandGermanWPO  campisclearlyvisible(OA88).Thecampconsistedoftemporarystructures(tents), whichwereusedtohousetheItalianPOWsandmorepermanentNissanhutswhich wereusedtohousetheGermanPOWs.Theentirecampwassurroundedbyaconcrete andwirefence.Otherchangestotheparkinthisperiodincludetheconstructionof theshootingbutt(OA90)intheShootingFieldandthecreationofanewtrackway runningsouthͲwesttonorthͲeastfromthecornerofthelawn(infrontofOsterley House)totheeasternbankofMiddleLake. The1963Ͳ66OrdnanceSurveymap(notshown).showsthesitefollowingtheSecond WorldWar.ThehospitalandPOWcamparenolongerpresentandtheallotments appeartohavebeenrevertedbacktoagriculturaluse.Newadditionstotheparkon thismapincludeasmallbuilding(OA60)inthenorthͲwesterncorneroftheTriangular Clump.MiddleLodgeisfirstshownbyitscurrentnameJubileeLodgeonthismap.By the1969theM4hadbeenconstructed,dividingOsterleyParkintotwosegmentswith thesitetothesouthandtheMenagerieParktothenorthofthenewroad.Thesite haschangedverylittlesincetheconstructionoftheM4andtheonlynotablechange is the loss of the small building in the northͲwestern corner of Triangle Clump sometimeafterthecreationofthe1988Ͳ1995OrdnanceSurveymap(notshown).

©OxfordArchaeologyLtd 26 13May2020    OsterleyPark,Hounslow1

8 PREVIOUSIMPACTSANDSURVIVAL Sinceitscreationinthe16thcenturyOsterleyParkhasbeenthroughvariousphases ofbuilding,landscapingandagriculture.Grounddisturbanceassociatedwiththese activitieswouldhavehadavaryingimpactuponanyarchaeologicalremainspresent. Impactsresultingfrombuildingworkwithinthesitewouldbelocalisedtothefootprint of Osterley House, Osterley Park Farmhouse and the various entrance lodges, and garden buildings the site. Ground works associated with the creation of these structuresincludingtheexcavationoffoundationtrenchesandlater,theexcavationof serviceandutilitytrencheswouldhaveresultedinlocalisedtruncationorremovalof anyearlierarchaeologicalremainsandearthworks.Theimpactsresultingfromthese activitieswouldberestrictedtothefootprintofthebuildingsandserviceandutility trenches.PreviousarchaeologicalworkcarriedoutintheareassurroundingOsterley House has  confirmed that there is a high potential for archaeological remains to surviveintheareassurroundingthemansionandoutbuildings. Thecreationofthetracks,roadsandlanesthatcurrentlyandhistoricallyhavecrossed the site would also have had an impact upon both below ground archaeological remainsandearthworks.Thecreationofthesefeatureswouldhaveresultedinthe flatteningofearthworks,strippingoftopsoilandoverburdenandthelaying ofgravel ortarmacgroundsurface.Theseactivitieswouldhaveremovedshallowarchaeological featuresandtruncatedanyupstandingearthworks.Theimpactsresultingfromthe creationoftheroadsandtrackwayswouldbelimitedinextentandfocusedwithinthe footprintoftheroadsortracks.Thedepthofdisturbanceresulting fromthecreation ofthesefeaturesisalsolikelytoberelativelylimitedandasaresultitispossiblethat earlierarchaeologicalfeaturescouldsurvivebelowthislayerofdisturbance. AreviewofhistoricmapsshowingthesitehashighlightedthatOsterleyParkhasbeen subjecttoseveralroundsoflandscaping.Thesevariousphasesoflandscapingwould havehadsomeimpactuponthesurvivalofearlierarchaeologicalremainswithinthe site,thoughitisclearfromthecurrentsurveythat evidencefromeachsuccessive phaseoflandscapingstillsurvivesinthelandscape,albeitusuallyintheformofsubtle barely perceptibleearthworks such as field boundaries,avenues and trackways. In particular, the excavation, expansion and infilling of the various ponds and lakes presentintheparkduringthe17th,18thand 19thcenturieswouldhaveresultedin significant truncation of any earlier archaeological deposits in these areas. The excavationofotherparklandfeaturessuchasthehaͲhaandtheditchsurroundingthe Great Meadow would also have had a localised impact upon the archaeological resource. ThewartimeuseofOsterleyParkhasalsoresultedingroundworkswhichcouldaffect thesurvivalofarchaeologicalremains,particularlyinHospitalFieldandtheTriangular Clump.DuringtheSecondWorldWarHospitalFieldandtheTriangularClumpwere utilisedrespectivelyasaHospitalBuildingandaPOWCamp.Plate 38showsthatthe hospital covered the majority of Hospital Field. The hospital has since been demolishedandthereisnoevidenceoftheformerbuilding(withtheexceptionofthe remainsofthepostandwireboundaryfence)ontheground.Groundworksassociated withthecreationanddemolition oftheprefabricatedhospitalbuildingarelikelyto

©OxfordArchaeologyLtd27   13May2020    OsterleyPark,Hounslow1 havebeenrelativelyshallowandwouldhaveremovedanyupstandingearthworksor shallowarchaeologicalremains.Belowthisdepthofdisturbance,itispossiblethatany deeperarchaeologicaldepositspresentcouldsurvive. TheremainsofthePOWCamparestillvisiblewithintheTriangularClumpasconcrete buildingbases,brickfootingsandtheremainsofapostandwirefence.Theexcavation ofthefootings,foundationsandservicetrenchesforthesebuildingsislikelytohave truncatedorremovedanyshallowarchaeologicalremainse pr Ͳdatingthecamp.Given thetemporarynatureofthestructuresassociatedwiththecampitispossiblethat preͲSecondWorldWarremainscouldsurviveinlessdisturbedareasoftheformer camp.During the 1940s Osterley was utilised as a training ground for the Local Defence Volunteers who were a precursor to the Home Guard, it is possible that earthworksandartefactssurvivefromthisperiodofOsterley’shistory. Away from the identified areas of previous ground disturbance the site has been managedasacombinationofgardens,parkland,arablefarmlandandpasturesince the medieval period. A review of LiDAR and aerial photographs of the site has highlighted the presence of numerous surviving earthworks within the areas of parklandandpasture,aswellassomeenigmaticfeaturesevidentascropmarksor parchmarks.Thesefeatureshavebeenassociatedwithformerfieldboundariesand theearlierlayoutsandusagesofOsterleyPark.Earthworkremainsarelesslikelyto surviveinthearablepartsofthesite,whereagriculturalactivitysuchasploughing would have removing earthwork features and truncated shallow archaeological remainpresents.Theseareasareunlikelytopreservearchaeologicalearthworksbut could contain deeper below ground archaeological deposits. Areas of undisturbed pasture and parkland have the potential to contain well preserved archaeological remainsandearthworks.

9 ARCHAEOLOGICALPOTENTIALANDSIGNIFICANCE 9.1 Introduction ThesitecoversthesouthernpartoftheGradeII*registeredOsterleyPark.AsaGrade II*registeredparkandgardentheparkisconsideredtobea‘particularlyimportant siteofmorethanspecialinterest’(GardensTrust2016).Theparkisconsideredtohave a national significance which arises from  its historic, architectural, aesthetic and archaeologicalinterests.Thearchaeologicalandearthworkremainsassociatedwith the earlier phases of the park make a significant contribution to the historic and architecturalinterestsofthepark,byprovidingvisibleevidenceoftheformergarden designandthedevelopmentofthepark,asevidencedobythetw earliestsurveysi.e Gloverof1635andRocque1741Ͳ45.Thesitealsohasthepotentialforpreviously unidentifiedarchaeologicalremainswhichcouldaidinourunderstandingofthepreͲ parklandlandscapeandthedevelopmentoftheparkduringthepostͲmedievaland modernperiods.Ofparticularinterestisanysurvivingevidencerelatingtoboththe outlinesof,andfeatureslyingwithin,the20acregardenenclosureshownonboth Gloverand Rocque.Suchremainscontributetothearchaeologicalinterestsofthe gardenpark.Thesectionsbelowdiscussthepotentialfor,andsignificanceof,known andpotentialarchaeological remainswithinthesite.

©OxfordArchaeologyLtd 28 13May2020    OsterleyPark,Hounslow1 9.2 PrehistoricandRomanPeriods StrayPalaeolithicfindshavebeenrecoveredwithinthesiteandacrossthesurrounding studyarea.Thesiteisconsideredtohaveamoderatepotentialtocontainfurthersuch remains. Finds of this date are most likely to have been redistributed in the river gravelswhichunderliethesiteandareunlikely torepresentinsituremains.Ifsuch remains are found within the site, they are most likely to be of local significance. However,thesitealsohasthepotentialtocontainin-situactivityorhabitationsites sealed beneath the brick earth or interleaved within the gravels (as an in situ mammothkillsiteisrecordedinthestudyarea).Ifsuchremainswerefoundwithin thesite,theywouldbeconsideredtobeofnationalsignificance. NoMesolithicactivityhasbeenrecordedwithinthesiteorthestudyareaaccordingly thesiteisconsideredtohavealowpotentialtocontainfeaturesandfindsofthisdate. Neolithicactivitywithinthesiteandsurroundingstudyareaischaracterisedbystray finds of stone tools and burnt flint. There is no evidence for Neolithic settlement activitywithinthesiteorsurroundingstudyareaandaccordinglythesiteisconsidered to have a low potential to contains settlement remains of this period.The site is consideredtohaveamoderatepotentialtocontainNeolithicflintssimilartothose already recorded within the site.Such remains if present would be of local significance. Bronze Age activity within the study area is characterised by Bronze Age barrows, whichhavebeenrecordedascropmarkremainstothenorth,east,southandsouthͲ westofthesite.Itispossiblethatsimilarremainscouldextendintothesite,although nonehavecurrentlybeenrecorded.Asaresult,thesiteisconsideredtohavealowͲ moderatepotentialtocontainBronzeAgebarrows.Ifsuchremainsarefoundwithin thesite,theywouldbeconsideredtohavealocaltoregionalsignificance. NoIronAgeactivityisrecordedwithinthesiteorstudyareaandaccordinglythesite isconsideredtohavealowpotentialtocontainfindsorfeaturesofthisdate. During the Roman period the site appears to have been part of the hinterland of London(‘Londinium’).TheonlyRomanactivitywithinthestudyareaisrepresentedby strayfindsofpottery,coinsandabrooch.GiventheabsenceofsignificantRoman remainswithinthesiteorsurroundingstudyareathee sit isconsideredtohavealow potentialtocontainsRomanremains. 9.3 MedievalPeriod There is no recorded evidence for earlyͲmedieval activity within the site or surroundingstudyarea,accordinglythesitehasalowpotentialtocontainremainsof thisperiod. There is no known evidence for medieval settlement activity in this area and accordingly the site has a low potential to contain medieval settlement remains. Duringthemedievalperiodthesiteappearstohavebeenwoodlandassociatedwith themanorofIsleworth.Thepresenceofearthworkridgeandfurrowandheadlands withinthesitesuggeststhatpartsofthesitemayalsohavebeencultivatedinthis period,possiblyformingpartofanopenfieldsystemofcultivation.Thesiteisthus

©OxfordArchaeologyLtd29   13May2020    OsterleyPark,Hounslow1 considered to have the potential to contain further medieval agricultural remains. Suchremainsareconsideredtobeoflocalsignificance. 9.4 PostͲmedievalandModernPeriod From the 16th century onwards the site was managed as agricultural land and parklandassociatedwithOsterleyFarmandlaterOsterleyHouse.Duringthisperiod theparkwentthroughseveralphasesoflandscapedesignwhichchangedthepark froma16thcenturydeerparktoanearly18thcenturyformallandscape,andlaterto an18thcenturynaturalisedparkandpleasuregrounds.Thecurrentparklandbroadly reflectsthelater18thcenturydesignoftheparkalthoughelementsoftheearlierdeer parkandformalgardendesignsasevidencedbyRocquecanstillbeobservedwithin thesiteasearthworkfeatures,remnant plantingandreusedgardenstructures.The site contains known archaeological remains and earthworks associated with the various phases of the park and has a high potential to contain similar previously unrecorded features and remains. As an example it is possible that evidence may survivebelowthegroundforthe20acre gardenenclosureshownonGlover’s1635 planandapparentlysurvivingonRocque’splanwithasequenceofformalpondsand avenuessouthoftheTudormansion.Attheoppositeextremeparchmarkevidence confirmsthereislikelytobegoodsurvivalofthelilyponds,rosebedsandpathslaid outontheeastfrontlawnintheearly20thcentury,althoughtheirarchaeological significanceoughttobeaccordedaslow.Togethertheseremainscontributetothe historic,architecturalandarchaeologicalinterestsoftheGradeII*registeredparkand gardenandareconsideredlikelytobeofregionalsignificance. Previousexcavationsandgeophysicalsurveyshaveconfirmedthatthefootprintoflost service buildings, courtyard walls and a fountain dating from the 16th and 17th centuries survive below ground in the immediate environs of the house and outbuildings.Geophysicshassuggestedthatevidenceoftheformalentrancecourt shownonthet eas frontontheRocqueplanislikelytosurvivebelowgroundandthis shouldbeconsideredofregionalstatuswithhighpotential. Duringthemodernperiodthesitewassubjecttoincreasedtreeplantingbutbroadly retainedits18thand19thcenturylayout.Keychangestotheparkoccurredduringthe SecondWorldWarwhenthepartsofthesitewereutilisedasHospital,andPOWcamp andthesouthͲeasternpartofe thesit wasconvertedintoallotments.Upstandingand earthworkremainsofthePOWcampsurvive intheeasternpartoftheTriangular Clumpasconcretebuildingbases,brickfootingsandtheremainsofaconcretepost and wire fence and gate. This area also has the potential to contain previously unrecordedremainsassociatedwiththecamp.Duetothetemporarynatureoftheir design,andthereclamationofagriculturallandfollowingtheSecondWorldWarthe survivalofPrisonerofWarCampswithinEnglandisrelativelypoor(Thomas2003). Despitetheirpoorpreservation,theremainsatOsterleyhavethepotentialto provide evidenceregardingthewartimeuseoftheestateandprovideavisiblelinktothis periodofthepark’shistory.Asaresult,theknownandpotentialremainsassociated with the POW camp are considered to be of regional significance with moderate potential.

©OxfordArchaeologyLtd 30 13May2020    OsterleyPark,Hounslow1 Theonlyupstandingremainsassociatedwiththehospitalarethesurvivingfragments of post and wire fence which mark the boundary between the Indian Clump and HospitalField.Upstandingremainsofthehospitalappeartohavebeencompletely clearedfromthesitefollowingitsdemolition.Itispossiblethatconcretefootingand other archaeological remains associated with hospital survive as below ground featureswithinthisarea.Dependinguponthenatureandsurvivaloftheseremains theywouldmostlikelybeofeitherlocalorregionalsignificance,probablylowdueto thelikelyremovalofgroundlevelevidenceassociatedwiththehospital. ShootingField,inthenorthͲeasternpartofthesitecontainsupstandingandearthwork remainsassociatedwiththeSecondWorldWarShootingRange.Thelinearditches crossingthefield arethoughttobeassociatedwithatargetcarriersystem.These featuresalongsidetheupstandingremainsoftheriflebuttallowthefunctionofthe shooting range to be understood within the modern landscape. The upstanding remains,earthworkandanypreviouslyunrecordedarchaeologicalfeaturesassociated withtheshootingrangehavearchaeologicalinterestandareconsideredasagroupto haveregionalsignificance. The only other WWII remains within the site is the WWII bomb crater, this is consideredtobeoflocalsignificance. During the 1940s Osterley was utilised as a training ground for the Local Defence VolunteerswhowereaprecursortotheHomeGuard.Thereisamoderatepotential forearthworksandfindsassociatedwiththisperiodofOsterley’shistorytosurvive withinthesite.Suchremainsifpresentwouldbeconsideredtobeoflocalsignificance.

10 RECOMMENDATIONS 10.1 ManagementRecommendations TheNTHERrecommendsthatearthworksassociatedwiththeboundariesofthe16th century park (e.g. OA 38, 61, 63) should be preserved in situ. Similar earthworks associatedwiththeearlierphasesoftheparkarepresentwithintheGreatMeadow (OA39),PondField(OA98)FortyField(OA179) TriangularClump(OA5563)and IndianClump(OA25,38).Astheseremainsliewithinacurrentgrazingregimethe placing of salt licks, feed troughs and watering points and the movement of agriculturalvehiclesshouldbecarefullymonitoredandtheplacingofsuchfurniture continuallyrotatedtoavoidlocalised erosion.Remainsofthesouthernboundaryof theparkasshownbyRocquesurviverunningacrosstheStationLodgeavenue(OA38) areparticularlyvulnerableandneedtobepreservedinͲsitu.Suchremainscontribute tothearchitectural,historicandarchaeologicalinterestsoftheGradeII*registered parkandgardenandshouldbepreservedinsitu.Thesefieldscontainingthesefeatures are currently managed as parkland and pasture. A change in use from pastoral to arablefarmingwouldhaveadetrimentaleffectontheseremains.Theridgeandfurrow and possible headland in the NorthͲEast Meadow (OA26 and OA29) has become partially obscured by scrub growth in the centre of the meadow and the margins therefore need to be kept in check to ensure it does not spread further and thus obscuretheridges.

©OxfordArchaeologyLtd31   13May2020    OsterleyPark,Hounslow1 TheformeralignmentsofOsterleyLane(OA30,53,55,196)havedirectassociations withthevariousphasesofdesignwithinOsterleyPark.Earthworkremainsassociated with these features should be preserved in situ. As with the earthwork features mentionedabove.achangeinlandusefrompastoral/parklandtoarable wouldhave adetrimentaleffectuponupstandingearthworks.Againtheimpactofcurrentgrazing needstobecarefullymonitored.EarthworksinHomeFarmField(OA30,32,97,167) aresufferingbadlyfromerosioncausedbygrazingcattleandconsiderationshouldbe giventoreducinggrazingpressurethroughareviewofstockinglevels,timeofyear, useofmachineryandplacingoffeedlicksetc. SurvivingparklandearthworksintheGreatMeadowsuchasthelargeditchforming the north and west boundary of the pleasure grounds play an important role separatingthepleasuregroundsfromtheworkinglandscapeoftheestate.Thisfeature shouldbepreservedandisparticularlyvulnerabletoinfilling.Indeed,asa general recommendationtheinfillingofanysuchhollowswhichmayhaveanarchaeological originshouldbeavoided,oratleastonlyundertakenafterconsultationwiththeTrust’s archaeologist. The Second World War remains present in Hospital Field, Triangular Clump and Shooting Field comprise a combination of upstanding remains, earthworks, below groundarchaeologicalremainsandtheremainingelementsoftheSecondWorldWar concreteandwireboundaryfencesandgates.Thesefeaturesareanimportantpartof Osterley’shistoryande wher possibleshouldbepreserved.Continuedmanagement of these features as grassland (rather than arable) would help to preserve the earthworkfeaturesandbuildingfootingspresent.Theupstandingremainssuchasthe fencestructures,theriflerangebuttandtheconcreteandbrickfootingofthePOW campareexposedtotheelementsandaccordinglyaresubjecttoacontinuousprocess ofweatheringanderosion.Acomprehensivesurveyandrecordingofthesefeatures wouldhelptopreserveforposterityanyfeatureswhichotherwisecouldbelost.Itis notedthattheShootingFieldiscurrentlymanagedashorsepaddocks.Therifle range buttwouldbenefitfrombeingfencedofffromthehorsestohelpprotectitfromany unintendeddamage.Anearthworksurveyofanysurvivingearthworksinthisfield wouldalsohelptomitigateanydamagetothesurvivingearthworkscausedbythe horses. Theconditionofthefeaturesidentifiedinthissurveyneedstoberegularlymonitored through an active and regular programme of site checking, with all site condition records entered onto the Trust’s Heritage Records Online website. Any issues and recommendedactionsshouldbecarriedouttoensurethebestpossibleconditionand survivalofarchaeologicalfeatures.OnotherTrustpropertiesthishasbeenundertaken by volunteers recruited and trained to carry out this task and Osterley should be subjecttoasimilarprocess. Whereinvasiveworksareproposedonthepropertysuchasexcavationsforservices, buildingalterations,treeplantingworks,consultationshouldfirsttakeplacewiththe NationalTrust’sarchaeologisttoavoidorminimiseanyadverseimpact,oratleastto allowforappropriatemitigationworkssuchasawatchingbriefto becarriedout.Itis particularlyimportantthatanyexcavationsproposedinthevicinityofthehouseand outbuildingsaresubjecttoearlyreferralandscrutiny.Anyproposalsassociatedwith

©OxfordArchaeologyLtd 32 13May2020    OsterleyPark,Hounslow1 drainingordesiltingthelakesshouldalsobethesubjectofareferralastheseare knowntocontaintheremainsofatleastonebridgeandbanksidestructuresonthe MiddleLake.Anysurveysorreportsarisingfromsuchworksshouldbeaddedtothe Trust’s HBSMR and to other  appropriate archive repositories such as the Trust’s consultancyfoldersinordertoformapermanentandwidelyaccessiblearchive.  10.2 OpportunitiesforFurtherResearch,FieldworkandEnhancement Glover’s17thcenturymapshowsalargepondintheareaofPondFieldandnorth meadows.ThepondhadgonebythetimeofRocque‘s1741mapsuggestingithas beeninfilled.Archaeologicalinvestigationofthisareamighthelptoclarifythenature andextentoftheformerpond.Earthworkremains(OA179)possiblyassociatedwith thesquarepondsshownonRocque’smaparerecordedontheeasternbankofMiddle Lake.Theseremainscouldnotbeobservedduringthesitewalkoversurveyduetothe existingplantcover.Furtherinvestigationofthesefeaturesfollowingtheclearanceof theplantgrowthmay helptoconfirmwhethertheseremainsareindeedarelicofthe earlierformalgarden.Roque’ssurveyalsomakesclearthatanumberofformalponds andavenuesexistedinthe20acreenclosuresouthofthehouse.Thesewereprobably partlysubsumedwithinthegardenlakewhenitwascreatedinthesecondhalfofthe 18thcentury,however,geophysicalsurveysofthelawnseast,southandwestofthe mansion may help to identify surviving evidence of these ponds and might also determine the precise nature and location of whatever defined this rectangular enclosureandwhatlaywithinit. AdroneͲmountedphotogrammetricsurveyfollowedbygeophysicalsurveyinthearea oftheSecondWorldWarhospitalandthePOWCampcouldhelptoclarifythelayout ofthestructuresintheseareasandcouldhelptoconfirmthepresenceorabsenceof below ground archaeological remains within Hospital Field. Very little if any documentaryresearchhasbeencarriedoutonthehospitalorPOWcampsandasa consequence little is known about who built and ran them and at what dates. An extensivesearchofmilitaryarchivesisthereforerequiredtotellthestoryoftheselittle known sites. Survey in the Indian Clump would also be useful in confirming the presence of the garden enclosure (OA 25) shown on Rocque and the presence or absence of the small building (OA 171), which appears as a parchmark on aerial photographsofthesesite.Surveyoftheareascontaining thekennelsandthetower whichappearonGlover’smapmayalsoclarifywhethersurvivingremainsofthese buildingssurvivewithinthepark.Theirpreciselocationshaveyettobeidentified. ElsewherewithintheGreatMeadow,earthworksremainsofthe18thcenturyformal garden (OA 39) have been recorded. Geophysical survey in this part of the Great Meadowwouldhelptoclarifyifanybelowgroundremainsassociatedwiththeformal gardensurvive. Previousgeophysicalsurveyshavesuggestedthatextensiveremainsoftheforecourt wallsandassociatedbuildingsasshownbyRocquesurviveunderthecurrentforecourt andextendontotheNorthͲEastMeadow.Amoredetailed0.5mintervalresistivity survey is required of this site, together with magnetometry surveys and ground

©OxfordArchaeologyLtd33   13May2020    OsterleyPark,Hounslow1 penetratingradar.Theresultsofthesurveyscouldbebackedupbylimitedtargeted excavation. Restorationofthe18thcenturyOrangery(OA34)destroyedbyfireinthe1950shas beenproposedonanumberofoccasionsandshouldthisbecomeafirmproposalit shouldbeprecededbygeophysicssurveysandtargetedexcavationtodeterminethe precisefootprintforthebuilding,togetherwithassociatedlandscapingevidence. DuetothetransitorynatureofSecondWorldWarmilitaryremainssuchasthehospital andPOWcampthereareoftenveryfewwrittenrecordsorarchives.Anoralhistory recordingprojectassociatedwiththeWWIIheritageofOsterleyParkwouldhelpto identifyanydocumentsandphotographsassociatedwiththese remainsandcould enhance the historic interests of these features. The installation of an information board adjacent to the footpath passing the POW camp and Shooting Field would enhance these remains, allowing the WWII landscape within the site to be better understood.

11 CONCLUSION ThesitecoversthesouthernpartofOsterleyParkandfallsentirelywithintheGrade II*registeredparkandgarden.Thisstudyhashighlightedthatthesitehasamoderate potentialtocontainPalaeolithicfinds,alowpotentialtocontainMesolithicsitesand finds,amoderatepotentialtocontainNeolithicfinds,alowtomoderatepotentialto containBronzeAgesitesandfindsandalowpotentialtocontainIronAgeandRoman sitesandfinds. Duringthemedievalperiodthesitewasprobablyinuseaswoodland,althoughthere issomeevidence,intheformofsurvivingridgeandfurrowearthworksandheadlands, thatitmayhavebeencultivatedinparts.Thesiteisconsideredtohavepotentialto contains further earthworks and archaeological features associated with medieval cultivationpractices. Sinceitsemparkmentinthe16thcenturythesitehasbeenmanagedasacombination ofagriculturallandandparkland.Ithasbeensubjecttoseveralphasesoflandscape designwhichhavechangeditfroma16thcenturydeerparktoan18thcenturyformal garden and later into 18thͲ19th  century landscape park.The current park largely reflectsthelayoutofthe18thand19thcenturylandscapepark. AspartofthisassessmentareviewofEnvironmentAgencyLiDARdata,NationalTrust aerialphotographsandGoogleEarthimageryhasbeencarriedoutinordertoclarify thepotentialforandpresenceoffeaturesassociatedwiththeearlieriterationsofthe park.Thisstudyhasidentifiedanumberofearthworkswithintheparkrelatingtothe earlierphasesoftheparklanddesign,includingearthworkremainsofthe18thcentury formalgarden,earthworksassociatedwiththedifferentalignmentsofOsterleyLane andevidenceofthe16thcenturyparklandboundary. DuringtheSecondWorldWarpartsofthesitewereutilisedasaShootingRanging,a POWcampandahospital.Evidenceofthesestructuresarevisiblewithinthecurrent landscape as earthwork remains, fence lines and building remains. The site is

©OxfordArchaeologyLtd 34 13May2020    OsterleyPark,Hounslow1 consideredtohaveahighpotentialtocontainfurtherunidentifiedremainsfromthis periodoftheparkshistory. Thearchaeologicalremains,upstandingearthworksandsurvivingstructureswithin the site are considered to make a significant contribution to the archaeological, historicandarchitecturalinterestsofOsterleyParkandwouldbenefitfromaplanned programmeofarchaeologicalinvestigation,managementandrecording.

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APPENDIXA GAZETTEEROFKNOWNHERITAGEASSETSWITHINTHESTUDYAREA Abbreviations LB ListedBuilding  SM ScheduledMonument NT NationalTrust FS Findspot RPG RegisteredParkandGarden RB RegisteredBattlefield MON Monument CA ConservationArea WHS WorldHeritageSites BLD Building KnownHeritageAssetswithintheStudyArea



OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 1 152205 MLO85541 1189780 Grade I LB BLD Doric AsmallDorictemplebuiltofPortlandstoneandlimewashed,situatedonthenorthͲwestcornerofthe National Temple,Osterley Pleasure gardens at Osterley. The building has a projecting portico of four Roman Doric columns which significance Park supportapediment.Theinnerwalloftheporticoincorporatesacentralpedimenteddoor,flankedbydouble hung sash windows, which in turn are flanked by four Doric pilasters. The roof is slate. The Rococo plasterworkoftheinteriorwasheavilyrestoredinthe1930sbutisbasedontheoriginal 18thc.ceiling.The medallionheadsarethoughttosymboliseartliteratureandtheseasonsTheirscrollframeswithcrossed branchesincorporateanimalheads,whichrepresentthefourelements.TheDoricTemplewasoriginallypart oftheformalgardentothenorthͲwestofthehouse,terminatingthewestendofashortavenuerunning awayfromthewestsideoftheformerWildernessGarden.SinceitdoesnotappearonRocque’smapof1741, itmusthavebeenerectedsoonafterthisdateforSamuelChild,inthelate1740sorearly1750s.Tradition suggests that it was built in the 1720s to the designs of John James. However, its omission from the Rocquemapdoesnotsupportthissuggestion. 2 152204 MLO85403 1080309 Grade I LB BLD Garden TheGardenHouseisanIonicTemple,builtinc.1775asaconservatoryforthePleasureGardensonthenorthͲ National House,Osterley westcornerofthehouse.ThebuildinghasasemiͲcircularfrontincorporatingfivelargesemiͲcircularheaded significance Park(AviaryofLittle doublehungwindowsflankedbypairedpilasters.Therearenarrowerwindows,eachofeightlights,between Orangery thepilasters.Betweenthewindowheadsthereareplastermedallionscontainingfestivefigures.TheWelsh slateroofispartiallyconcealedbyabalustradedparapet.Originallythereweresphinxesatr eithe endofthe parapet.The194NationalTrustreportnotedthatithaduntilrecentlybeenusedasanaviary.Itwasdamaged bybombinginWWII.Repairscarriedoutin1993andin2001.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 3 152200 MLO85402 1080308 Grade I LB BLD House,Osterley SituatedinthecentreofthesiteOsterleyParkHouseconsistsofredͲbrickwingsofthreestoreysarounda National Park raisedcourtyardwithatallerbricktowerwithstonequoinsandogeecapprojectingateachoutercorner. significance ThecourtyardisenteredthroughagrandIonicporticoontheeastside.Theporticostandsattheheadofa flightofstepsandprovidesanentrancetothestateroomsonthefirstfloor,thisbeingonalevelwiththe courtyard.Onthewestsideofthe houseacurveddoublestaircaseleadsdownfromapedimenteddoorin thefirstͲfloorgallerytothegarden.ThemansionoverlookstheeastlawnwithviewstotheMiddleLake (Historic England list description).  ThefollowingaccountisabridgedfromtheTrust’s1994guidebooktoOsterleyPark(EileenHarris).BrickͲ builthousec.1575forSirThomasGresham,founderoftheRoyalExchange,replacinganearlierfarmhouse describedbyGreshamashis‘poordowsehowseatOsterley’.GreshamacquiredtheOsterleyestatein1562 andwithinthreeyearshadimparked600acresstretchingfromOsterleyLaneto theoutskirtsofHeston village.ThecourtyardsofGresham’shouse,asshownontheMosesGloverplanof1635,occupiedthegreater partofthelawnbetweenthehouseandthepresentdrive.Basedonthisplanitwouldappearthelayoutof Gresham’s house was very similar to today, excluding the corner turrets: nearly square with a central courtyardsurroundedbyapassageorloggia.Intheinternalanglesofthecourtyardwerefourtallturrets, almostcertainlystairturrets,risingwellabovetheroofforbetterviewing,andshownbyGlovercarrying banners.Thehousehadtwostoreysandanatticwithprojectingendbaysontheprincipalfrontwhichfaced ontoafountaincourt(archaeologicalevidenceforthisfountainwasapparentlyfoundin1993butthebrief notespreparedbytheNationalTrust’sarchaeologisthavenotbeenwrittenup).Aninventorytakenin1668 aftertheddeathan thethenownerSirWilliamWaller,lists46rooms,includingtwopassages,‘inner’rooms andan‘UpperGallery’ontwofloors.Inthe17thcenturythecourtyardswerereplacedbyacanalandformal avenuestretchingtoOsterleyLane.Worksundertakenlaterc.1689/90byNicholasBarbonarethoughtto haveincludedpullingdownthecourtyardstairturretsandreplacingthemwithtwoexternalturretsonthe westfront,andalsoalterationstothestablesblock.Somelate17thcenturydoorsandwindowscanbeseen invariousroomsonthegroundandchamberfloors,butthere isnocertaintythattheyareintheiroriginal locations. ThehousewasextensivelyremodelledforFrancisChild,awealthyLondonBankerafterheinheritedthe estatein1756.Rocque’splanof1741showsthewestfrontofthehousewiththeBarbon(?)towersatthe angles, andtheeastfrontwithprojectingwingsalignedonthecentralavenue.SamuelChildisthoughtto haveremovedthesewingssometimebetween1740and1752,addingtheangleturretssimilartothoseon thewestfront.RobertAdam’sinterventionsatOsterleycovertheperiodfrom1761Ͳ65,however,priorto thisanumberofsignificantalterationsweremade.TheheightofthehousewasraisedbySirFrancistocreate aproperthirdstoreyinplaceofthedormerͲwindowedattic.ThisallowedthefirstfloortobecomethepianoͲ nobileandtheprincipalentrancewasmovedupfromthegroundfloor,whichhenceforthwasusedasa basementforservices.Theentrancehallwasplacedinthecentreoftheeastfrontandreachedbyawide perronorflightofsteps.Pedimentswereadded,probablyonallfourfronts,althoughonlythoseontheeast andwest frontremain.OtherworksundertakenbySirFrancisincludedtheformationofalibraryoverthe entrancehall,theinsertionofVenetianwindowsatbothendsoftheGallerythoughttobeinthewestrange, shorteningthechamberwindows,reroofing,installingwaterclosetsintheturretsandalteringvariousjoinery and chimney pieces. AfterFrancis’deathin1763,hisbrotherRobertamendedandcarriedforwardAdam’sbuildingschemes.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type Adam’schallengewastobringthe‘botched’ElizabethanpileintolinewithfashionableneoͲclassicaltaste andtodothisheretainedbutreͲfacedthefourͲturreteddesignofthehouse,asshownontheGloverplan. Hedemolishedtheexistingeastfront,includingthenewlibrary,andreplacedthis, probablyin1764,with whatiswidelyconsideredtobeoneofthefinestporticos(Ionic)inEngland.ThiseffectivelyforeͲshortedthe lengthofthenorthandsouthfrontsandtransformedthehousefromacourtyardplantoaUͲshapedplan. ThecourtyardwasraisedtothesamelevelsoastoenabledirectentryintothenewͲfirstfloorHall.Basement windowswereaddedatthetopofthepassagestoallowlightandthepassagefloorswereraised.Theinterior hasafewrooms retainingearlyGeorgianfeatures,therestredecorated1765Ͳ77,includingtheDrawing RoomandEatingRoom,theLibrary,Hall,bedroomsanddressingrooms.TheStateApartmentatOsterleyis theonlysurvivingexampleofthehighwatermarkofAdam’sinteriordecorationcompletewiththefurniture hedesignedforit.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 4 152201 MLO85764 1358341 Grade I LB BLD Stables & ThefollowingshortdescriptionistakenfromtheconservationplanforthestablespreparedbythePaulDrury National Brewhouse, partnership(2009).Nordenin1593calledOsterleyahousebeseemingaprince,builtofbrickandsaidtobe significance Osterley Park and completedabout1577.Takenwiththeearlierevidence,thisimpliesaninitialphaseofbuildingactivityon House thehousec1560Ͳ65,andanothersayc1570Ͳ77,although,inreality,thesemaysimplyrepresenttheendsof aspectrumofincrementalwork.Thankstodendrochronology,thestableblock,aswillbeseen,cannowbe datedtoc1566,withalterationandtheadditionofthenorthͲeastrangec1568,bothphasesthusfallingin years between royal visits (1564, 1565, 1567, 1570, 1571, 1574, 1575, 1576 and 1578).  While the walls of thin red bricks, steeply pitched tiled roofs and mullioned and transomed windows immediatelyindicateaTudororStuartorigin,evenacursoryglanceatthebuildingsuggestsaverycomplex constructional history, with many obvious blockings of doors and windows, and the rebuilding of entire sectionsofwalls.Adescriptionofitscurrentform thereforefollows,toassistdiscussionoftheoriginalform and subsequent development of the building.  AlthoughalignedonanorthͲnorthͲwest/southͲsouthͲeastaxis,foreaseofreferencewehaveassumeda notionalnorth,facingnorthͲnorthͲwest.Thebuildingitselfconsistsofthreelongnarrowranges(thewest, northandeast),arrangedinahalfͲHplanaroundacourtyard,withaslightlysmaller,thoughstillnarrow, range(thenorthͲeast)attachedtothenorthͲeasterncorner.Internally,thewestrangeisdividedatfirstfloor levelintoresidentialaccommodation(atthesouthend,knownasthewestflat)andoffices(atthenorth end).Thegroundfloorisdividedintofourspaces:tothenorth,aroomgenerallyknownasthebrewhouse, nowfittedoutasameetingroom,butpreviouslyusedasaconservationworkshop(and,priortothat,asa brewhouse).Inthecentreisaworkshop(asof2019asecondͲhandbookshop),convertedfromacoachhouse inthe19thcentury.Adjacentisaninterpretationspace,situatedinaformercoachhousewithlargedouble doors.Thesouthend,formerlyawashhouse,isnowusedasanartgallery, withanenclosedstairtothefirst floor flat.  Thegroundfloorofthenorthrangeisdominatedbythecentralstable,withtallstallposts,nowusedasa tearoom.Thisisflankedtothewestbyakitchenwitharaisedfloor(inaspaceformerly knownasthebailiff’s office)and,totheeast,bytwosmallerstableareas,oneconnectedtothemainstableandcontainingboth stallsandlooseboxes,andasecondseparatearea,filledentirelywithlooseboxes.Theupperfloorofthis rangeconsistsofacentralhayloft,withofficesatthewestendandaflatattheeastend(knownastheeast flat).Thegroundflooroftheeastrangecontainsafurthersetofstablesatthenorthend,withaverygrand archedscreen,andacoachhouse,withaseriesofthreelarge doubledoors,tothesouth.Thelatterbecame agarageformotorvehiclesduringthe20thcenturyandisnowtheNationalTrustshop.Theceilingofthe stablesisratherhigherthanthatofthecoachhouse,andavaultedpassageseparateseastandnorthranges. Onthefirstfloor,thereisastoragespace,presumablyoriginallyahayloft,abovethestables,andthespace above the coach house is filled with grain bins.  Tothenorthofthestablesisawalledgarden,withenclosinganddividingwallsofvaryingages,whichalso wraps around the west side of thebuilding. A further wall, attached to the east side of the east range, enclosesasmalltriangularcourtyardformedintheangleoftheeastandnorthͲeastranges.Modernpublic toiletshavebeenconstructedbehindthiswall.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 5 152313 MLO85600 1240736 Grade II LB BLD Garden Walls to LateC18orearlyC19.TallwallsofstockbrickinFlemishbondwithslopedcoping.Atintervalsraisedpier Regional North of Osterley buttresseswithstonecaps.Segmentalarchedgateways. significance ParkHouse,Osterley Park 6 N/A N/A 1240735 Grade II LB BLD Osterley Park Circa1780.Stockbrickwithpinkbrickdressings.Parapetfronttotiledroofwithbrickendchimneys.Stone Regional Farmhouse copingtoparapet.Twostoreys,threewindows.Bandateaveslevel.Gaugedbrickarchestosashwindows significance withglazingbars,stonecills.SixͲpaneldoorwithoblongfanlightinlatergabledporch.Rearwingwithbowed end,hippedroofover. 7 N/A MLO85597 1240723 Grade II LB BLD Garden Walls to Late C18 or early C19. Tall stock brick walls in Flemish bond with flatbuttresses at intervals. Buttresses Regional South of Osterley supportbandwithslopedandedgebrickcopingabove.StonecopedpiersflanksegmentͲarchedentrances. significance ParkFarmHouse 8 152252 MLO85835 1390982 Grade II LB BLD Bridge and Boat LocatedatthesouthendoftheGardenLakethisbrickͲbuiltbridgelinkstheperimeterpatharoundthepark Regional House,OsterleyPark withasmallcircularisland,whichperhapsservedasaviewingpointoverthelakeandthepark.Itispossible significance thattheislandmayhavecarriedasmallgardenseat,orperhapssomesortofeyeͲcatchingfeaturewhich couldbeseenatvariouspointsfromtheperimeterwalk.Thedoorwayatthebaseofthestepsprovided accesstothewaterlevelandislikelythataboatwasmooredsomewherebeneaththebridge.Thebridgehas asinglesemiͲcircularspan,withthesoffitofthearchapproximately3metresabovethewaterline.Thereis noparapetandthesurfaceofthebridgeisnowgrasscovered,althoughitmay originallyhavehadagravel surface.Aflightof19concretestepsdescendsthroughthecentreofthebridge,betweenbrickͲlinedretaining walls.Atthebaseofthestepsthereisadoorwaywitharchedbricklintelwhichfacesontothewaterrunning underthebridge.Originallythedoorwayincorporatedawroughtiron(?)gate,whichisnowmissing,although thehingepintlesstillremain,anchoredtoblocksofstonesetintothewestjambofthedoor.Atthebaseof thedoorthereisathresholdpartiallymadeupofflagstones.Itisshownontheestate mapof1832,alsothe 186525ͲinchscaleOSmap.Aslightlyraisedcurving bankonthe east sideoftheisland consistsof clay puddlingdredgedfromthebedofthelakeinthelate1980s. 9 152228 MLO85765 1358342 Grade II LB BLD Entrance lodges to Lodges.Stuccoed.EarlyC19.Seesite70. Regional Osterley significance 10 152315 N/A 1391000 Grade II LB BLD Gate Piers, Osterley Abovethemouldedcapsareplainlowblocks,risingupwardstothecentre:thesesupportedlanterns,shown Regional Park as in situ in photographs up to the 1980s. Attached to either side are short runs of contemporaneous significance spearheadedrailings,formerlywithgates(again,showninsituin1980sphotographs)connectingwiththe adjoininglodgebuildings(q.v.).HISTORY:thesepiersareshowninadrawinginSirJohnSoanesMuseum, entitled‘ElevationofaGateandLodgesforOsterleyPark.OneoftheSeatsofRobertChildEsq’.Theypossess Adams’characteristicelegance,andhisrelianceonRomansources:thepateraeandshapeofthepiersecho theformofsacrificialaltars.ListedasfinelandscapefeatureswithintheimportantparklandoftheOsterley Estate,whichisGradeII*ontheHistoricEnglandRegisterofHistoricParksandGardens.Thelodgesandgates securedtheeasternapproachtothepark;thelodgesweresubstantiallyalteredinthemidͲC19. 11 N/A MLO85667 1260997 Grade II LB BLD Wyke Gardens, C18.Brownbrick.Redtileroof.Parapet.2storeys.3windows,flushframes,segmentalarches,glazingbars. Regional WykeGreen Bandbetweenstoreys.Moderndoorwithrectangularfan.Lateradditionstorear. significance

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 12 152265 MLO59217 1000287 Grade II* LND OsterleyPark ThefollowingisextractedfromtheHistoricEnglandlistdescription.C18landscapeparkandpleasuregrounds RP&G laidoutonthesiteofanearlierformalgarden,withsubsequentadditionaltreeplantingbeingundertakenin National theC19andC20.Theparkandgardensurroundingthehousewereextensivelyalertedduringthetimeofthe significance rebuilding(1750Ͳ60s),theformalgardens(asshownonRocque’smapof1746)beingreplacedbyaninformal park(enclosuremap1818).ThedesignoftheparkhasbeenattributedtoMrsRobertChildandhersteward, MrBunce(Tait1980).In1804RobertChild’sgranddaughter,LadySarahSophiaFane,whohadinheritedthe estate,marriedthe5thEarlofJersey,thusOsterleycameintothepossessionoftheJerseyfamily.Extensive treeplantingwasundertakenthroughouttheC19,includingseveralgroupsorislandsoftreesintheparkand boundaryplantings.TheearlypartoftheC20sawanincreaseinflowerbedsandshrubberiesaroundthe housealongwithfurthernewtreesinthepark.DuringtheSecondWorldWarafieldtotheeastoftheSouth Avenuewasmadeintoallotmentsandtheparkwasgivenovertobeefcattleandhay.Theperiodbetween 1940and1980sawthegradualdisappearanceoftheparkfencesandtheelmtrees(someplantedbefore 1740),victimsofDutchelmdisease.In1949theninthEarlofJerseygavethehouse and57haoftheestate to the National Trust, and a further 77ha were acquired by the Trust in 1990. The Trust retain (2000) ownership of these 134ha. The remainder of the park is in private ownership.  Thefollowingisabridgedfromthe1994guidebooktoOsterleyPark(EileenHarris).Osterley’s‘wellwooded’ park‘garnishedwithmaniefaireponds‘hasalwaysrankedhigherthanitsgarden.Indeed,inMosesGlover’s survey(1635)thereisnogarden,noteveninthefountaincourtinfrontofthehousewhereonemightbe expected.Thehouseissimplysetineanenclosur oftwentyacresofpasturewithanavenueoftreesonthe westside.What(John)Rocquefoundwhenhecametodrawhismap(ofLondon)in1741couldnothave been more different. The grounds had been laid out in imitation of Hampton Court with a grandiose patted’oie(‘goosefoot’)oftreeͲlinedavenuesradiatingfromadoublesemiͲcircleoftrees.Nearerthehouse wasawalledkitchengardenandformalwildernessgardenonthenorthside,anovalbasinontheeastfront, andalongcanalonthewestwithmoreavenuesstretchingfromitintothatpartofthepark.Theformalplan suitedtheflat,openterrainperfectly.ItwasalmostcertainlyexecutedforSirFrancisChildtheYoungerto whomRichardBradleydedicatedthesecondpartofhisFruitgardendisplayedin1732.Theroyalgardener HenryWise(1653Ͳ 1738)comestomindasapossibledesigner,asheandhispartner,GeorgeLondon,had suppliedtheelderSirFranciswithtreesforhisgardenatParsonsGreen.However,itseemsunlikelythathe wouldhavecreatedsuchaclosecopyatOsterleyofhisworkforWilliamand MaryatHamptonCourt.The transformationoftheformalgardenintolandscapedpleasuregroundswasagradualprocessbeguninthe early1760sbyFrancisChildandcompletedoverthenexttwentyyearsbyhisbrother,Robert.Pondsand canalswerethrowntogethertoformthreelong,narrowlakeswhich werejuxtaposedinsuchawayasto givetheappearanceofarivercurvingroundthehouse.Thepleasuregardenwasextendedandlaidoutin thelatestfashionwithlawnsandpasture,clumpsoftreesandshrubbery,andashadedgravelwalkdotted withflowersencompassingthewhole.Whothedesignerwasisnotknown.Gardenbuildingsaddedincluded theDoricTemple(152205)terminatingtheavenuewestoftheWilderness,thoughthisisbelievedtodate fromthelate1740sorearly1750sasitisnotshownonRocque’s1740smap.AlargepedimentedDoric Orangery(152266)wasbuiltbyRobertAdamin1763Ͳ64.InAdam’stimeitwasknownasthe‘greatgreen house’todistinguishitfromthesmaller‘GardenHouse’(152204)whichwasbuiltinthe1780s.OsterleyLane becamethemaindriveandin1777newentrancelodgesandgatesdesignedbyAdamwerebuiltatthe junctionwithWykeGreen.Thiswasfollowedin1777byadesignforarustic,stonebridgewithasinglearch,

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type which was built across the narrow end of North (Lower) Lake, connecting the ‘old great park’ and the ‘menageriepark’(notNT).ManyothergardenbuildingswereerectedforRobertChild,mostofwhichhave vanishedwithouttrace,includingapaintedsummerhouse,asecondsummerhousewhichwaspossiblythe ‘ChinesesummerͲhouse’,apineͲhouseinthepinetumneartheOrangery,adogkennel,adeerͲhouseanda windmill.Plusvariousmoveablealcovesaseatswhichwerebroughtoutinsummerandhousedinwinter. Theprincipalattractionwasthemenagerie,asmallwoodedandwalled‘parkwithinapark’ontheeastbank oftheNorthLake,reachedbyaropeͲdrawnferryͲboat(notNT).Apartfromthemenagerie,theparkwasnot muchadmired,beingtooflatanddullformosttastes.Walpolethoughtit‘theugliestspotofgroundinthe universe’.Butthatwasin1773,beforeanyserioustreeplanting.AyearlaterfourcedarsofLebanonwere purchasedinpotsforthesouthsideofthehouse,andin1780and1781twentyblackAntiguapinesand approximately3,000treesofothersortswereplantedwithfencingroundthem.No doubttheappearance oftheparkwasmuchaltered,butwhetheritwasmuchimprovedisanothermatter.Tosomethelarge numberoftrees,whichgreatlyincreasedinthenineteenthcentury,onlyaddedtothe‘airofseclusionand langour’,althoughthe7thEarldidaddrarespeciestothecollection.InhisshorttimeatOsterleythepresent Lord Jersey(9thEarl)didmuchto openupvistasbyreplacingthe evergreenVictorianshrubberieswith flowers.HereroutedthedrivefromtheJerseyRoadLodgetocreatefromitadirectviewofthefrontofthe house andincorporatedalargerosegarden(152281,thedrivewasremovedandtheformerdriveroute reinstatedbytheNationalTrustin199?).Healsoplantedadoubleherbaceousborderbetweenthewallof the kitchen garden and the back of the semiͲcircular Adam Garden House.  TheM4,builtin1965,hashadasavageeffectonthepark,buttheNationalTrusthasbeenworkingtoreturn ittoitsearlierstate.TheGreatMeadowisnowreferencedfollowingtheevidenceonnineteenthͲcentury plans,andtheareahasbeenrestockedwithLimousincattle.Plansare inprogresstoreinstateagardenof the1820sͲ30saroundtheGardenHouse(completed1992).Thepleasuregroundswillcontinueintheform ofawalkaroundthegrazedareaoftheGreatMeadowwhichprovidesaccesstothegardenlake.Allthese featureswillberestoredtotheireighteenthͲcenturyform.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 13 152264 MLO68766 N/A Local FS Find spot of five Thisfindspotforthefivehandaxesandthetwelveflakes(presumablyflint)isrecordedintheGreaterLondon significance handaxes and SitesandMonumentsRecordmaintainedbyHistoricEngland(siteno.053014).TheSMRinturnhasgained twelve flakes, Pond thisinformationfromDRoe’s‘GazetteerofPalaeolithicSites’(1968(1)whichwasproducedbytrawling Field,OsterleyPark throughtheBritishMuseumandtheMuseumofLondoncollections.Itisthereforeassumedthattheartefacts arehousedinoneofthesetwomuseums.Thegridreferenceisonlytosixfiguresi.e.accurateonlyto100 metresbutsuggeststhatthefindspotwasthenorthernendofPondField. 14 152247 MLO2906 N/A Local FS FlintFlakesfoundin ThisfindspotforacollectionofrejuvenationflakesappearsontheGreaterLondonSMRmaintainedby significance the Long HistoricEnglandatgridref.TQ14427742andasref.number050401.Thegridreferenceplacesthefindspot Meadow/Scratedge justinsideOsterleyPark,inthefieldknownasLongMeadowandScratedgePark.Littleisknownaboutthis Park,OsterleyPark site,althoughtheflintswerefoundbya‘RGLancaster’.Systematicfieldwalkingisthereforerequiredto identifythepreciselocationandnatureofthisfindspot. 15 152267 MLO218 N/A Local FS Find spot of Anassemblageofflint(?)handaxes,cores,flakes,roughoutsandachopperrecordedintheGreaterLondon significance handaxes, cores, SMR(siteno.050110).Unfortunately,theprecisefindspotremainsuncertainandonlyafourfigurereference flakes, roughouts isgivenintheSMRwhichisaccurateonlytoakilometre.Furtherresearchisthereforerequiredtoidentify and chopper, thewhereaboutsoftheseitemsandtodeterminetheirdate,provenanceetc.Theseitemsappeartobeeither OsterleyPark intheBritishMuseumorMuseumofLondon.ThegridreferencegivenbytheGLSMRliesslightlytothesouthͲ westofOsterleyParkanditislikelythattheseitemswerenotfoundonNationalTrustProperty,although theaddressgivenisOsterleyPark. 16 152286 N/A Local FS Flint scraper (?) Smallflinttool,possiblyascraper,foundbyavisitorͲJanThurstonͲin2008inamolehillintheGreat significance found in the Great Meadowjustbehind(upslope)ofthepumpingstationatthenearendofthelake.Acrudesketchwassupplied Meadow, Osterley bythisladyandhasbeenretainedwiththeactualflint,whichisheldatOsterleyPark.Acopyofthesketch Park alsoformspartoftheOsterleyArchaeologicalArchive.TheflintiswedgeͲshaped(i.e.threesided),measuring 24mmsinlengthand21mmsinwidth,andhasabulbofpercussiononitsrearface.Thereisevidenceof retouchingontwooftheedges. 17 152263 MLO68784 N/A Local FS Neolithic chipped According to the Greater London Sites and Monuments Record maintained by Historic England (site no. significance flint axe found in 053018) a Neolithic chipped flint axe was found in the northern half of Forty Field in 1927. No further FortyField,Osterley informationisavailableandthewhereaboutsoftheaxeisunknown. Park 18 N/A MLO63770 N/A Local FS OSTERLEY Unstratifiedandresidualworkedandburntflint,recordedinthenorthͲeastcorneroftheallotmentsduring significance ALLOTMENTS, an evaluation carried out by the Museum of London Archaeological Service (March 1993). Dated to the NeolithicͲBronzeAgeperiods. 19 Void Void Void Void Void Void Void 20 N/A MLO2164 N/A Destroyed MON M4 Motorway RectilinearcropmarkenclosuredestroyedbyM4Motorway {Rectilinearfeature} 21 152288 N/A N/A Local FS Roman brooch and RomanbroochandcoinfoundatOsterleyParkbyformercarparkattendantRobChambersinlate1990s, significance coin found in locationsunrecorded.ThebroochisdescribedbyNeilMacGregoroftheBritishMuseumasakneebroochof OsterleyPark 2ndͲ3rdcentury.Thesefindsstoredinthehouse.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 22 152245 N/A N/A Local FS Findspot of AfindspotforapieceofassemblageofbuffunglazedmedievalpotteryappearsontheGreaterLondonSMR significance Medieval Pottery in (maintained by Historic England) as site no. 050400 and at grid reference TG 14497743. This places the the Long assemblage just inside the southͲwest boundary of Osterley Park, within the field known as The Long Meadow/Scratedge MeadowandScratedgePark.ThepiecewasapparentlyfoundbyBLancaster,andpresumablybeforethe Park,OsterleyPark Trust acquired this section of the park in 1996. It is assumed that this assemblage originates from the medieval settlement of Hamlet and Scratedge. The field is currently under arable cultivation and large amounts of post medieval pottery and tile can be picked up in this field. It therefore needs to be systematicallyfieldͲwalkedtoseeifthemedievalsettlementcanbeemor accuratelylocated. 23 152279 N/A N/A Local MON Headland in Pond Thisbank,measuringapproximately7metresinwidthandnomorethan0.1Ͳ0.2metresinheight,runseastͲ significance Field,OsterleyPark west,onaslightlycurvedalignment,acrossthelowerhalfofthemeadow.Itfollowsthecourseofaslight hollowinthelowestpartofthefieldandcanbetracedacrossthewidthofthefield,beginningonthewest sideofthefieldclosetotheavenuefromDevonLodgetoOsterleyHouse.Thoughveryfaint,itcontinuesin aneasterlydirectionbeyondtheeastmarginofthefield,acrosstheavenuefromJubileeLodgeandintothe NorthͲEastMeadow.Itisverydifficulttotraceinthemeadow,butitprobablycontinuesallthewayacross tothewesterntipofthelake.Thisheadlandislikelytobeassociatedwiththeridgeandfurrowtraceableon theeastsideofthemeadowatgridref.TQ14747825(siteno.152218).Indeed,whatappeartobeveryfaint ploughed strips still remain on either side of the headland, centred on grid refs. TQ14537843 and TQ14557833.Thoserunningontothesouthsideoftheheadlandareprobablytheendsoftheridgestraceable ontheeastsideofthemeadow.Itislikelythatthisheadlandandtheassociatedridgeandfurrowarethe remainsofalatemedievalopenfieldsystemformerlyoperatingwithintheparishofIsleworth.Osterleywas emparkedinthe1560sanditthereforeseemslikelytheheadlandandtheridgeandfurrowpredatethis periodofemparkment.Alternatively,thisfeatureisacontinuationof152306andmightrelatetoaculvert shownonanundated‘OldWaterPlan’ofthepark. 24 152217 N/A N/A Local MON Ridgeandfurrowat FainttracesofSEͲNWalignedridgesmarkingcontinuationofmainblockintheNorthͲEastMeadow152218, significance the southern tip of thoughnotvisibleonavailableLIDARdata. Pond Field,Osterley Park 25 152244 N/A N/A Local MON Earthwork running AveryfaintnorthͲwestfacingbreakofsloperunsnorthͲeasttosouthͲwestacrossthenortherntipofthe significance acrossIndianClump filedknownasIndianClump.Itcanbetracedoveranapproximatelengthof210metres,beginningnearto Field,OsterleyPark thegateprovidingaccesstothisfieldfromthemaindriveandcontinuingroughlyparallelwiththepresent northernboundaryofthisfield.ThismayrepresentthelasttraceofaploughedͲoutheadlandassociatedwith an area of ridge and furrow ploughing. However, its location corresponds approximately with the extrapolatedpositionofthesouthernboundaryofthe20ͲacregardenenclosureshownonboththeGlover mapof1635andtheRocquemapof1741.TheformofthisenclosureremainsuncertainͲitmayhavebeen ahedgebutismostlikelytohavenbee awall.Inwhichcasetheslightbreakofslopemightmarkthefooting forthiswall,althoughifthiswerethecasethenthisfeaturewouldshowupasaparchmarkindryweather. Thisfeatureneedstobemorecloselyexaminedandaccuratelyplotted,whenthegrassisshorterandunder conditionsoflowwintersun.TranscriptionofLIDARdatabyOxfordArchaeology(2019)suggeststhatatits southͲwestendthefeaturemayassumeaslightdogͲlegtothesouthandextendforafurther160mtojoin with152243whichisinterpretedasbeingthesouthernedgeoftheparkasshownbyRocque.This160m extensionwouldextendoffthesouthͲwestcornerofthewalledenclosureasshownbyRocqueandasitis notshownbyRocqueitprobablyrepresentsalaterfieldboundaryorperhapsanavenueaddedwithinthe

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type park.Parchmarksrecordedin2018(ENA9104)togetherwithLIDARdatatranscribedin2019suggestthata smallrectangularbuildingc.20minlengthand13minwidthmaystraddlethiscorner(Seesite152304).

26 152218 N/A N/A Local MON Ridge & furrow Thisareaoffaintridgeandfurrowcanbefoundcrossingthefullwidthofthemeadow.Theridgesappearto significance inthe NorthͲEast runESEͲWNW,beginningatapointapproximately30metresfromthewestedgeofthelakeandcontinuing Meadow, Osterley acrossthefullwidthofthemeadowandbeyondthenorthͲeastdrivefromOsterleyLanei.e.c.250.ItsnorthͲ Park south extent measures about 300, commencing at the northern end of the Middle Lake and ending southwardsinlinewiththesouthernendofthelake.Thoughhardtotraceonthegroundtheextentofthis ridgeandfurrowisevidentonavailableLIDARdata.TheLIDARdataalsomakesevidentthatabroadridge runsNEͲSWthroughthecentreoftheridgeandfurrowandastheridgesrunacrossthisfeatureitispossibly anearlierfeatureandnotaheadlandassociatedwiththeridgeandfurrow.Thisappearstobeanareaof broadriggridgeandfurrowsincethegapsbetweenthefurrowsmeasureupto25metres,althoughhaving saidthereismuchvariationinthewidthoftheridgesandinthespacingbetweenthefurrows.Itisonly possibletotraceabout8ridgesontheground.Theeasternendsoftheridgescorrespondwithaslightbreak ofslope,possiblycreatedasalimittowhichtheploughhasreached.Thisis theonlyareaofridgeandfurrow tohavesurvivedwithintheparkthoughthereisapossiblecontinuationat152217.Themeadowisshownas beingunderpastureonGlover’s1635mapanditisalmostcertainthatithadgoneoutofcultivationbythe timethatOsterleywasfirstimparkedinthe1560s.Therefore,theridgesmustbeearlierthanthedateof imparkment.Seesite152279asthispossiblyrepresentsaformerheadlandassociatedwiththeridgeand furrow. 27 152208 N/A 1240723 Grade II LB BLD Walled kitchen Centresectionof18thcenturywalledgardensatOsterleyPark,notownedbytheNationalTrust Regional gardens,Osterley significance Park 28 152206 N/A N/A Regional BLD NewLodge,Osterley DetachedtwostoreybrickͲbuiltlodgewithslateroofandoutbuildingbuiltin1898tocontrolaccesstothe significance Park walledgardensandParkFarm.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 29 152207 N/A 1240723 Grade II LB LND Walled Kitchen Alargerectangularbrickwalledgardenmeasuring133x88metres,probablybuiltinthelate18thcentury Regional Garden (south forthegrowingoffruitandvegetables.ThegardenisorientatedNWͲSEandmeasures133metresinlength significance section),Osterley and88metresinwidth.Itisdividedacrossitswidthintothreeevenlysizedcompartments(seealso152208 Park and152313),withopeningsateitherendofthepartitionwallsprovidingaccessbetweenthecompartments. Someofthewallsretainevidenceofflues,indicatingthattheybuiltasheatedwallsforthegrowingoffruit. Thefollowingistakenfromthe2005parkrestorationplanpreparedbyColvinandMoggeridge.Historical referencestothewalledgardendonotdistinguishbetweentheold,C16thgardennearthestablesandthe newer,largerC18thgardenfurthertothenorthͲwest.Thelatterwaspresumablybeingbuiltaround1776 whenseveralthousandbricksweresupplied(Acc.3752/1/69Ͳ80),andthewallbehindthegreenhousewas beingbuilt(Acc.3752/3/35).AhothouseintheMelonGroundwasalsobeingbuiltatthistimeandthereis also mention of a pine house and hot beds. The garden in 1832 (1832 map) consisted of a rectangular enclosuredividedintothree,withacentralpond,withtwoirregularenclosuresfurthernorthandfurther enclosuresbeyond.Abasoni.e.thepresentcentralpond,wasbuiltin1783(Acc.3752/14/491).In1782a kitchengardencontainedahothousewith‘2TallowTrees,1Mimosa.AllSpiceTree,Ananas,Vinesetc.’with a‘shadebehindthehothouse’with‘allbedsandbedding’.TheGardener’sChroniclein188?Notedthatthe kitchengardenwalls‘arebuiltdoublewitha9inchspacebetweenthebrickwork’.Thegardenwasplanted withpears,plumsandflowerbeds,andtherewasanoldvinery,28yardslong,witha‘greatvine’,aBlack Hamburghthelengthofthehouse.Glasshousesshownonthe1895OShavesincebeenlost.TheNational Trustpurchasedtwothirdsofthewalledgardensin1996.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 30 152210 N/A N/A Regional MON Former course of ThecourseofashallowUͲshapedditchapproximately5metresinwidthrunningnorthͲsouthacrossthe significance Osterley northͲwestcornerofHomeFarmfieldalmostcertainlymarkstheoriginalcourseofOsterleyLanewhich Lane,Home Farm appearsonthe1635andc.1741maps(2).Glover’smapof1635(1)showsthelaneaslinkingthevillagesof Field,OsterleyPark IsleworthandHeston.Onthismap,afterenteringthesouthernboundaryofOsterleyParkitisshownrunning along the east and north edges of the 20Ͳ acre enclosure around Sir Thomas Gresham’s 1570s house, eventuallysnakingawayinanortherlydirectionfromthenorthsideoftheenclosure.Itscontinuationina westerlydirectionacrossthenorthsideoftheparkismarkedbyalineoftreesonGlover’smap.Bythetime ofRocque’s c.1741mapitwouldappearthatthelanehadbeenpushedslightlyfurthertotheeastandaway fromthehousesothatitwasconcealedbyabroadsemiͲcircularavenueoftrees.Itwaseventuallymoved furthereasttoitspresentpositioninthesecondhalfofhthe18t centurywhentheparkassumeditsmore naturalised form.  ThehollowͲwaycanbetracedoveralengthofabout100metres,beginningonthebendontheexisting OsterleyLaneandcontinuinginasoutherlydirectiontothepondwhichliesinthisfield(152209).Theouter edges of the hollow are lined with hawthorn hedges.  ThisisclearlyanimportantrelictfeatureofthemedievallandscapeatOsterley.Itwaspresumablydiverted slightlyinthe1560storunaroundtheeastedgeofthe20ͲacreenclosuresurroundingSirThomas’house, whichwasthenunderconstruction.Previously,itmusthaverunclosetothefarmhousewhichSirThomas acquiredinthe1560s,andwhichisassumedtohavebeenonthesiteofthepresenthouse.Itisimportant thatthecourseofthehollowͲwayanditsprofileshouldberetained.Itshould notbeinͲfilledwithrubbish, vegetationorsoil,anddamagefromvehiclesshouldbeprevented. 31 152250 N/A N/A Regional MON Ditchrunningacross Averyslightditch,approximately160metresinlength,3metresinwidthand10Ͳ20cmsindepth,aligned significance thewestsideofthe northͲwesttosouthͲeast,evidentonthewestedgeoftheGreatMeadow.Itistraceablefromapointslightly Great tothenorthofislandatthewestendoftheGardenLakeandrunsacrossabouthalfofthewidthoftheGreat Meadow,Osterley Meadow.Itappearstohaveaslightlysinuousalignment.Thisfeatureseemstocoincidewiththewestedge Park oftheenclosedparkonJohnRocque’s1740ssurveyofLondon(1).Thesurveydepictsastraightboundary definedeitherbytreesorahedgerow.Theboundarytotheparkmaythereforehaveconsistedofabankand ditchwithahedgeplantedalongthebank.Althoughalmostcompletely inͲfilledthisisanimportantfeature whichneedstobeaccuratelymappedandpossiblyexploredbyexcavation. 32 152209 N/A N/A Local MON Pond,Home Farm Thissmallroughlycircularhollowmarksthesiteofapondshownonthe1832mapandonsubsequent significance Field,OsterleyPark OrdnanceSurveymaps(1865,1896,1920).ItisnotpresentonRocque’sc.1741anditthereforedatesfrom the end of the 18th century, or more likely the early 19th century. It can now be traced as a shallow depressionapproximately20metresindiameteranduptoametreindepthlocatedtowardsthecentreof theHomeFarmField.TheOrdnanceSurveymapsshowthepond aslocatedontheedgeofafieldboundary runningnorthͲsouthwhichformerlydividedthefield.Itisassumedthatthepondwasusedforwatering livestockandperhapshorseskeptinthisfield.Itisalsoconceivablethatitmayhaveprovidedwatertothe nearbywalledgardens.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 33 152213 N/A N/A Regional BLD Avenue DetachedtwoͲstoreybrickͲbuiltlodgewithslateroofandstonesills.Roofhasclayridgetiles,thetilesover significance Lodge,OsterleyPark thegableendsandoverthedormerscarryingroundedfinials.Builtin1888ontheeastsideofthenorthdrive comingoffOsterleyandformingapairwithDevonLodge.AlsosimilartoStationLodge(1885).Thetwolodges havetheprincipalelevationsfacinginoppositedirections,suggestingDevonLodgecontrolledtrafficfrom thesouth,AvenueLodgefromthenorth.TheprincipalelevationisthatfacingnorthͲwestwhichhasan elaborategroundfloorporchrisingfromabrickplinthformedoftimberͲframingwithakingpostframeto thetopofthetruss,theindividualtimberswithchamferededgesandrunͲoutstops.Windowsareofsix lights,theupperwindowsasdormerssetwithintherooflineandcappedbyplainbargeboards.Lintelsare stoneoverthedormerwindowsbutbrickͲarchedlintelforthegroundfloorwindow.ProjectingstoneͲbuilt groundfloorbaywindowonthesouthͲwestelevationoverlookingthedrivewithsixlightsineachfacet.Six lightwindowtofirstfloorroomabove.Rear(southͲeast)elevationhascatͲslideroofoverwhatappearsto be a later single storey extension with two six light windows and large brick chimney suggesting scullery/laundry?DetachedbrickͲbuiltsinglestoreyshedtonorthͲeastappearstohaveservedasprivyand perhapslaundryasithasacentralchimneywithterracottacap.Itisdividedlengthwiseintotworoomsand hastwoverticalplankdoorsinthesouthͲeastelevationandasingleplandoorandwindowinthenorthͲwest elevation.(1)

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 34 152266 N/A N/A National MON Site of Orangery, The following is extracted from the 1994 guidebook to Osterley Park and the 2005 conservation plan significance OsterleyPark preparedbyColvinandMoggeridge.SiteoftheformerOrangeryinthePleasureGrounds,designedbyRobert Adamc.1763Ͳ64.Destroyedbyefir duringWWIIafterastovesetalighttheblackoutcurtains.Ageophysical survey (resistivity) undertaken by the National Trust in 2006 (event no. ENA3924) confirmed that the foundationsofthebuildingarelikelytosurvivebeneaththecurrentgardenpathunderthelargecedartree andcouldthereforeberecoveredbyexcavation.EvidenceastotheoriginalformoftheOrangerycomesfrom aphotographoftheeastelevationtakenduringtheearlypartofthe20thcentury(copyheldaspartofthe NT’sHistoricBoxes).ThisshowsarectangularDoricbuildingwithaprojectingporticoattachedtotheeastͲ facingelevationsupportedbyDoriccolumnsarisingfromalowstoneplinth.TheTrust’sguidebook(1994) suggestsdimensionsof90feetlengthand20feetwidth.Aflightoflowstonestepsleaduptotheportico andthereappearstobeaformalgravelsurroundfollowingthefootprintofthebuilding.Thepedimentabove theporticoisembellishedbyfloralgarlandsandsurroundingwhatappearstobeacentralmedallion.There isacentrallyplacedacroteriaforanurnorstatueandwhatappeartobetwofurtheracroteriaattheendsof thepediment.Between thecolumnsandthepedimentthereisanentablaturerunningaroundthefulllength ofthebuildingembellishedwithtriglyphs.Thetwoendsofthebuildingterminatewithpedimentswithniches below,perhapsoriginallycarryingstatuary.Therearesmallernicheswithgarlandedpanelsaboveattheends ofthe longestelevation.InthebaysbetweentheeightDoriccolumnstherearelargedoubleͲhungvertically slidingsashwindowsextendingthefullheightoftheelevation,eachcasementcontaining25panes.Theroof coveringisrecordedasbeingslateonthesouthslope,claytileonthenorthslope.Insidethebuildingwas dividedintothreewitharoomateachendandacentralOrangery.Inoneroomaleadwaterpumpborethe date1795.ThefloorwaspavedwithPortlandstonelaiddiagonally.In1959thefoundationsandbrickwalls stillremainedafterthefireandthere wasconsideredtobesufficientoriginalplasterworktoenableafair copytobemade.AsecondphotographheldaspartoftheRoyalBankofScotlandarchive(ref.GM/58Ͳcopy heldaspartoftheNT’sHistoricBoxes)showsagroupofsevenstafffromChildsBankrestingonthesteps duringWWII.Itwasusedasateapavilionin1939andhousedtheRAFpaysectioninthewar,whenitwas largelydestroyedbyfireandwaslatercompletelydemolished.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 35 152285 N/A 1000287 Grade II* LND Pleasure Grounds, ThefollowingisextractedfromtheHistoricEnglandlistdescription.C18landscapeparkandpleasuregrounds RP&G OsterleyPark laidoutonthesiteofanearlierformalgarden,withsubsequentadditionaltreeplantingbeingundertakenin National theC19andC20.Theparkandgardensurroundingthehousewereextensivelyalertedduringthetimeofthe significance rebuilding(1750Ͳ60s),theformalgardens(asshownonRocque’smapof1746)beingreplacedbyaninformal park(enclosuremap1818).ThedesignoftheparkhasbeenattributedtoMrsRobertChildandhersteward, MrBunce(NationalTrust1980).In1804RobertChild’sgranddaughter,LadySarahSophiaFane,whohad inheritedtheestate,marriedthe5thEarlofJersey,thusOsterleycameintothepossessionoftheJersey family.ExtensivetreeplantingwasundertakenthroughouttheC19,includingseveralgroupsorislandsof treesinthepark andboundaryplantings.TheearlypartoftheC20sawanincreaseinflowerbedsand shrubberiesaroundthehousealongwithfurthernewtreesinthepark.DuringtheSecondWorldWarafield totheeastoftheSouthAvenuewasmadeintoallotmentsandtheparkwasgivenovertobeefcattleand hay.Theperiodbetween1940and1980sawthegradualdisappearanceoftheparkfencesandtheelmtrees (someplantedbefore1740),victimsofDutchelmdisease.In1949theninthEarlofJerseygavethehouse and57haoftheestatetotheNationalTrust,andafurther77hawereacquiredbytheTrustin1990.TheTrust retain (2000) ownership of these 134ha. The remainder of the park is in private ownership.  Thefollowingisabridgedfromthe1994guidebooktoOsterleyPark(EileenHarris).Osterley’s‘wellwooded’ park‘garnishedwithmaniefaireponds‘hasalwaysrankedhigherthanitsgarden.Indeed,inMosesGlover’s survey(1635)thereisnogarden,noteveninthefountaincourtinfrontofthehousewhereonemightbe expected.Thehouseissimplysetinanenclosureoftwentyacresofpasturewithanavenueoftreesonthe westside.What(John)Rocquefoundwhenhecametodrawhismap(ofLondon)in1741couldnothave been more different. The grounds had been laid out in imitation of Hampton Court with a grandiose patted’oie(‘goosefoot’)oftreeͲlinedavenuesradiatingfromadoublesemiͲcircleoftrees.Nearerthehouse wasawalledkitchengardenandformalwildernessgardenonthenorthside,anovalbasinontheeastfront, andalongcanalonthewestwithmoreavenuesstretchingfromitintothatpartofthepark.Theformalplan suitedtheflat,openterrainperfectly.ItwasalmostcertainlyexecutedforSirFrancisChildtheYoungerto whomRichardBradleydedicatedthesecondpartofhisFruitgardendisplayedin1732.Theroyalgardener HenryWise(1653Ͳ1738)comestomindasapossibledesigner,asheandhispartner,GeorgeLondon,had suppliedtheelderSirFranciswithtreesforhisgardenatParsonsGreen.However,itseemsunlikelythathe wouldhavecreatedsuchaclosecopyatOsterleyofhisworkforWilliamandMaryatHamptonCourt.The transformationoftheformalgardenintolandscapedpleasuregroundswasagradualprocessbeguninthe early1760sbyFrancisChildandcompletedoverthenexttwentyyearsbyhisbrother,Robert.Pondsand canalswerethrowntogethertoformthree long,narrowlakeswhichwerejuxtaposedinsuchawayasto givetheappearanceofarivercurvingroundthehouse.Thepleasuregardenwasextendedandlaidoutin thelatestfashionwithlawnsandpasture,clumpsoftreesandshrubbery,andashadedgravelwalkdotted withflowersencompassingthewhole.Whothedesignerwasisnotknown.Gardenbuildingsaddedincluded theDoricTemple(152205)terminatingtheavenuewestoftheWilderness,thoughthisisbelievedtodate fromthelate1740sorearly1750sasitisnotshownonRocque’s1740smap.AlargepedimentedDoric Orangery(152266)wasbuiltbyRobertAdamin1763Ͳ64.InAdam’stimeitwasknownasthe‘greatgreen house’todistinguishitfromthesmaller‘GardenHouse’(152204)whichwasbuiltinthe1780s.OsterleyLane becamethemaindriveandin1777newentrancelodgesandgatesdesignedbyAdamwerebuiltatthe junctionwithWykeGreen.Thiswasfollowedin1777byadesignforarustic,stonebridgewithasinglearch,

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type which was built across the narrow end of North (Lower) Lake, connecting the ‘old great park’ and the ‘menageriepark’(notNT).ManyothergardenbuildingswereerectedforRobertChild,mostofwhichhave vanishedwithouttrace,includingapaintedsummerhouse,asecondsummerhousewhichwaspossiblythe ‘ChinesesummerͲhouse’,apineͲhouseinthepinetumneartheOrangery,adogkennel,adeerͲhouseanda windmill.Plus,variousmoveablealcovesaseatswhichwerebroughtoutinsummerandhousedinwinter. Theprincipalattractionwasthemenagerie,asmallwoodedandwalled‘parkwithinapark’ontheeastbank oftheNorthLake,reachedbyaropeͲdrawnferryͲboat(notNT).Apartfromthemenagerie,theparkwasnot muchadmired,beingtooflatanddullformosttastes.Walpolethoughtit‘theugliestspotofgroundinthe universe’.Butthatwasin1773,beforeanyserioustreeplanting.AyearlaterfourcedarsofLebanonwere purchasedinpotsforthesouthsideofthehouse,andin1780and1781twentyblackAntiguapinesand approximately3,000treesofothersortswereplantedwithfencingroundthem.No doubttheappearance oftheparkwasmuchaltered,butwhetheritwasmuchimprovedisanothermatter.Tosomethelarge numberoftrees,whichgreatlyincreasedinthenineteenthcentury,onlyaddedtothe‘airofseclusionand languor’,althoughthe7thEarldidaddrarespeciestothecollection.InhisshorttimeatOsterleythepresent Lord Jersey(9thEarl)didmuchto openupvistasbyreplacingthe evergreenVictorianshrubberieswith flowers.HereroutedthedrivefromtheJerseyRoadLodgetocreatefromitadirectviewofthefrontofthe house andincorporatedalargerosegarden(152281,thedrivewasremoved,andtheformerdriveroute reinstatedbytheNationalTrustin199?).Healsoplantedadoubleherbaceousborderbetweenthewallof the kitchen garden and the back of the semiͲcircular Adam Garden House.  TheM4,builtin1965,hashadasavageeffectonthepark,buttheNationalTrusthasbeenworkingtoreturn ittoitsearlierstate.TheGreatMeadowisnowreferencedfollowingtheevidenceonnineteenthͲcentury plans,andtheareahasbeenrestockedwithLimousincattle.Plansare inprogresstoreinstateagardenof the1820sͲ30saroundtheGardenHouse(completed1993).Thepleasuregroundswillcontinueintheform ofawalkaroundthegrazedareaoftheGreatMeadowwhichprovidesaccesstothegardenlake.Allthese featureswillberestoredtotheireighteenthͲcenturyform.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 36 152272 N/A N/A Archaeologic MON Site of 16th c. Approximatesiteof‘yeDoggehouse’shownonMosesGlover’s1635mapofIsleworth(1).Themapshowsin alpotential kennels, Osterley arathersketchyfashionasmallbuildinginthecornerformedbetweentwoareasofwoodlandtothewest Park ofthehouse.Duetothesketchynatureofthemapitisdifficulttobecertainaboutthepreciseformer location,althoughitwouldliejusttothenorthoftheupperendoftheGardenLake.Boththe1832estate mapandthe18651steditionOrdnanceSurveymapshowasmallbuildinginroughlythisposition,although itishighlyunlikelythatthe16thcenturykennelssurvivedforsuchalongperiodoftime.Thesearepresumed tohavebeenthekennelsforthedeerparkatOsterleywhichwascreatedinthe1560s. 37 152254 N/A N/A Regional MON Ditchattheeastend ThisisaslightditchrunningacrossthewidthoftheeastendoftheGreatMeadowonanorthͲwesttosouthͲ significance of the Great eastalignment.Itrunsparallelwiththeexistingironfencedefiningtheeastedgeofthemeadowandis Meadow,Osterley situatedapproximately70metreswestofthefence.Itisaveryslightfeature,survivingtoadepthonno Park morethan15Ͳ20cmsandtoawidthofabout20metres.ItssouthendappearstocontinuealmosttotheinͲ filledIceHouseonthewestedgeoftheGardenLake,whilstinanortherlydirectionitcontinuesacrossthe ends of two eastͲwest ditches (152255) and possibly along the east edge of a slightly raised earthwork, 152256.Beyondthispointitcannotbetraced.Itisassumedthatthisfeaturecorrespondswiththewestedge ofthegardensdepictedonRocque’s1740ssurveyofLondon(1).Thisshowsthewesternboundaryofthe gardenasalonglinearfeatureͲpresumablyawallͲwithasteppedbastionprojectingoutwardsfromthe midͲpoint.Notraceofthis bastioncouldbefoundbutthetwolineareastͲwestditches(152255)doappear tocorrespondwithtwolinesflankingthepondorbasinshownonRocque’splan.Thesurvivaloftheditch maysuggestthatthegardenasshownonthe1740splanwasdefinedbyahahawithawallactingasa retainingwalltotheeastedgeofthehahaditch.Thiscouldperhapsbeconfirmedbyexcavation. 38 152243 N/A N/A Regional MON Fieldboundarybank Locatedtowardsthesouthendofthemaindriveand100metresnorthoftheSouthLodgethisslightbank significance on the main runsacrossthewidthofthemaindriveonaneastͲwestalignment.Itslocation correspondswithafield drive,OsterleyPark boundarywhichdefinesthesouthͲwestmarginoftheparkontheRocquemapsurveyedin1741(1)anditis therefore assumed to be the remnant of this boundary. It also probably corresponds with a major field boundaryshownonGlover’s1635map(2),thoughtherathersketchynatureofthisearlymapmakesit difficulttoreconcilewithevidenceontheground.Thebankmeasures10metresinwidthand30Ͳ40cmsin height.Ploughinghasremovedanycontinuationofthisfeatureintheadjacentfield(‘Allotment’or‘Perkins’ Field), as has ploughing on the west side of the drive in ‘Hospital Field’. However, its southͲwesterly continuation can be traced along the south edge of ‘Indian Clump’ where it is evident as a very slight earthwork.Inthisfieldthereareaseverallargechestnuttreeslocatedslightlytonorthofthekban (e.g.tag no.2049).Therearealsotwolargepollardedchestnutsslightlytothenorthofthesectiononthemaindrive. Thereappearstobearelationshipbetweenthesetreesandtheboundarybank,withthetreesplantedjust offthebank.ThebankisanimportantfeaturesinceitdefinesthesouthͲwestmarginofthepark,possibly datingbacktothe16thcentury.TheRocquemapshowsthebankplantedwithwhatappearstobealow hedge.Thebankwaspresumablydeliberatelyraisedwhentheparkwaslaidoutbutthereisnoevidenceof aditchrunningalongitsinneredge,asonemightexpect.However,aslightditchcanbetracedrunningalong the inner edge of the southͲeast section of the boundary running through ‘Triangular Clump’ (SMR no. 152242).

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 39 152255 N/A N/A Regional MON Parallel ditches on TwoveryfaintditchesrunningacrosstheeastsideoftheGreatMeadowclosetothewestfrontofthehouse. significance the east side of the Eachmeasuresapproximately65metresinlength,beginningjustoutsidethegravelpathonthewestfront Great Meadow, andcontinuingonanorthͲeasttosouthͲwestalignment,eventuallymeetingwithasimilarditch(SMRno. OsterleyPark 152254)alignednorthͲwesttosouthͲeastacrosstheeastendofthemeadow.Thetwoditchesrunparallel toeachotherandareseparatedbyagapof40metres.Eachmeasuresapproximately1.4metresinwidth and0.15Ͳ0.2metresindepth.Itisalmostcertainthatthesetwoditchescorrespondwithtwolinesonthe 1740sRocquemap(1),flankingeithersideofapondwhichformedpartofthe17thcenturyformalgardens. These were perhaps sunken paths, or alternatively planting beds. On the map they are shown as being directlyinlinewiththetwocornertowersofthewestfrontandthisisalsothecaseforthetwoditches.Their precisefunctionanddateoforiginneedstobeestablishedbyexcavationandtheyalsoneedtobecovered aspartofageophysicalsurveyfortheareaofthemeadowoutsidethewestfrontofthehouse. 40 152269 N/A N/A National FS Glazed 16th c. tile Thisfragmentofglazedtilewasfoundsomewhereinthewalledgardenswhenoneoftheflowerbedswas significance found in the walled beingforkedover.Approximatelyhalfofthetilesurvivesi.e.onecornerandoneofthesidesaremissing, gardens, Osterley neverthelesstheoriginalsizeofthetilecanbedeterminedasmeasuring132mms(slightlyover5inches) Park squaresincetwooftheopposingsidessurvive.Ithasafabricthicknessof16mms,thefabricbeingahard, lightbuffcolour.Slightfingerprintscanbedetectedononeside.Theupperfaceofthetilehasahardtin(?) glazewhichcoverswhatisassumedtobeahandͲpainteddesign.Thedesignconsistsofaturquoisecoloured grasshopperpickedoutindarkerbluelining.Thesamebluelininghasbeenusedto createtheborderwhich isinͲfilledwithyellowandhasaborderofirregularinterlinkingswirls.Leafedfoliagepickedoutinyellowlies behindthegrasshopper.ThegrasshopperistheheraldicdeviceusedbytheGreshamfamilyanditistherefore likelythatthetiledatesfrombetween1570 and1580.SimilartileshavebeenrecoveredfromthesiteofNew Hall,LimpsfieldinSurrey.Thetileisheldattheproperty.Asecondfragmentoftilewasfoundinatrenchon the east front of the house during excavations 2020 to lay a heat source pipe from the lake (see event ENA9658).

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 41 152203 N/A N/A Regional MON Walled Kitchen Thewalledkitchengardenslyingimmediatelytothenorthofthehousearefirstshownwithcertaintyon significance Garden, Osterley Rocque’smapof1741.TheymayhavebeenlaidoutaspartoftheformalgardensforSirFrancisChildthe Park Youngerinthe1720s.However,a17thcenturydateseemsmorelikely.ThearchitectforOsterley,IanAngus, hassuggestedthattheeastwallmayhavebeenbuiltinthe16thcenturyandiscontemporarywiththe buildingsinthestableyard.Accountsfortheperiodbetween1775Ͳ81mentionthedeliveryofup650,000 bricksandworkwasstillgoingoninthe1790swhenWilliamFinbeywaspaidforplasteringthe‘Hothouse’. Rocque’smapshowsthegardenasalargerectangularenclosureonthenorthsideofthestables,withapath runningaroundtheedgeofthewalls.Onlyasingleentranceatthesouthendisshown.Onthe1832mapthe interiorofthegardenappearstohavebeendividedintotwolargecompartments,perhapsbyafence?An entrancehadbeenaddedtothenorthͲeastcornerofthegardensandleanͲto buildingsaddedagainstthe eastwall.AsinglefreeͲstandingbuildingexistedclosetothewestwallandnearthesouthentrance.By1865 openingshadbeenaddedatthenorthandsouthendsofthewestwall,providingaccessintothePleasure Gardens. Tothenorthofthestablesisawalledgarden,withenclosinganddividingwallsofvaryingages,whichalso wrapsaroundthewestsideofthebuilding.FirstshownwithcertaintyonRocque’smapof1741,although asalargerenclosuresuggestingonlytheeastandnorthwallswereexistingbythisdate. Itislikelythatthese eastandnorthwallsmaycoincidewiththelargeenclosurewallsshownonGlover’s1635map.Thefollowing isanextractfromthe2005parkrestorationplanpreparedbyColvinandMoggeridge.Theoldwalledgarden adjacenttothestablesisdistinguishedfromthelaterwalledgardentothenorthͲwest(157207).Thegarden wallsare,atleastinpart,oneofthefewsurvivingremnantsofthe1635Gloverlayout,andprobablyrelate totheearlierhouseofthe1570s.The1835and1865mapsshowthegardendividedintwolengthways,but thisdivisionhadbeenremovedby1895whenglasshousesareshownontheinsideoftheeastwall.The1994 NTreport,presumablyrelatestothisgardenwhenitnotes‘Thekitchengardenmeasures90x70yards;well situatedandopen;thereisgoodprotectionfromthenorthandeast.Itisenclosedbygoodbrickwallswhich havegoodsubstance.Thewallshadbeenraisedsome3feetupontheoriginal16thcenturyportion…The northwallhasaglasspentͲroofonthesouthsideprotectingthefruittrees.Thereare7glasshousesinfair order, andmoderatelywellͲpaintedexceptthelargervineryhouse.Orchardfruitiscultivatedtoasmall extentinthekitchengarden’.Thegardenwasusedfromaround1939to1974asatrainingcentreforthe RoyalPark’sgardeners,thenlayunuseduntilrecently,beingtakenbackintouse asanursery,cuttinggarden andworkingareaforthegardens,withateagardenatthesouthernend.Noglasshousesremain.Examination ofLiDARindicatesthatthreelinearfeaturesarepresentwithinthewalledgarden.TwoarealignednorthͲ easttosouthͲwestandarelocatedinthenorthernpartofthegardenandtheotherlinearisalignednorthͲ westtosouthͲeastandislocatedtowardstheeasternboundaryofthegarden 42 152262 N/A N/A Local BLD Siteof19thcentury Excavationsatthebeginningof1994inthestableyardatOsterleyParkrevealedpartofthefootingsforthe significance water tower in the formerwatertowerinthesouthͲwestcornerofthestableyard.Thesewererecordedaspartofawatching stableyard,Osterley briefundertakenbyOxfordArchaeology. Park

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 43 152202 N/A 1358341 Grade I LB BLD Barn, Osterley Park Thefollowingbriefdescriptionisextractedfromthe2009conservationplanforthestablespreparedbythe National andHouse PaulDrurypartnership.Buildingbelievedtodatefrom1567Ͳ8withthefront(south)walloriginatingasa significance gardenwall.ThenorthͲeastrangeisdividedintotwobyacentralcartͲway,abovewhichisapigeonloft.To thewestisanareanowknownasthestudybase,whichisusedforeducationwork,withastoragearea above.Theeasternsectionisdividedintoaecottag fortheheadgardeneratthefareasternend,anda gardener’s bothy, with a store above. A leanͲto store is attached to the north side of this range.  Tothenorthofthestablesisawalledgarden,withenclosinganddividingwallsofvaryingages,whichalso wraps around the west side of thebuilding. A further wall, attached to the east side of the east range, enclosesasmalltriangularcourtyardformedintheangleoftheeastandnorthͲeastranges.Modernpublic toiletshavebeenconstructedbehindthiswall.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 44 152257 N/A N/A Local MON Brick walls in the Excavationsthroughoutthe1990sforvariousserviceslaidacrossthestableyardatOsterleyhaverevealeda significance stableyard,Osterley numberofburiedwallsrelatingtovariousfeatures.Thefollowingisextractedfromthe2009conservation Park planforthe stablespreparedbythePaulDrurypartnership.Anumberofpreviousexcavationshasbeen undertaken within the stables and their immediate surroundings. Although most of these have been undertakeninadvanceoftheinstallationofservices,ratherthanforarchaeologicalresearch,mosthavebeen thesubjectofwatchingbriefsbyacompetentarchaeologist.Observationsarisingfromtheseexcavations have provided valuable evidence about the below ground archaeological potential of the study area, although that evidence has been somewhat difficult to interpret because of the limited extent of the excavations, and the extent of past disturbance. Excavations for tree pits in the stable yard in 1994, monitoredbyOxfordArchaeologicalUnit(OAU),revealedaseriesofbrickculvertsof17thor18thcentury daterunningacrosstheyard,andanoctagonalbrickplatformofuncertaindateorfunctionroughlymidway betweenthehouseandstables.Aservicetrenchrunningeast Ͳwestbetweenthesouthendsoftheeastand westrangesrevealedbrickfoundationsforanoctagonalwatertowerabuttingthesouthendofthewest range,shown on19thcenturyplans.OAUalsomonitoredexcavationsforlayingfoundationsintheeast courtyard,whichledtothediscoveryofabrickyardsurfaceofprobable18thcenturydate.Threeearliertree pitsmonitoredbyAngusWainwright(1991)revealedseverallayersofhoggin,possiblydatingfromtheTudor period.Wainwrightsuggeststhattheevidencepointstowardstheyardsurfacebetweenthehouseandthe stablesbeingraisedinthe18th century.Healsosuggeststhattwoparallelwallsrevealedinatrenchrunning betweenthesouthendofthewestrangeofthestablesandthehouseareremnantsofa(19thcentury?) gardenshrubbery,whilstheconcludesthatanorthͲsouthwallinthesametrench,continuingthelineofthe southͲwest garden boundary wall, represents the southerly continuation of the garden wall shown on Rocque’s1741map.Towardsthesouthernendofthistrench,8metresfromthehouse,asubstantialnorthͲ southbrickwallwithareturntotheeastwasobservedbyWainwright andheconcludedthatthiswaslikely tobeTudorinorigin,possiblycorrespondingwiththebuildingshownonthe1635Gloverplan(figure47) linkingthehousewiththestables.Afurtherservicetrenchrunningalongsidethenorthwallofthehouse, monitored by Wainwright in 1992, revealed a northͲsouth wall 6.5 metres from the northͲwest tower. Wainwright suggested that this also corresponds with a wall shown on Rocque’s 1741 map.  Other excavations to note include a service trench dug in 2001 along the south wall of the northͲeast range,whichrevealedthefoundationforagatepieronthelineoftheeasternboundarywallofthisyard; andatrenchdugin1999runningacrossthestableyardfromthewestrangetothestepsontheeastfront ofthehouse.ThelatterranparalleltoWainwright’s1992trench,but 8metresfurthernorth.Theauthorof thereportofthiswork(Jessop)notedtwoparallelbrickwallsalignednorthͲeast,themorenortherlyofwhich islikelytobeacontinuationofthemoresoutherlywallnotedbyWainwrightsevenyearsearlier.Jessop notedthepresenceofarich humicsoilabuttinghisnorthwall,mirroringWainwright’sobservationthatthese walls may have retained a shrubbery or other garden feature. Jessop noted mediumͲsized grey cobbles abuttinghissouthwall.Healsomonitoredatrenchdugthroughthefloorofthewestrange,leadingtothe discoveryof abrickdrain.Geophysicalinvestigationsin2009suggestthatextensivestructuresonceexisted to the east of the stables, as well as a feature to the north of the walled garden.  Althoughnotstrictlyrelevanttothisreport,figure2alsoshowsthelocationofwhatisthoughtto havebeen afountainbaselocatedoutsidetheeastfrontofthehouseduringtheexcavationforlayingagaspipein

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 1993.AsubstantialbrickstructurealignednorthͲeastwasrevealedontheeastedgeofthedriveoutsidethe toiletblockin2006,butwasunfortunatelynotrecorded,exceptviaseveraldigitalphotographs.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 45 152253 N/A N/A Regional BLD Site of Alargecircularmound30metresindiameterand4Ͳ5metresinheightonthenorthedgeoftheGardenLake significance icehouse,Osterley marksthesiteofanicehouseshownonthe1832mapofOsterleyPark.Theinterioroftheicehousehasnow Park collapsed,butthe1832mapshowsthemoundassurroundedbyaroughlycircularfencewithanumberof treescontainedwithinthefence.Anearlier1780mapshowsamoundinthislocation.AsmallTshaped buildingisshownwithinthecentreoftheenclosure,whichpresumablyrepresentstheoutlineoftheice houseitself.ThesmallprojectionontheeastsideofthisTshapepresumablyrepresentstheentryintothe chamberoftheicehouse,inwhichcaseitwasenteredfromtheeastsideofthemound.Thedateforthe constructionoftheicehouseisuncertain,asisthedateforitsdemise,thoughitshowsasintactbutwithout thefencedenclosureonthe1896(3)OrdnanceSurveymap.Oraltestimonysuggeststhatitmayhavebeen filledin1939bythe9thEarl(BarryWilliams,OsterleyPropertyManager)asitisstillshownonthe1920OS 6inch map. Its situation on the north bank of the lake would mean that it was conveniently placed for gatheringiceduringthewinter.Itisalsowithinfairlyclosedistanceofthehouse,thoughperhapssufficiently farawaytobeoutofsight.Thesmallplantationwithintheenclosurewouldalsohavehelpedtoscreenany activitytakingplacearoundtheicehouse. 46 152231 MLO85599 1240735 Grade II LB BLD Farmhouse,Osterley Circa1780.Stockbrickwithpinkbrickdressings.Parapetfronttotiledroofwithbrickendchimneys.Stone Regional ParkandHouse copingtoparapet.NotNTowned. significance

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 47 152258 N/A N/A Local MON Brick culverts SeveralbrickculvertshavebeendiscoveredrunningacrossthestableyardatOsterleyduringexcavationsin significance discovered by the 1990s. excavation in the  stableyard,Osterley In1991abrickdrainwasobservedinthetreepitnearestthehouseandthiswasnotedtobetruncatedbya Park castironpipe.In1992aservicetrenchbetweenthewestwingofthestableblockandthehousealargeEͲW culvertwasstruck,whichwassuggestedtobe18thcentury.Thisisalmostcertainlythesameculvertasthat observed in 1999.  Theexcavationofatrenchin1994forlayinganelectricalcablebetweenthesouthendsoftheeastandwest rangesofthestableblockrevealedthetopofavaultedbrickculvertmidwaybetweenthetworanges.This wasalsorevealedinoneofthecentraltreepits,suggestingaNWͲSEalignment.Itstopsurfacewasfoundat adepthof1.24metresbelowthegroundsurfaceandasecondsquaresectiondrainrunningNEͲSW,was observedtofeedintoit.Thisseconddrainwasnotedasbeingcappedwithseveralpiecesofdiscarded16thͲ 17th century architectural fragments.  In1999theexcavationoftrench10foragasmainrevealedasubstantialNEͲSWorientatedarchedculvert, 1.5metresinwidth,closetotheeastwallofthewestwingofthestablesblock.Furthertothesouthofthis trenchfoursmallersquaresectionbrickdrainswerediscoveredneartothenorthͲwestcornerofthehouse. TwoofthesewereorientatedNEͲSWbuttheothertwolayatatangentandfedintoalargevaultedculvert running NEͲSW. The author of the report on this excavation (Jessop 1999) noted that:  ‘Thepositionofthesedrainsisremarkablysimilartoadrainagelayoutinstalledwithinthecourtyardin1879. Theanglesoftheexposedjunctionsarealmostidentical;however,the1879planlocatesthedrainsc.10 metresfurthersouthͲeastthanthoseexposedwithintrench10.Itissuggestedthattheworkmenwhowere presumably following the plan in 1879, actually located the drains in the incorrect position, because no further features were identified within the trench at the correct location as marked on the plan.’  Thestableyardthereforeappearsto becrissͲcrossedbyanumberofbrickculvertsanddrains,thelarger and probably earlier being of arched form, whilst the later, of square section and running in a similar alignmentI.e.NEͲSW. 48 152268 N/A N/A Local MON Brickfootingsonthe BrickfootingsforthenortherlycontinuationoftheboundarywallaroundtheEastStableYardwerefound significance eastsideoftheEast whenanarchaeologicalwatchingbriefwasconductedovertheexcavationofatrench(trench18)onthe StableYard,Osterley southͲeastcorneroftheBothycottagein2001(eventno.ENA2363).Atthemidpointofthistrenchbrick Park footings0.35metresinwidthwereencounteredslightlybelowthesurfaceofthepresentyard.Thefootings continuedacrossthewidthofthetrenchandcontinuedthealignmentofthecurvedboundarywall.They abutthebaseofthesouthwallofthebothyandclearlypostͲdateitsconstruction.Nevertheless,theyare assumedtoformthecontinuationofthewallandprobablydatefromthe18thcentury.Thewatchingbrief alsoobservedtheoriginal16thcentury brickfootingsforthesouthwallofthebarn.Theseformastepped plinthatthebaseofthewall.Attheeastendofthetrenchalengthofbrickpavingwiththebrickslaidside bysidesuggeststhelocationofadrainrunningonanorthͲeasttosouthͲwestalignment.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 49 152282 N/A N/A Local MON Site of fountain Siteofafountainrevealedbyexcavationsontheeastfrontwhenagaspipewaslaidin1993.Locatedclose significance revealed by totheedgeofthecurrentdriveandc.15mfromthebaseoftheeastfrontsteps,locatedonthecentraleastͲ excavation, east westaxisofthehouse.ItispossiblethatthisisthefountainorbasinshownontheeastfrontonRocque’s front,OsterleyPark 1746mapofLondon(1).Itisassumedthatthefoundationsremaininplace. 50 152284 N/A N/A Local MON Brickwalleastofthe Asectionoffbrickwallwasrevealedintwooutofthreeshorttrenchesontheeastsideofthedriverunning significance toilet block in the pastthetoiletblockinNovemberof2006(eventno.ENA3925).Unfortunately,thetrenchesͲcutforassessing NorthͲEastMeadow, thesourceofawaterleakͲwerenotarchaeologicallymonitoredbutseveraldigitalphotographsweretaken OsterleyPark bythePropertyManager.Thewallmeasuresatleast0.5metresinwidthandthenatureofthebrickͲhand moulded and uneven in size Ͳ suggests a 16th or 17th century date for its construction. The site was subsequentlyevaluatedbyageophysicalresistivitysurveyundertakenin2011(eventno.ENA6922)whena largeareaofhighresistancewasrevealed,theoutlinescorrespondingwithabuildingrangerunningand courtyardwalleastofthe stablesshownonRocque’s1741mapofLondon(1).Itisthereforelikelythatthe brickfootingsformpartofthisrange,mostlikelydatingfromthesecondhalfofthe17thcenturyorearly 18thcentury. 51 152271 N/A N/A Local MON Parish boundary Thissmallstoneislocatedinthecentreofthelawnontheeastsideofthehouse,approximately29metres significance stone,OsterleyPark fromthemetalfenceformingtheboundaryofthedrive/meadow.Itisshownonthe19thcenturymaps, includingtheestatemapof1832, whereitdefinesthemeetingoftheparishboundariesofHestonand IsleworthandEaling.Unfortunately,successivephasesofmowingseemtohavereducedtheheightofthe stonesothatitnowliesflushwiththegroundsurface.Itstopsurfacemeasuresapproximately20. metres square.Anexcavationneedstobecarriedouttoconfirmitsfulldimensionsandtorecordanyinscriptionon thestone. 52 152216 N/A N/A Regional BLD Jubilee DetachedtwostoreybrickͲbuiltlodgewithslateroofonthenorthͲeastdrivefromOsterleyLanebuiltin1882. significance Lodge,OsterleyPark 53 152219 N/A N/A Local MON Linearearthworksin ThesetwoditchesrunacrosstheopengrassyareaoftheNorthͲEastMeadowonasouthͲeasttonorthͲwest significance the NorthͲEast alignment.Eachmeasuresroughlyametreinwidthandperhapslittlemorethan0.1metresindepth.The Meadow, Osterley twoditchesareseparatedbyagapof7metresandthegroundbetweenthetwoditchesisslightlyraised. Park Theycanbetracedoveralengthofabout80Ͳ90metres,beginningneartothewestedgeofthelakeand continuingtowardsthetreesonthewestedgeoftheopengrassyarea.Itispossiblethatthesetwoditches coincidewiththeformercourseofOsterleyLane,asshownonRocque’s1741map(1).Thisshowsthelane aspassingbetweenthesemiͲcircularavenueoftreesandthemainavenueleadingaway fromthehouseina northͲeasterlydirection.Rocque’smapshowsthelaneaslinedoneithersidewithahedgeanditistherefore possiblethatthesetwoditcheslayoneithersideofthehedgedlane.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 54 152287 N/A N/A Local FS Lead tokens and 5leadtokensand3buttonblanksfoundinOsterleyParkbyamemberofstaff(RobChambers,securityhut significance buttonblanksfound attendant)duringperambulationsaroundtheparkinthelate1990s.Preciselocationnotrecorded.These inOsterleyPark itemsweresenttotheBritishMuseumforexaminationandthefollowingcommentswerereceivedfrom ArthurMacGregor:  ‘Threeundoubtedtokens15th/16thcentury.Fourdisks(twoperforatedlikebuttons)whichmayalsobe tokens.OnelozengeͲshapedpiece,moreprobablyaweightthanatoken.Oneleadseal,armslook Netherlandish(orLeon?)?17/18century.OneRomanbrooch(kneebrooch),2ndͲ3rdcentury.’  ThefollowingdimensionsoftheseitemswerecompiledbyNTarchaeologistGaryMarshall:  Leadtoken25mmsdiameterwithcrosspatternstampedononefaceͲlate17thͲearly18thc.Ͳcommonin Londonarea  Leadtoken20mmsdiameterstampedwithletter‘T’ononefaceͲ18thc.  Leadtoken,diamondshape,23mmslength,‘8’stampedononeface  Leadtoken,20mmsdiameter,‘IR’stampedononefaceͲpossiblymidtolate17thc.  Leadclothseal,17mmslength, stampedwithrampantlionbadgeͲ18thor19thc.  Leadbuttonblankwith2holes,32mmsdiameter  Leadbuttonblankwith2holes,24mmsdiameter  Copperalloydisk,possiblebuttonblank,27mmsdiameter    ItemsarecurrentlystoredatOsterleyPark 55 152238 N/A N/A Regional MON Bank in the Thisfeature,runningeastͲwestacrossthesouthernendofthefieldknownas‘TriangularClump’,probably significance Triangular Clump marksthecourseofOsterleyLane,asshownonRocque’s1741map(1).Itcanbetracedacrossalmostthe Field,OsterleyPark entirewidthofthefield,beginningagainstthefenceflankingthewestedgeofthefieldandcontinuingalmost totheprojectingtiponthesouthernboundary,althoughitappearstofadeoutbeforereachingthistip.The bank measures approximately 4 metres in width. Its south face is  slightly more pronounced. The whole featurerunsparallelwithasecondlowbankofsimilardimensions(SMRno.152237)whichdefinesthesouth edgeofthelane,thoughthetwofeaturesareseparatedbyagapof21.4metres.Rocque’smapshowsthe laneasabroadfeaturelinedoneithersidewithahedge,beginningatWykeGreen.Eachofthehedgeswas thereforeprobablyplacedontheraisedbanks.TheoriginalcourseofOsterleyLane,asshownonGlover’s 1635map(2),layfurthertothesouth.ItwasthereforeredirectedtothecourseshownonRocque’smap sometimeinthelate17thorearly18thcenturywhentheparklandscapewasformalised.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 56 152248 N/A N/A Regional BLD Station AtwoͲstoreylodgeerectedin1885atthesouthernentrancetoOsterleyPark.Itisofheaderbondbrick significance Lodge,OsterleyPark constructionwithaWelshslateroofwithclayridgetiles,thetilesoverthegableendsandoverthedormers carryingroundedfinials.ThewestelevationincorporatesathreeͲsidedbaywindowatgroundfloorlevelwith plainstonemullionsandcasementwindows.Aboveisacasementwindowofsixlights.Thenorthelevation hasaprojectingsinglestoreytimberͲframedglazedporchwithaslateroofraisingfromabricksillwall.Above thistherearetwofirstfloorcasementwindows,eachofsixlightsunderdormersprojectingfromthenorth slopeoftheroof.Thesouthernelevationiswindowlessbutatallbrickchimneystackwithtwoclaypots projectsfromthesouthslopeoftheroof.AsinglestoreyoutshotattachedtothesouthͲeastcorneralso incorporatesatallstack.Thereisasmalldetachedbuildingontheeastsideofthelodge,presumablyserving aspriviesandcoalshed?Thelodgeisdated1885byadiamondshapedterracottaplaqueinthewestgable. Itwaserectedinordertooverseeaccessupthesouthdrivetothehouse.Thisdrivewascreatedinthesame yeari.e.1885.ItissimilarindesigntoAvenueLodgeandDevonLodge. 57 152280 N/A N/A Local MON Bridge ThesiteofthebridgespanningthewidthofthelowerendoftheMiddleLakeatOsterleyismarkedbyseveral significance footings,Middle blocksofstonesetintothewestbankofthelake.Theseformedeitherathresholdoranabutment.The Lake,OsterleyPark positionofthebridgeisalsomarkedbyastoneortimbersillrunningacrossthewidthofthelake.Thebridge measuredapproximately34metresinlengthandwasoriginallyintwosections,withanarchedgapinthe centrebetweenthetwosections.Itiscapturedonac.1910photoheldattheVandAMuseum(negno. GK2715),acopyofwhichisheldintheNT’sHistoricBoxes.(1).PhotosontheBritainfromAbovewebsite stillshowitinͲsituuntilatleast1938(EPW057913).Thec.1910photosuggeststheentireconstructionis likelytohavebeenoftimber.Shownonthe18942ndedition25ͲinchscaleOSmapsopredatesthis. 58 152289 N/A N/A Local BLD Salopian House, Small, early 19th C cottage, once one of a semiͲdetached pair reputedly built in 1807 which has been significance Hounslow,Osterley successivelyenlargedmainlyonthegroundfloorinthe19thand20thC.Feworiginalfeaturessurviveand onlyafewfromanydateduringthe19thC.Numerousalterationsinsidehaveleftclearevidenceinthefabric, particularlyrelatedtotherenewalofdecorativeschemesandtheupgradingoftheproperty.Thepropertyis probably the survivor of a pair of semiͲdetached dwellings, the other of which is reputed to have been demolishedduetoSecondWorldWarbombdamage. 59 152270 N/A N/A Archaeologic MON Site of former MosesGlover’s1635mapoftheHundredofIsleworth(1)showsatallbuildingwithaturretedroofmarked alpotential Hunting Lodge, ’Lodge’locatedonthesouthsideofthechainoflakeswhichranthroughthe16thcenturypark.Itisdifficult OsterleyPark toestablishthepreciseformerlocationofthisbuilding,althoughitwasprobablysituatedinwhatisnow calledNineAcreFieldandontheeastbankofMiddlePond.MiddlePondwascreatedasafeatureofthe landscapedparkduringthesecondhalfofthe18thcentury,butonthesiteofthepondsshownonthe1635 plan.Thelodgeislikelytohavebeensituatedonthehighestgroundabovetheoriginallakeandthesitemay thereforelieatthetopofthegentleslopeinNineAcreFieldleadingtotheexistingpond.Thedateforthe removalofthelodgeisuncertain,althoughithasgonebythetimeofRocque’smapofc.1741(2).Glover’s mapshowstheareaofparktothesouthͲeastofthelodgeascoveredbywoodlandpastureandittherefore seemslikelythatdeerwerehuntedinthisareaofthepark.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 60 152233 N/A N/A Local MON Site of building in LocatedonthenorthͲwesttipofthefieldknownasTriangularClump,thisnettleͲfilledhollowmeasures significance Triangular Clump roughly30metresinwidth(NͲS),upto0.5metresindepthandatleast35 metresinlength(EͲS).Itcontinues Field,OsterleyPark beneathandbeyondthemodernpostandrailfenceforadistanceofatleast10metresintothesurrounding plantation.Itisroughlycircular,althoughitisslightlygreaterinlengtheastͲwest.Ithasgentlyslopingsides definingitsnorth,southandeastmargins.Notraceforthewestedgeofthefeaturecouldbefound,although itcontinuesacrosstheexistingfootpathandintothescrubwoodlandflankingthewestedgeofthepath. Therearenoearthworksoutsideofthemarginsofthehollow,suggestingthatitisunlikelytobeaquarry.It is possibly a small dried up pond, perhaps serving the 16th century deer park. However, oral evidence (providedbyMervynRichardsofAvenueLodge)suggeststhatthiswasthesiteofasmallbarn,onlyrecently demolished.ThisseemstobeconfirmedbyexaminationofaerialphotographsattheNMRatSwindon.A 1946photographshowsthehollow,apparentlywithafencearoundit.Thereisabuildingonthenorthedge ofthehollowandasecondsmallerfencedenclosureslightlytotheeastonthelineoftheexistingfence. Thereisalargeoaktreewithinthehollow(2115),whichwasalmostcertainlyplantedaftertheformationof thehollow.Perhapsrathersurprisinglynoneofthesefeaturesappearonanyofthehistoricalmaps.The hollowseemsmostlikelytodefinetheoutlineofaformerpondandthebuildingwasperhapsafieldbarnfor cattle,oranopenstablebuildingforhorses. 61 152242 N/A N/A Regional MON Fieldboundarybank Locatedinthesouthernhalfofthefieldknownas‘TriangularClump’,thisfeaturecanbetracedoveralength significance in Triangular of125metres,beginningatthewirefencealongthesouthedgeofthefieldandcontinuinginanortherly Clump,Osterley directiontowardsthecentreofthefield.Thisisaslightlyraisedbankwithagentlecurvedprofile,measuring Park 30Ͳ40cmsinheightand6.7metresinwidth.Itssouthendoriginallycontinuedbeyondthewirefenceand intotheadjoiningfield(‘AllotmentField’)butploughinghasremovedalltrace.Atitsnorthenditmergeswith SMRno.152237,whichisagentlebreakofsloperunningeastͲwestacrossthewidthofthefield,probably definingtheoriginalcourseofOsterleyLane.ThelocationofthisfeaturecorrespondswiththesouthͲeast corneroftheformerdeerpark,depictedonRocque’ssurveyof1741(1).Inwhichcaseitprobablydatesfrom theperiodof16thcenturyemparkment.Thesurveyshowsthisfeatureascarryingwhatappearstobea hedge,inwhichcasethebankwasprobablydeliberatelyraisedwhenOsterleywas emparkedin1565.Traces ofaveryslightbroadditchcanbefoundrunningalongthewestedgeofthebank.Thisseemstoconfirmthe featureastheparkpalesinceonewouldexpectaditchtorunalongtheinneredgeofthebanksothatdeer could not leap the boundary. Clearly the bank and ditch has been largely destroyed by ploughing. Nevertheless,thesurvivingremnantisanimportantfeaturesinceitdefinestheoutlineofthe16thcentury park.IthasanimportantgroupvaluesincepartsofthesouthͲwestboundary(152243)canalsobetraced. Therefore,itshouldbepreservedinsitu. 62 152234 N/A N/A Regional MON Ditch in Triangular Ashallowditch,measuringapproximately3metresinwidthandapproximately150metresinlength,runs significance Clump northͲsouthacrossthefieldknownasTriangularClump.Itbeginsatthefencedefiningthenorthernboundary Field,OsterleyPark ofthefieldh(thoug doesnotsurvivebeyondit)andcontinuesinasoutherlydirectionuntilitmeetswiththe north bank of the former course of Osterley Lane (152238). It appears to cut the bank and therefore postdates the lanewhich dates from the late 17th or early 18th century. It is possible that this ditch correspondswithafieldboundaryshownonRocque’s1741plan,internallydividingpartoftheeasternarea oftheformalpark.However,itisperhapsmorelikelytobeadrainageditchassociatedwiththeItalianPOW campthatwasformerlylocatedinthisfield.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 63 152237 N/A N/A Regional MON Former field ThisslightraisedbankandditchfeaturerunsonaneastͲwestalignmentacrossthewidthofthesouthernhalf significance boundary (?) in ofthefieldknownasTriangularClump,assumingaslightkinkinitsmidͲpoint.Itbeginsontheeastedgeof Triangular Clump themainentrancedrive,continuesbeneaththeironfenceandcontinuesalmosttothesouthͲeastcornerof Field,OsterleyPark thefield,althoughitfadesoutbeforereachingthiscorner.Itthereforemeasuresabout260metresinlength. Thebankaverages4.5metresin widthand0.2Ͳ0.3metresinheight.Theditchrunsalongthebaseofthe northedgeofthebank,averaging2.5metresinwidthandnomorethan0.1Ͳ0.2metresindepth.Thisditch andbankfeaturerunsparallelwithasimilarbank(SMRno.152238),thoughseparatedbyagapof21.4 metres.ThetwofeaturesarethoughttodefinethecourseofOsterleyLane,asshownonRocque’s1741map (1).ThisshowsabroadlinearfeaturerunningacrossthesouthͲeastcorneroftheformalpark,beginningat WykeGreen.Thelaneappearstohave beendefinedbetweentwohedgesanditisassumedthatthesewere plantedoneitheroftheraisedbanks.Theactualcourseofthelanebetweenthetwobanksisslightlylower thanthesurroundingfield,suggestingthatthelanewaswellused.Glover’s1635map(2)showsanearlier course for the lane slightly further to the south, running through the 16th century park. It is therefore assumedthatthelanewasmovedtothecoursedefinedbythesetwobankswhentheparkwasformalised inthelate17thorearly18thcentury. 64 152235 N/A N/A Regional MON Earthworks in Aclusterofirregularshapedearthworksonthenorthernedgeofthefieldknownas‘TriangularClump’, significance Triangular Clump locatedatapointabouthalfwayalongthelengthofthenorthernboundaryofthefield.Theseearthworks Field,OsterleyPark consistof averyslightditchrunningsouthwardsfromthewirefenceoveralengthofabout70metres.The southernendofthisditchassumesasharpkink.Attheopposite(northern)endthereisaslighthollow measuringapproximately14metresinlengthlyingclosetotheeastedgeoftheditch.AnLͲshapednorthͲ facingbreakofslopeliesslightlyfurthertotheeast,measuringapproximately30metresinlength.This featurecontinuesbeneaththewirefencebuthasbeenploughedoutfromtheadjoiningfield.Itisassumed thattheseearthworksrelatetothesiteofthe formerGermanPOWcampsincethiswaslocatedinthispart ofthefield.Thefootingsforoneofthebuildingsofthiscamp(152236)liesslightlytotheeastandthereisa smallconcretebaselocatedapproximately50metreseastoftheditch.Otherconcretestructurescanbe found,includingconcretefootingsforafenceformingasmallenclosure.Furtherevidencecanbefoundalong theeastedgeofthefield(152239,152240and152241).Itisdifficulttobecertainaboutwhatrolethese earthworksplayedintheoperationofthecampsinceithasbeen destroyed.Theditchmayhavefedintoan earlierdrainageditch(152234)whichrunsacrossthecentreofthefield.Althoughitseemstohavesurvived duringtheoperationofthePOWcampitactuallyappearstobeanearlierfeaturedatingfromthe19th century?Itslocationandalignment correspondpreciselywiththewestedgeofasmallbeltofwoodland whichappearsonthesecondeditionOrdnanceSurveymapof1896,inwhichcasetheditchmayhaveserved todrainthispieceofwoodlandandperhapsalsoserveasaboundaryfeature.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 65 152259 N/A N/A Regional MON Former drive, Forty Thisisaveryslightlinearbank,440metresinlength,4.3metresinwidthandnomorethan10Ͳ20cmsin significance Field,OsterleyPark height,whichrunsastraightalignment,roughlyeastͲwestfromWykeLodgetotheoppositesouthͲwest cornerofFortyField.AtitseastendthisfeatureseemstoflattenoutjustbeforereachingtheLodge,possibly becauseithasbeendestroyedbyploughing.Attheopposite(west)enditcanbetracedtoslightlybeyond thesouthͲwestcornerofthefield.ItcrossesthenorthͲwesttipoftheadjacentfieldandcontinuesacrossthe newlycreatedpathwhichcurvesaroundthewestsideofFortyField.Thereisalargeoaktreewhichsitson thebank(tagno.2115)andthissuggeststhatthebankmustpreͲdatetheplantingofthe oak.Thisisan importantfeaturesinceitcanquiteclearlyberelatedtothecourseofOsterleyLanefromWykeGreenwhich appearsonJohnRocque’smapof1746(surveyedin1741).Onthismap(1)tworoadsconvergetoformthe driveontheeasternedgeoftheparkatWykeGreen(thismayexplainwhytheeasternendofthebankseems towidenout).Itthencontinuesinawesterlydirectionacrosstheparkbeforeturningthroughnearly90 degreestoruntowardsthenortherntipofthepark.Thisnortherlysectionprovidedaccessontothemain drivetotheeastfrontofthehouse.TheevidencefromRocque’smapsuggeststhatthedrivewasedgedon eithersidewithahedge,presumablytostoplivestockwithintheparkfromstrayingontothedrive.Thedate fortheformationofthisdriveisdifficulttodetermine.ClearlyitpreͲdatesRocque’ssurveybutpostdates Glover’s1635mapofIsleworth(2)sincetheoriginalcourseofOsterleyLanecommencedfromfurtherwest onWykeGreenCommon.Itmusthavecontinuedinuseuntiltheformallinesoftheparkweresweptaway inthe1760s. ItratherawkwardlybisectsthetreeͲlinedavenuesradiatingoutfromthehouseshownon Rocque’s map, suggesting that it was a preͲexisting public road which remained inͲsitu after the formal landscapehadbeensuperimposedintheearly18thcentury. 66 152221 N/A N/A Regional MON Ditch in Shooting Averyslightditchmeasuringapproximately3metresinwidthand0.1Ͳ0.2metresindepthcanbetraced significance Field,OsterleyPark runningnorthͲeasttosouthͲwestacrossthenorthernendofShootingField.Itemergesfromtheplantation onthenorthͲeastcornerofthefieldandcanbetracedoveralengthofabout100metresbeforeitfadesout. Thisfeaturerunsparallelwithaslightraisedbankwhichalsoemergesfromtheplantation(152222).Thetwo featuresareseparatedbyagapof30metres.Itispossiblethattheyareassociatedwiththemainavenueof treeswhichappearsonRocque’s1741map,leadingawayfromtheeastfrontofOsterleyHouse.Thisshows twodoublerowsoftreesrunningnorthͲeastacrosstheformalparktowardswhatisnowWindmilllane.The ditchmayhaveprovidedameans ofdrainageontheavenue,which wasperhapsusedacarriagedrive. Alternatively,theditchandthebankmayhavebeenusedforsettingoutthealignmentoftheavenue. 67 152222 N/A N/A Regional MON Bank,Shooting Averyslightstraightlinearbankapproximately3metresinwidthcanbetracedrunningacrossthenorthern significance Field,OsterleyPark tiphalfofShootingFieldonanorthͲeasttosouthͲwestalignment.Thebankemergesfromtheplantationon thenorthͲeastcornerofthefieldandcanbetracedoveralengthofabout100metresbeforeitappearsto havebeenflattenedorploughedout.ExaminationofLIDARdatasuggestsatitssouthernenditjoinswitha northͲwesttosouthͲeastalignedditch152308.Itispossiblethatthebankisassociatedwiththemainavenue oftreeswhichappearsonRocque’s1741map.Thisshowstwodoublerowsoftreesleadingawayfromthe eastfrontofOsterleyHouseonanorthͲeasterlyalignmenttowardswhatisnowWindmillLane.Itispossible thatthisranbetweenoneofthedoublerows,orthatthetreeswereactuallyplantedonthetopofthebank. 30mtothenorthandrunningparallelwiththebankinthesamefieldthereisanarrowditch(152221)which isalsoassumedtobepartofthesamefeature.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 68 152227 N/A N/A Local MON Possiblelynchet in LocatedatthesouthernendofShootingFieldthisisanorthͲfacingbreakofslopemeasuringroughly3metres significance Shooting Field, inwidthandup0.5metresinheightwhichistraceablefromtheeastedgeofOsterleyLaneandfollowsa OsterleyPark slightly curving course to the brick wall flanking the east edge of the field. Its overall length therefore measuresapproximately120metres.Thisfeaturepossiblycorrespondswithahedgedfieldboundarywhich appearsonRocque’s1741map.TheboundaryinquestionliesonthenorthͲeasterntipofWykeGreenand separatesthegreenfromwhatisshownasafieldunderarablecultivationonthe1741map.Theprocessof ploughinguptotheedgeofthegreenwouldhavecreatedsuchafeature,especiallyifahedgeranalongits crest.Severalsmallbuildingsappearonthisboundaryonthemap,lookingoutandleadingontotheareaof arable cultivation, and thus suggesting that this was the farm buildings to which the arable land was connected. 69 152229 N/A N/A Local MON Linear bank running ThisfeatureismainlytraceablefromLIDARdatathoughisevidentonthegroundasaverybroadrounded significance across the northern ridge,suggestingitsoutlineshavelargelybeendestroyedbyploughingandperhapsbytheridgeandfurrow half of the NorthͲ (152218)whichrunsacrossthewidthofthemeadow.TheLIDARdatasuggestsitmeasuresc.370minlength East and13Ͳ15minwidth,extendingtothesouthedgeoftheenlargedsectionofMiddleLakeandextending Meadow,Osterley southwardsalmostasfarastheJubileeAvenue.TowardsitssouthernenditcurvesveryslightlytothesouthͲ Park west.Itispossiblethatitcoincideswiththenortherndiagonalavenueemanatingfromthegoosefooton Rocque’s1741map,althoughsite152295seemsamorelikelycandidateforthisfeature.Thefactthatthe ridgeandfurrowappearstorunovertheridgesuggeststhatitpreͲdatestheridgeandfurrowandhencemay beanearlyfeaturefromthelatemedievalperiod.Aheadlandassociatedwithearlierridgeandfurrowisone possibility. 70 152228 N/A 1391000 Grade II LB BLD Wyke Green Lodge, Pairof18thcenturybrickandstuccoedentrancelodgesstraddlingOsterleyLaneandcontrollingtheentrance Regional OsterleyPark to Osterley Park. Original section appears to be 2 storeys with outshots then added to east and north significance elevations.Slateroofwithclaytileridgewithterracottamouldedfinial.Principalsouthelevationhastwo windowopeningswithverticalslidingsashes,eachofsixlights.Openingshaveflatmouldedhoodsandplain stonesills.Similarwindowsinwestelevationandtotheelevationsoftheoutshots.Westelevationhasa blockedrdoo withasimilarhoodbutinthiscase,itissupportedbymouldedbracketswithscrolledterminals atthefeetofthebrackets.Thefollowingistakenfromthe2005parkrestorationplanpreparedbyColvin andMoggeridge.Thelodgeswerebuiltc.1777whenpaymentsforworkon theroofweremade.The1944 (isdatecorrect?)NTreportnoted‘Therearetwooriginalsquatstonepierswithmouldedcornicesandeach has the remains of an original wrought iron lantern. There are two fixed wrought iron side panels of interestingdesign.Thegatesaremissingbutconsistedoftwosuchpanelshungfolding.Oneofthesegates isintheTudorstablesatthehouse’.TheeastlodgewasacquiredbytheNationalTrustin1990andthewest lodgeisinprivateownership.OnlytheeastlodgeisownedbytheNationalTrust,thewest largeremainsin privateownership. 71 152266 MLO28045 N/A National MON Site of Orangery, OrangerydesignedbyRobertAdamc.1780.DestroyedbyfireduringWWII.Seesite34. significance OsterleyPark 72 152315 MLO85838 1391000 National BLD Jersey Road, Pair of gate piers. 1777. Designed by Robert Adam. Portland stone, with Coade stone insets. Each pier significance [Osterley Park], comprises a rectangular section upright on a base with torus moulding; at frieze height,on each of the GradeIILB Isleworth, {1777 principalfaces,isapateraofartificialstone,setwithinaprojectingblockwithguttaebeneath. gatepiers} 73 N/A MLO63772 N/A N/A MON Osterleyallotments FeaturesassociatedwithapostͲmedievalallotmentwerediscoveredinanevaluationcarriedoutbyMuseum ofLondonArchaeologyServicein1993.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 74 152262 MLO73926 N/A N/A MON Osterley Park, The footings and base of an octagonallyͲbased water tower were recorded in a service trench, duringa [Osterley House watchingbriefinthevicinityoftheStableBlockatOsterleyHouse.Seesite42. Stables], Isleworth {Watertower} 75 152278 N/A N/A Local MON Bank and ditch LocatedonthewestedgeoftheplantationflankingthewestendoftheGreatMeadowandclosetotheeast significance feature, Great edgeoftheperimeterpath,thisisasmallearthworkfeature13.2metresinlengthand7.4metresinwidth. Meadow, Osterley ItisorientatedwithitslongestaxisNWͲSEandconsistsofaUͲshapedditchwhichdefinesarectangle.The Park ditchmeasuresupto0.5metresindepthandapproximatelyametreinwidth.Thespoilfromtheditchhas beenthrownupontheouteredgeoftheditch.Thiswouldappeartobearelativelymodernfeaturesinceit isstillclearlydefined,withboththeprofileofthebankandtheditchclearlyidentifiable.Perhapsitdates fromOsterley’swartimeusebytheHomeGuard?Itmaybemorerecentthanthisandlocalknowledgemay providemoreinformationaboutitsdateandfunction.Itshouldbenoted,however,thatitliesalmostexactly onthemainvistafromthewestfrontofthehouse,andthismaysuggestthattherewassomesortofeyeͲ catcherinthislocation?The1832saleplanforOsterleyshowsaneastͲfacingUͲshapedindentintheplanting inthislocation,suggestingaclearingperhapscreatedaroundthisfeature. 76 152251 N/A N/A Local MON Ditch on the west Thisisalinearditchmeasuringslightlymorethan300metresinlengthand2.1metresinwidth,alignednorthͲ significance edge of the Great southalongthewestedgeoftheGreatMeadow.Itslocationcorrespondswiththelineofmodernfenceon Meadow,Osterley thewestedgeofthegardenswhichwasremovedduringthelate1990s.IthasbeenincludedontheSMRto Park avoidconfusionwithanadjacentfeature,SMRno.152250,whichisaslightlinearditchdefiningthewest edgeofthe16thcenturypark. 77 152276 N/A N/A Local BLD Cow sheds east of Twosmallbrickbuildings,builtbackͲtoͲback,servingascowshedsforfencedenclosuresontheeastsideof significance the walled kitchen thewalledgardens.Thelarger(east)buildingisbuiltofyellowstockbrickonthreesides,whilstthefourth gardens, Osterley (east) side is weather boarded on a timber frame. It incorporates a broad central opening in the east Park elevation, and two casement windows, one on either side of the opening. The upper parts of the end elevationsarealsoweatherboarded.Thedoublepitchroofisclaytile.Thesmaller(west)buildingisbuiltas aleanͲtoagainstthewestwalloftheeastbuilding.Itisbuiltofalightredbrickandincorporatesthree doorwaysinthewestelevation,eachwithapairofsplitdoorsofplankconstruction.Therearealsothree casementwindowsinthewestelevationwithblueengineeringbricksills.Thereisasimilarcasementwindow inthesouthelevation.Theroofisasinglepitchclaytileroof.Theseareclearlyrelativelymodernbuildings, builtspecificallytoactasshelterforcalves. 78 152212 N/A N/A Regional BLD Devon Detachedtwostoreybricklodgewithslateroofbuiltin1903.Theroofhasclayridgetiles,thetilesoverthe significance Lodge,OsterleyPark gableendsandoverthedormerscarryingroundedfinials.ItisIdenticalindesigntotheopposingAvenue Lodgewithwhichitformsapair,thoughAvenueLodgeisslightlyolder (1888).SimilartoStationLodge (1885).Thetwolodgeshavetheprincipalelevationsfacinginoppositedirections,suggestingDevonLodge controlledtrafficfromthesouth,AvenueLodgefromthenorth.TheprincipalelevationisthatfacingsouthͲ eastwhichhasanelaborategroundfloorporchrisingfromabrickplinthformedoftimberͲframingwitha king post frame to the top of the truss, the individual timbers with chamfered edges and runͲout stops.Windowsareofsixlights,theupperwindowsasdormerssetwithintherooflineandcappedbyplain bargeboards.LintelsarestoneoverthedormerwindowsbutbrickͲarchedlintelforthegroundfloorwindow. ProjectingstoneͲbuiltgroundfloorbaywindowonthenorthͲeastelevationoverlookingthedrivewithsix lightsineachfacet.Sixlightfirstfloorwindowaboverear(northͲwest)elevationhascatͲslideroofoverwhat appearstobealatersinglestoreyextensionwithtwosixlightwindowsandlargebrickchimneysuggesting

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type scullery/laundry?AttachedbrickͲbuiltsinglestoreyshedtothesouthͲwestappearstohaveservedasprivy andperhapslaundryasithasacentralchimneywithterracottacap.Itisdividedlengthwiseintotworooms andhastwoverticalplankdoorsinthesouthͲeastelevationandasingleplandoorandwindowinthenorthͲ westelevation.(1)

79 152281 N/A N/A Local MON Siteoflilypondsand TwolargerectangularpondswerecreatedontheeastfrontofOsterleysometimebetween1927and1932 significance rose beds, Osterley bythe9thLordJersey.Rosebedsweresubsequentlyaddedafterc.1932.Thesefeaturesarebelievedtohave Park beeninfilledinthe1950sͲamidͲ1950saerialphotograph(Aerofilms113167ͲcopyheldbytheNT)showsall thebedsfilledinandonlythepondsremaining.A1946photographheldbytheTimes(copyintheNTHistoric Boxes)showsboththerosebedsandtheponds,thelatterwithlowstoneurnsoneachcorner.Asecond photoheldaspartofthearchivefromtheRoyalBankofScotland(ref.GM/58)showsthepondswithstone edgingandtherosebedslaidoutsymmetricallyeithersideofthegraveldrive,comprisingthreebedsina rowatrightanglestothedriveandthenanoutergroupofeightbedslaidouttoformarectangle.These outerbedsseemtohaveformedaslightlylaterphaseastheyarenotshownonac.1932aerialphotograph (heldintheNT’shistoricboxes).Agravelpathat90degreestothemainpathseparatestherowofthree bedsfromtheoutermostrectangleofeight.Furtherperimeterpathlaysoutsideofthebeds,runningparallel with the central axial path. A geophysical survey in 1998 revealed the outline of the ponds (event no. ENA3922 (1)).TheywerealsorevealedbyparchmarksduringJulyof2018whentheywerephotographed from a camera mounted on a droneͲsee images at Consultancy\Osterley Property Group\_OSTERLEY PORTFOLIOWIDE\DigitalImages\Photos\20180726parchmarks(2). 80 152291 N/A N/A Local LDF Site of ‘Boat House’ SiteofaboathouseonthenorthbankoftheGardenLakeshownonthe1920OS6Ͳinchmap.AWWII significance on the Garden Lake photographheldaspartoftheRoyalBankofScotlandarchive(ref.GM/538ͲcopyheldintheNT’sHistoric atOsterleyPark Boxes)showswhatappearstobeaflightofstone/brickstepsinthislocation,althoughthereisnoactual roofed structure. It may therefore have been a simple landing stage for a boat rather than a covered structure.ItisstillshownontheOS25Ͳinchscalemapof1969whereitisshownattheterminationofanLͲ shapedpathpassingacrossthewestsideofthesouthlawn.Thefivestonestepsstillremain,flankedbylow retainingwallswithstonecopingswhichappeartobereͲusedsincetheycarryemptysocketsforironcramps. 81 152249 N/A N/A Regional BLD Mason’s AsinglestoreylodgeofbrickconstructionlaidinEnglishbond,datedto'1906'byastoneplaque significance Bungalow, Osterley intheeastgable.Theroofcoveringisclaytilewiththeridgeformedofterracottatileswithroundedfinials Park attheendoftheridge.Inplanthelodgehasamaincentralblockwithextensionsoneitheroftheeastand westends.Entrytothebuildingisviaaprojectingporchonthesouthelevationwhichisalateraddition.The south elevation has a threeͲsided bay window  overlooking the drive with stone mullions and casement windows.Alargebrickchimneystackrisesthroughthesouthslopeoftheroof.Thereisasinglecasementof sixpanesintheeastelevation,whilstthenorthelevationhasthreecasements,eachoffourpanes.Abrick stackrisesthroughthenorthslopeoftheroof.Thewestelevationextensionperhapsservedasaprivyand

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type laundrysinceithasalowchimneystack.Surroundingthelodgethereisasmallcottagegardenenclosedby ametalpostandrailfence.

82 N/A MLO76083 N/A N/A MON 182JerseyRoad Anexcavationrevealedmadegroundofdemolitionrubble(bricktileandconcrete)overlayingnaturalbrick earth,approximately1.2mthick. 83 152290 N/A N/A Regional BOU Concretepostfence Alineofnarrowverticallysetconcretepostsc.400minlengthmarkingthenorthernedgeoftheformer significance marking north edge WWIIhospitalsite(seesiteno.152283).ThepostsrunnorthͲeasttosouthͲwestinastraightlinewithonlya ofWWIIhospitalsite slight angle at the southern end, commencing on the west side of the main drive and reaching to the atOsterleyPark boundaryalongJerseyRoad.Thepostshaveaslightlytaperedprofile,measuring12cmsquareattheirbase and8cmsquareatthecapswheretheyendinahalfͲroundshape.Deteriorationoftheconcretewhichhasa verycoarseaggregatehasledtoironcoreofsomeofthepost.Spacingsbetweenthepostsmeasure3.2Ͳ 3.3m.Eachpostretainsthreeholesinopposingfacestoindicatethattheoriginalfencewasofthreewire strands.Therearediagonallysetstrainerpostsatintervalsretainingturnbuckleloopstoanchorandtension thewires.TowardsthesouthͲwestendoftherunofpostsanarrowpedestriangateopeningisdefinedbya strainerpostwithtwoirongatepintlesandontheopposingpostametalplatetopreventthegatefrom swingingbackwards.SimilartoconcretefencedefiningtheedgeofthePOWcamp152240. 84 152246 MLO2169 N/A Local MON LinearDitchesinthe ThisfeatureisdescribedontheHistoricEnglandGreaterLondonSMRas‘Faintlinearditchestothesouthof significance Hospital OsterleyHouse’.Nodateisassignedtoitsorigin.ItisassignedSMRno.150831andthegridreferenceis Field,OsterleyPark givenasTQ146774,whichwouldplaceitjustinsideHospitalField.Noevidenceofthisfeaturecouldbetraced onthegroundwhentheareawasfieldͲwalkedaspartofanarchaeologicalsurvey.Theformationofthese ditchesismostlikelytoresultfrompastWWIIactivityinthisfield. 85 152283 N/A N/A Local MON Site of wartime Slightearthworksinthisfieldareallthatremainofacomplexofprefabricatedbuildingserectedduringthe significance hospital, Hospital 1940stoserveasahospital.Examinationofaerialphotographssuggeststhatthecomplexconsistedoftwo Field,OsterleyPark major blocksofbuildings,eachblockcomprisingacentralcorridorservingsixwardsoneithersideofthe corridor.Oneoftheseblockswasarrangedwiththecorridorrunningparallelwiththeentrancedrivei.e. northͲsouth.ThesecondwasarrangedwiththecorridorrunningparallelwithJerseyRoad,andat rightangles tothefirstblock.Betweenthetwoblockstheaerialphotographsshowsmallerbuildings.Anaccessroadis alsoshowncomingoffJerseyRoad,curvingroundthenorthͲwestcornerofthesecondblockandservinga forecourtonthenorthsideofthissecondblock,presumablyrepresentingadmissionsandadministration. Theroadcontinueseastwardsrunninguptothecentreofthewestsideofthefirstblock.Thearrangement ofthetwoblocksistypicalofmilitaryhospitaldesignofthisperiodi.e.withaseriesofwardsbranchingoff fromeithersideofacentral accesscorridor.TheNationalTrust’shospitalatCliveden(Bucks)providesan example,andthebuildingsatthissiteͲofbrickconstruction,withprefabricatedrooftrusses,corrugated asbestossheetovertheroofandcastͲironframedwindowsͲprobablyillustratethematerialsusedinthe constructionoftheOsterleybuildings.Allthat nowremainsofthesiteisaseriesofveryslightandvery irregularearthworks.Alsoboundaryfence152290.Theevidencefromtheaerialphotographssuggestthat thesebuildingswerestillstandinguntilatleast1955,buthadbeenremovedby1960.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 86 152240 N/A N/A Regional BLD Iron gate and fence Thisfeaturedefinespartofthesouthernandeasternboundariesofthefieldknownas‘TriangularClump’; significance fromthePOWcamp ontheeastedgeofOsterleyPark.Itstotallengththereforemeasuresabout340metres,beginningonthe in Triangular southͲeastcornerofthefieldandcontinuingalongtheeastedgeofthefieldtothesouthͲwestcornerof Clump,Osterley WykeGreen.Itconsistsofaseriesconcretepostsformedaroundabundledironrodcore,eachmeasuring Park 1.7metresinheightabovegroundlevelandwithaspacingof3.2Ͳ3.3metresbetweentheircentres.The postsaresetintothegroundandhaveaslightlytaperedprofilesothattheymeasure12cmssquareatthe baseofthepostand8cmssquareatthetop.Thetopsarerounded.Inadditiontothepoststhereare occasionalstrainerpostswithdiagonalstrutts.Thesestrainerpostscarryverticalironbracketstowhichare attachedironloopsforsecuringthewirestrandsofthefence.Noneoftheoriginalwiressurvive,although smallpiecesstilladheretosomeoftheloopson theposts.Inplacesmallsectionsofmeshsurvivewhichmust havebeensecuredtothewires.Itwouldappearthattherewereoriginallythreestrandsofwireformingthe fence.ThepairofmetalgatesaretobefoundonthesouthͲeastcornerofthefield.Eachgatesmeasure 1.6 metresinwidthand1.5metresinheightandishungonaconcretepostviatwometalhinges.Eachgateis madeupoflengthsofthinLͲsectionironbar.Theselengthshavebeenboltedtogether,backͲtoͲbackto increasethestrengthofthegate.eTh cornersaresecuredbywedgeͲshapedplatesweldedtotheselengths. Eachgatehasapairofdiagonalstruttstoincreasestrengthandalsoaverticalandhorizontalstrutt,theentire appearancebeingsimilartoaUnionJackflag.Thetwogatesaresecuredtogetherbyaslidingironlatch securedtoanironsurround.ItisassumedthatthesegatessecuredentrytothecampfromWykeGreen. Togetherwiththeseriesofconcretepostsformingthefencealongthesouthandeastedgesofthefield (stumpsforamissingfenceonthenorthedgeofthefieldcanalsobefound)theyareanimportantsurvival, providing tangible evidence of Osterley’s wartime use as a German POW camp. See also 125290 for a descriptionofthepostsformingthefencealongthenorthsideoftheHospitalField.Althoughmostofthe evidenceassociatedwiththiscamphasbeenobliterated,thefewremainingfeaturessuchasthebrickand concretefootings(152236)andtheconcretebase(152239)haveanimportantgroupvalueandtheyshould thereforebepreservedinͲsitu.Furtherresearchneedstobecarriedoutontheplanandarrangementofthe campandthesurvivingearthworksandstructuralevidenceneedtobeaccuratelysurveyed.Similartofence markingboundaryofthehospitalfield152290.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 87 152236 N/A N/A Regional BLD Footings from the These footings lie close to the northern edge of the field known as ‘Triangular Clump’, at a point significance German POW camp approximatelytwothirdsalongthelengthofthefieldwalkinginaneasterlydirection.Thereareseveral in Triangular Clump chestnuttreesincloseproximityandscrubhawthornslightlytothesouth.Theyareofbrickandconcrete Field,OsterleyPark constructionandtheyarealmostcertainlymarkthesiteofoneofthebuildingsformingpartoftheGerman PrisonerofWarcampdatingfromthe1940s.Fourlinesofbrickandconcretefootingcanbetraced,projecting throughthesurfaceoftheturf.Eachmeasures0.23metresinwidthand18.6metresinlength(eastͲwest). Thereisagapofabout6metresbetweenthecentreofeachwall.Takentogetherthesefootingsdefinea buildingwhichmeasuredapproximately18.6 metressquare.Itisassumedthatthefootingsformedlow sleeperwallswiththefloorandframeofthebuildinglaidoverthetopsofthewalls.Thiswouldhaveraised thefloorofthebuildingslightlyabovegroundlevel.Therearesomeirregularearthworksslightlytothewest ofthesefootings(152235)andasecondsmallconcretebasemeasuring2.1x1.35metresliesapproximately 20metresfromtheirsouthͲeastcorner.ThesearealsoassumedtobepartofthePOWcampbuildings,asis the concrete post fence which runs around the south and east edges of the field. Evidence from aerial photographssuggeststhatthecampwasdemolishedsometimebetween1955and1960.Nevertheless,these fewsurvivingcomponentsdohaveanimportantgroupvalueandtheyshouldthereforebepreservedinͲsitu.  The English Heritage Register of Camps contains two entries:  Camp562(TQ15177795)ͲOSsheet176,OsterleyParkCamp,WykeGreen,Isleworth,Middlesex,Condition 4=removed(basesmayremain).GermanWorkingCompany,19gableͲroofedhutsandpairofparalleldining hall with central kitchen range (24ftͲspan Nissen). See camp 681.  Camp681(TQ15177795)Ͳ containssameinformationascamp562. 88 152241 N/A N/A Regional BLD Site of Prisoner of Severalfeaturesinthefieldknownas‘TriangularClump’markthesiteoftheItalianandGermanPOWCamps significance War Camps in erectedduringthe1940s.Perhapsthemostobviousistheconcretepostfenceandgateswhichrunsaround Triangular thesouthandeastedgesofthefield(152240).Stumpsoftheconcretepostscanalsobetracedalongthe Clump,Osterley northedgeofthefield.OtherfeaturesincludetheconcretebaseinthenorthͲeastcornerofthefield(152239) Park andthebrickfootingsandearthworksonthenorthedgeofthefield(respectively152236and152235).The brickfootingsonthenorthedgeofthefieldaresurroundedonthreesidesbyaseriesofconcretepadswith centralcircularholes,clearlydefiningtheoutlineofafence.Inaddition,thereareslightlyraisedearthworks adjacenttothesouthsectionoftheconcretepostfence,centredongridref.TQ1509778.Theseconsistof severalslightraisedmounds,plusanarrowLͲshapedditchcentredaroundtreestumpno.2126.Brokenbricks projectthroughthemounds,suggestingthatthesearemoundsresultingfromthedestruction ofthecamp buildings.ThepurposeoftheLͲshapedditchremainsuncertain.OraltestimonysuggeststhattheItalian POWswereaccommodatedintentsinthewesternhalfofthefield,whilsttheGermanPOWswerehoused inamorepermanentcamp,consistingofbarrackblocks,intheeasternhalfofthefield.Examinationofaerial photographsattheNMR(Swindon)suggeststhatthebuildingsformingtheGermanPOWcampconsistedof approximately14hutsarrangedinaratheradhocmannerinthenorthͲeastcornerofthefield.Comparison ofphotographssuggeststhatthehutshadbeenremovedby1955.TheItaliancamphadbeenremovedata muchearlierdateͲ1944(?).Theaerialphotographsshowthewesthalfofthefieldasheavilypitted,perhaps suggestingwherethetentswerelocated?

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 89 152239 N/A N/A Regional BLD Concrete base, part Locatedontheeastedgeofthefieldknownas‘TriangularClump’,thisisalargeslabofraisedconcrete significance ofthePOWCampin measuring9.1metresinlengtheastͲwestand5.9metresinwidthnorthͲsouth.Thereisasecondslightly Triangular Clump, raisedsectiononitsnorthͲeastcorner.Itisassumedthatthisfeatureformedanareaofhardstandingorthe OsterleyPark baseofabuildingassociatedwiththeformerWWIIGermanPOWcamp.Littleofthiscampremains,although thefewfeatureswhichdosurvive,suchastheconcretepostfence(152240)andthefootings(152236)do haveimportantgroupvalue.Evidencefromaerialphotographssuggeststhatthebuildingsconstitutingthe Germancampremainedstandinguntil1955buttheywereremovedby1960. 90 152223 N/A N/A Regional MON Shooting butt in RiflebuttoflightblueishͲgreybrickconstruction,locatedatthenorthendofShootingField.Thefieldwas significance Shooting formerlyusedbytheArmyasariflerangeandthebuttisthereforeassumedtodatefromWWII,orsoon Field,OsterleyPark after.Thebuttmeasures11.7metresinlengthandstandstoaheightofabout4metres.Itisslightlycurved inshapei.e.whenseenfromabove,thegentlecurvefoldinginwardstowardsthesouth,facingthedirection fromwhichitwasshotat.Therearetwolowflankingwallsabuttingthesouthfacewhichserveasretaining walls,holdingbackagrassslopebuiltupagainstthecentreofthesouthface.Attachedtotherear(north) elevationtherearefivefullheightsteppedbuttresses.Thereistheremnantofacementrenderattachedto thesouthelevation.Furtherresearchisneededintothedateofthisfeature,themannerinwhichitwasused, and how it relates to other features in the field, such as the linear ditch (152225) and the gravel track (152224).Suchevidenceismostlikelytocomefromoraltestimony.Theditchmayhavebeenusedasthe firingpoint,althoughonewouldexpectittoliesquareontothetargetbutt. 91 152224 N/A N/A Local MON Gravel Track, Aslightlyraisedgravelledtrack3.5metresinwidthrunsonanorthͲeasttosouthͲwestalignmentacrossthe significance Shooting Field, widthofShootingField.ItconnectsOsterleyLanewithWindmillLaneandisassumedtodatefromtheuse OsterleyPark ofthisfieldasariflerangeduringandafterWWII. 92 152226 N/A N/A Regional MON Ditch in Shooting Thisfeatureisassumedtorelatetotheformeruseofthisfieldasawartimefiringrange.Theditchisavery significance Field,OsterleyPark slight feature, roughly 3 metres in width and measuring approximately 140 metres in length, beginning againstthefencealongtheeastedgeofthefieldandcontinuinginanorthͲwesterlydirectionuntilitstops slightlyshortofthegraveltrack(152224)runningacrossthewidthofthefield. 93 152225 N/A N/A Regional MON Ditch associated Astraightditchapproximately250metresinlength,orientatedonanorthͲwesttosouthͲeastalignment significance withthefiringrange acrossthesouthernhalfofShootingField.TheditchhasaUͲshapedprofile,measuresslightlymorethana in Shooting metreindepthandhasaconsistentwidthof3.6metres.ItssouthͲeastendextendstotheeasternmarginof Field,OsterleyPark thefield,whilstintheoppositedirectionitstopsslightlyshortofthewestmarginofthefieldandjustshort ofaraisedgraveltrackpassingeastͲwestacrossthefield.AtitssouthͲeastenditisjoinedbyasecondditch runningonanorthͲsouthalignmentandheadingtowardstheWykeLodges.ThisnorthͲsouthsectionappears tocutacrossthecurvedlynchet152227.Itisassumed,becauseofitscloseproximitytotheshootingbutt (siteno.152223),thatthisfeaturewassomehowassociatedwiththeArmyfiringrangeinthisfield.Itmayin itselfhaveservedasthefiringrangewithatargeterectedatitsnorthend,althoughnoevidencewasfound for such a feature. If clusters of bullets are found at either end this would to confirm this suggestion. Alternatively,theditchmayhavecarriedmobiletargets.Oritmayhavebeenusedasapracticetrenchfrom whichweaponswerefired.Clearlyfurtherresearchandtestimonyisrequired.AnexaminationofLiDARhas identifiedthatthisfeatureextendsfurthernorththanpreviouslyrecorded.Itwasthoughtthatthefeature stoppedatgraveltrack152224howeveritappearstohaveextendedbeyondthisforafurther50m

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 94 152275 N/A N/A Local BLD Timberframedbarn, A threeͲbay single storey timber framed barn located on the northͲwest corner of Park Farm. The barn significance Park Farm, Osterley appearstobeofelmconstructionwiththetimberframecladwithhorizontalweatherboardingonthreesides, Park thenorthsidecladwithcorrugatediron.Entryintothebuildingisthroughabroaddoorwayinthesouthwall. The frame is of post and truss construction with the two central trusses consisting of a large tie beam, principalraftersandcollar.Thesetwotrussesaresetontothewallplate,whichinturniscarriedbyvertical posts,bracedtothetiebeam.Thereisasinglepairofclaspedpurlinsrunningthroughthebuilding.Paired commonraftersrunoverthepurlins.Thetwoendtrusseslackthecollarsincethisisreplacedbyvertical studscarryingtheweatherboarding.Thecentreofthetwoendtrussesissupportedbelowthetiebeambya braced vertical post. A small single storey weather boarded leanͲto is attached to the west end of the building.ManyofthetimbersappeartobereͲused,includingthetwocentraltiebeams,whichhavemortises cutintotheirlowersurfaces.Thenorthwallcarriesaraisedfeedrackoftimberconstructionandatimber feedtroughsetontotheconcretefloor.(1) 95 152273 N/A N/A Local BLD Cart sheds, Park ThisisaleanͲtobuildingattachedtothenorthͲeastcornerofthewalledkitchengardens.Itisopenfronted significance Farm,OsterleyPark tothenorthandconsistsoffourbaysbetweenthreeverticaltimberposts,withthefeetofthepostsplaced onstaddlestones.Thetopsofthepostsarebracedtothewallplatewhichcarriestheeavesofthebuilding. Theroofhasadoublepitchandiscoveredbycorrugatedironsheet.Internallythebuildingisopentothe roofatthefrontbutthebackhalfofthebuildingissubdividedintotwostorieswithaninsertedtimberfloor carriedonverticalposts.Theupperfloorwasclearlyusedforstorage.Theeastendofthebuildingispartially closedbythebrickwallsurroundingParkHouse.Thewestendissealedbyahighpartitionwallofbrickand weatherboarding,sharedwiththeadjacentstablesbuilding.(1) 96 152274 N/A N/A Local BLD Stables, Park Farm, Singlestoreystableblockincorporatingahayloftandsinglebaycartshed(?Ͳtheinteriorwasnotaccessible significance OsterleyPark atthetimeoftheFinialAssociatessurveyin2003).ThebuildingformsaleanͲtoattachedtothenorthwall ofthewalledkitchengardenandsharesthepartitionwallwiththeadjacentcartshed(siteno.152273).Itis builtofyellowstockbrickslaidinFlemishbond,andhasadoublepitchcorrugatedironroof.Thecartshed islocatedinthemosteasterlybay.Ithasapairofbroaddoorsoftongueandgrooveplankconstructionhung onstraphinges.Thesedoorsaresetintoawallwhichprojectsforwardsfromthenorthwallofthebuilding. Themainelevationofthestableblockhastwosetsofdoublehungdoorsofplankconstruction,hungonstrap hinges. Between the head of each door and the brick lintel there is a louvred opening to control the ventilation of the building. Above the west door is a projecting loading bay at first floor level, which incorporatesadoorofplankconstructioncoveredbyadormerroof.Therearefourwindowopenings,paired oneithersideofthedooropenings.Thesehavesegmentalbrickarches.Theupperpartofeachopeningis glazed,thelowerpartlouvred.Apitchingwindowwithaverticalplankdoorisincorporatedintothewest elevation.(1) 97 152211 N/A N/A Local MON Gravel track, Home RaisedgraveltrackrunningacrossthenorthendofHomeFarmField.Thisnarrowfeaturemeasuresc.200m significance Farm Field Osterley inlengthandcurvesonanorthͲeasterlyalignment,commencingwithinthecentresectionofthenorthern Park walledgarden (152208)andterminatingjustaboveAvenueLodge.Itappearstobecutby152210whichis theformercourseofOsterleyLaneheadingnorthfromthewalledgardensandthereforepreͲdatesthis feature.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 98 152214 N/A N/A Regional MON Track in Pond AsharplydefinednorthͲfacinglynchetc.300minlengthmarksthecourseofatrack/roadshownonRocque’s significance Field,OsterleyPark 1741map.TheearthworkisalignedeastͲwestandcurvesaroundthenorthernendofPondField.Itisfaced byalesssubstantialsouthͲfacingearthworklying20mfurthernorthandmeasuringc.110minlength.The location of the earthwork appears to coincide with a gently curving track shown on Rocque’s 1741 (immediatelyabovetheword‘HOUSE’ontheplan),thetrackshownastwoparallelhedgelinesskirting aroundthenorthernedgeofformalparkandheadingtowardstheclusterofpondslatersubsumedinto MiddleLakeandNorthLake.ExaminationofLIDARdatasuggestsminorearthworkscrossingthetrackand alsoearthworkseithersideofthepondthoughthesearedifficulttotraceontheground.Thetwoparallel banksorditchesonthenorthͲwestsideofthepondmaycoincidewithahedgedtrackshownonRocque’s 1741mapwhichcommencesfromthenorthernendoftheavenueandcurvesaroundthesemiͲcircleofthe goosefootinfrontof thehouse.Theintrusivenatureofthistrackontheplansuggestsitmusthaveremained openasapublicfootpath.Theformationofthepond,whichisshownforthefirsttimeonthe1832saleplan, cutsthroughthetrackandithadclearlygoneoutofusebythisdate. 99 152256 N/A N/A Local MON Earthworks in the Raised mound circa 20m in diameter and adjacent LͲshaped bank, possibly spoil dump rather than a significance Great Meadow, deliberategardenfeature OsterleyPark 100 152230 MLO22932 N/A Destroyed MON Linear and circular ThesefeatureshavebeenincludedintheSMRsincetheyliealmostwithintheboundsofOsterleyPark, features under althoughthegridreferencegivenbytheGreaterLondonSitesandMonumentsRecordsuggeststhatthey M4,OsterleyPark would actually lie under the south bank of the M4 motorway. The Greater London SMR provides little information,otherthanrecordinga‘ComplexoflinearandcircularfeaturesdestroyedbytheM4motorway’ (siteno.050827).Nodatefortheirperiodoforiginisgivenandnosuggestionismadeastotheirfunction. TheirformerexistenceisattestedtobyanaerialphotographpreͲdatingtheconstructionofthemotorwayin the1960s(ref.HAS/UK/49/221). 101 152215 N/A N/A Local MON Pond in Pond Alargeovalshapedpondmeasuringapproximately85metresinlength(NͲS)and70metresinwidth(EͲW). significance Field,OsterleyPark ItislocatedinthecentreofPondField,andperhapsoriginallyprovidedasourceofclayforbrickmaking? Perhapsalsogravelformakinguproadsaroundtheparkandgardens.Thereislittleevidenceofspoildumped aroundthepond,whichsuggeststhatwhateverwasexcavatedwasusedelsewhere.Thereis,however,a slightlyloweredareainthenorthbankwherematerialappearstohavebeencartedaway.Thegroundsurface onthenorthbankisalsoratheruneven,suggestingdumpingofalimiteddepthofspoil.Asmallbrickdam builtwithcementhasbeenincorporatedintothesouthͲeastcornerofthepond,evidentlytostopwater spillingawayfromthecornerofthe pond,althoughthedamhasnowbeenbreached. 102 152277 N/A N/A Local BLD Park Farm House, Houselocatedontheeastsideofthemaindrive,builtin1930s,currentlyoccupiedasresidenceandfarm significance OsterleyPark saleslocationbythetenantfarmer. 103 152260 N/A N/A Local MON Brickpavingandiron ThisfeatureliesbeneathandextendstothenorthofalargeoaktreeonthewestbankoftheMiddleLake.It significance grille on the west consistsofanareaofbrickpaving12.8metresinlengthsetonedgeontheerodedbankofthelake.The edgeofMiddleLake, brickshavedimensionsof210x100x60mmsandarepartlysetintothebank,althoughthebulkofthebricks OsterleyPark liebehindthebreakofslope.Atthesoutherntipofthisfeaturethereisafurtherareaofpavingformedof randomsetbrokenhalfbricks,possibly,indeed,almostcertainlyanareaofbrickrubble.3.8metrestothe northofthepavingthereisasmallirongrille190mmsinlengthsetwithinabricksurroundwhichisset back1.2metresfromthebreakofslopeofbank.Thepurposeanddateofthisfeatureremainsuncertainsince itisnotshownonanyofthemaps.Itmayrepresentarevetmentholdingbackthewestbankofthelake, althoughiftherewasthecasethenone wouldexpecttofindmoreevidencefurtheralongthebankineither

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type direction.Thelengthofbrickpavingmayhavefedintothedrainwhichpresumablyliesbeneaththegrille.It isclearthattheareaofbrickremainingisonlyasmallremnantofwhatwasoriginallyalargerfeature,perhaps markingthesiteofaboathouse,orperhapsthesiteofabridgecrossingthelake?

104 152220 N/A N/A Local MON Bank in Nine Acre Averyfaintraisedbankmeasuringbetween5and6metresinwidthcanbetracedonthenorthernedgeof significance Field,OsterleyPark NineAcreField,runningparallelwithandonthewestsideofOsterleyLane.Thedateandpurposeofthis featureremainsuncertain. 105 152261 N/A N/A Local MON Park railings and VerticalspikeparkrailingsflankingeithersideofOsterleyLane.Onthewestsideadoublegateprovides significance gate on the west accessintoHorseFieldandthegatesareornamentedwiththearrowͲheadedfinialsandalsosupportedby side of Osterley curvedbracketsrunningthroughtheconstructionofthegates.Thefenceispartlysubsumedwithinanative Lane,OsterleyPark hedgeandappearstobeamoderninstallation,perhapsreplicatingpartsofanexistingfence? 106 Void Void Void Void Void Void Void

107 N/A MLO2201 N/A Local MON OsterleyPark,[north Complexoflinearandsinuousditchesshownonanaerialphotographdated27thAugust1947(ref5314). significance east of Osterley DescribedasextantontheGLHER. House) {Undated ditchsystem} 108 N/A MLO2174 N/A Local MON Linear ditches in Linearditches,possiblyafieldsystem.Shownonanaerialphotographdated11thMay1955(ref0311). significance Allotment Field, DescribedasextantontheGLHER. OsterleyPark 109 N/A MLO63771 N/A Minimal FS OSTERLEY AnunstratifiedandresidualsherdoflatemedievalpotterywasfoundduringanEvaluationcarriedoutbythe significance ALLOTMENTS, MuseumofLondonArchaeologyServicesinMarch1993.Thiswasprobablyindicativeofagriculturalactivity outsidethevillageofLampton. 110 N/A MLO2197 N/A Local FS Jersey Road/Bassett SherdofbuffunglazedwarefoundbyBLancaster. significance Gardens, [junction with] {Medieval pottery} 111 N/A MLO68847 N/A Documentar MON JERSEYRDHATTON MedievalhamletonthesouthernboundaryofOsterleyPark.Alineof15farmsandcottagesexistedalong y thesouthernsideofJerseyRoadin1636.RecordedonRocqueMapas‘Scratedge’.DescribedinVCHasafairͲ sizedHamletconsistingofscatteredcottage  1.5kmStudyArea   112 N/A MLO11284 N/A NotNT MON Tentelow Lane, A probable Palaeolithic kill site. levallois points with an associatedcomplete, and articulated mammoth Norwood Green, skeletonwerefound5mbelowthebrickearthlevel. Ealing {Palaeolithic killsite}

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 113 N/A MLO2183 N/A NotNT FS OSTERLEYOR Palaeolithiclithicimplement 114 N/A MLO2184 N/A NotNT FS MACKLINSPIT Palaeolithiclithicimplement 115 N/A MLO1355 N/A NotNT FS Windmill Lane LowerPalaeolithicflake {Palaeolithicflakes} 116 N/A MLO2146 N/A NotNT FS PICADILLY LowerPalaeolithiclithicimplement. LINERAILWAY CUTTING 117 N/A MLO2623 N/A NotNT FS OSTERLEY PARK LowerPalaeolithicAxe STATION 118 N/A MLO24440 N/A NotNT MON Grand Union Canal A small circular cropmark, possibly a ring ditch, observed on an aerial photograph dated 15Ͳ15Ͳ45 (ref (south of) {Ring 26585). ditch} 119 N/A MLO10577 N/A NotNT MON OSTERLEY PARK Circularfeaturepossiblyaringditch,observedonanaerialphotographdated12Ͳ5Ͳ51(ref4134). [SOUTHWEST CORNEROF] 120 N/A MLO1950 N/A NotNT MON PYRENE SPORTS SmallringworkcutbyPiccadillyrailwayline. CLUB 121 N/A MLO2173 N/A NotNT MON INDIAN GYMKHANA Circlewithacentralfeature,possiblyaringditch.Observedonanaerialphotograph(ref58455). SPORTSGROUND

122 N/A MLO2189 N/A NotNT FS 160Ͳ162 WOOD LA MiddleBronzeAgeburialurn. NORTH 123 N/A MLO68793 N/A NotNT FS OSTERLEYLA(NOF) LateBronzeAgetoLateIronAgeCoin 124 N/A MLO10581 N/A NotNT FS HESTON ROAD Prehistoriclithicimplement [PLAYINGFIELDOFF] 125 N/A MLO2211 N/A NotNT MON WYKE GREEN GOLF VeryheavyconcentrationoflargecalcineflintsfoundduringfieldwalkingcarriedoutbytheWestLondon COURSE(SEOF) FieldGroup. 126 N/A MLO59689 N/A NotNT FS SYONLA Prehistoricpotteryandlithicimplement 127 N/A MLO2212 N/A NotNT FS SPRINGGROVERD Romancoin 128 N/A MLO2615 N/A NotNT FS SYONPARKGDNS Romancoin 129 N/A MLO71083 N/A NotNT FS Norwood Green ResidualRomanpotterywasfoundduringtwophasesofanevaluationundertakenatElmView,Norwood Road, [Elm View], GreenRoad,bytheMuseumofLondonArchaeologyServiceinJuneandJuly1997. Southall {Roman pottery} 130 N/A MLO10578 N/A NotNT MON PYRENE SPORTS MoatedsitecutbyPiccadillyLinerailway.PossiblythesiteofWykeManor. CLUBGROUNDS 131 N/A MLO68847 N/A NotNT MON JERSEYRDHATTON MedievalhamletonthesouthernboundaryofOsterleyPark.Alineof15farmsandcottagesexistedalong thesouthernsideofJerseyRoadin1636.RecordedonRocqueMapas‘Scratedge’.DescribedinVCHasafairͲ sizedHamletconsistingofscatteredcottagesalongalane. 132 N/A MLO73135 N/A NotNT MON LAMPTON AmedievalsettlementmentionedinVCHandlocatedontheRocquemap.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 133 N/A MLO73148 N/A NotNT MON TENTELOWLA Thesettlementandchurchstoodonthesouthernmostpartoftheparishandwasinexistencefromthe12th century.Theexactlocationisunknown. 134 MLO107738 NotNT PK Norwood Green NorwoodGreenwasvillagecommonlandcentredontheparishchurch,andby1800surroundedbyhousing. Road/Norwood Itwasusedasacricketclubfrom1867andby1935hadchildren’sswingsandfootballpitchesmarkedout. Road/Tentelow Road, [Norwood Green], Ealing, UB2 5QT {former commonland} 135 MLO107744 NotNT PK Tentelow Lane, StMarytheVirginwasachapelofeasewithinHayesparishuntilNorwoodbecameaseparateparishinthe Norwood Green, [St 19th century. Plague burials are recorded in the churchyard, which has a number of fine monuments, Mary the Virgin includingtheRobinsTomb,probablydesignedbySirJohnSoane.Itwasclosedtoburialsin1883. Churchyard], Ealing, UB2 4LG {medieval churchyard} 136 MLO71084 NotNT MON Norwood Green Linearmedievalfeaturesandpitswerefoundthroughtwophasesofexcavationandawatchingbriefat Road, [Elm View], NorwoodGreenRoad,undertakenbyMuseumofLondonArchaeologyService. Southall {Medieval fieldboundariesand pits} 137 MLO71260 NotNT MON Norwood Green ApossibleearlymedievalfieldboundarywasfoundthroughexcavationatNorwoodGreenRoad. Road, [Elm View], Southall {Early medieval field boundary} 138 MLO108929 NotNT PK Heston Road, AchurchonthesitedatesbacktothetimeoftheNormanConquestandwaspartofthemanorofIsleworth Heston[StLeonard’s untilitbecametheseparateparishofHeston.StLeonard’sChurchwaslargelyrebuiltin1866,althoughthe Churchyard and porchandtowerremainsfromthemedievalbuilding.Thechurchyardisenteredthroughalynchgatedating Heston Cemetery), backtoc.1560.TheburialgroundwasextendedwhenHestonCemeterywasadded Hounslow,TW50RD {medieval churchyardand19th centurycemetery} 139 N/A MLO85469 N/A NotNT MON WYKEHOUSE TheManorwasboughtbyJohnHacobin1731,sold1755toPeterfStorerwhosedaughtermarriedWilliam Maker. It was purchased in 1778 by John Robinson MP, one of the secretaries of the Treasury, who substantiallybuiltthepresenthouseintoa"handsomevilla".Afterhisdeathin1802,itwasboughtbythe Earl of Jersey. It was the residence of Edward Ellis and then boarding school under Dr TamiesonͲthe examinationpapersfor1827havesurvived.Itwaslaterconvertedintoahospitalfornervousdisorders.The currentbuildingdatestothelate18thcentury.RobertAdamwasconsultedbyJohnRobinsonMPabout alterations in1778andthesurvivingdrawingsareinSirJohnSoane’sMuseum.Recordsofamanorhouseonthisdate backto1272,andtracesofmoataresaidtosurvive.ThebuildingwasdeͲlisted27thͲ4Ͳ1999.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 140 N/A MLO3286 N/A NotNT MON SYONLA WykeHousewasbuiltforJohnRobinsoninthelate18thcentury.HeapproachedRobertAdamfordesigns foranewhousetoreplacetheoldbuildingshehadpurchasedin1778andthereareseveraldrawingsrelated toWykeHouseinetheSoan museum.ThereisnoevidencethatAdamwaseventuallyemployedonthework. Thehousewasusedasaschoolfrom1820to1840whenitbecameaprivatementalhospital.Itremaineda mentalhospitaluntil1970whenitwasdemolished. 141 N/A MLO59690 N/A NotNT FS SYONLA AnevaluationcarriedoutbyMuseumofLondonArchaeologyServiceuncoverednumerousmoderndeposits consistingmainlyofbuildingdebrisandmoderndumpdeposits. 142 N/A MLO72502 N/A NotNT MON TRUMPERSWAY SiteoflandfilltakenfromtheBritishGeologicalSurveydatasuppliedtotheEnvironmentAgency.Itisnot knownwhetherthissitewasmadeorworkedland,andthedateofinfillisunknown.

143 N/A MLO72661 N/A NotNT MON GREATWESTRD SiteoflandfilltakenfromtheBritishGeologicalSurveydatasuppliedtotheEnvironmentAgency.Itisnot knownwhetherthissitewasmadeorworkedland,andthedateofinfillisunknown.

144 N/A MLO98133 N/A NotNT MON Tentelow Lane [St AwatchingbriefwascarriedoutbyRCowieonbehalfofMoLASonthe5thAugust2003.Graveyardsoiland Mary The Virgin], evidenceforatleasttwo,andpossiblyfourinhumationburialswererecordedinapumppit.Acoffinhandle Norwood Green, andstudsfoundincloseproximity. Southall 145 N/A MLO104889 N/A NotNT BLD Wood Lane, A19thcenturygasfuelledlamppostonWoodLaneneartothejunctionwiththeGreatWesternRoad. Osterley, Hounslow {19th century lamp post} 146 MLO101652 NotNT MON St Margaret’s Theremainsofa19thͲ20thcenturyIronWorkswereidentifiedduringanevaluationbySuttonArchaeological Road/TrumpersWay Services. [Hanwell Locks], Hanwell, Ealing, W7 2NF {20th century IronWorks} 147 MLO104528 NotNT PK Tentelow InitiallycalledNorwoodlodge,NorwoodHallwasbuiltin1901Ͳ3andoncehadextensivegroundsincluding Lane/Norwood pleasure gardens separated from grazing lands by a haͲha. Much of the land was sold off for housing Green developmentfromthe1920s. Road,[Norwood Hall] Southall, Ealing, UB2 {19th centuryGarden} 148 MLO12020 NotNT MON Tentelow Lane, Aboundaryditch,infilledbetween1600Ͳ1800wasidentifiedduringanevaluationatTentelowLane. Norwood Green, Ealing {Post Medievalditch} 149 MLO71263 NotNT MON Norwood Green PostͲmedievalfeaturesconsistingofabrickͲbuiltdrain,asoakawayandtwowellswererecordedduringan Road, [Elm View], excavationatNorwardGreenRoad. Southall {Post medievaldrain}

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 150 MLO71264 NotNT MON Norwood Green AprobablepostͲmedievalquarrypitwasfoundthroughexcavationatNorwoodGreenRoad. Road, [Elm View], Southall 151 MLO73018 NotNT BLD M4 [Osterley Lock], A19thcenturycanallocklocatedtothenorthofthemodernM4. Osterley, Ealing {19th century canal lock} 152 MLO98133 NotNT MON Tentelow Lane [St Graveyardsoilandevidenceforatleasttwo,andpossiblyfour,inhumationburialswererecordedinapump Mary The Virgin], pit.AcoffinhandleandstudsfoundincloseproximitytothehumanremainssuggestapostͲmedievaldate Norwood Green, fortheburials. Southall 153 N/A MLO10579 N/A NotNT MON TRUMPERS WOOD Cropmarksshowingfaintlinearditches,possiblyafieldsystem.Observedonanaerialphotographdated12Ͳ (SOUTHOF) 5Ͳ51(ref3453). 154 N/A MLO2165 N/A NotNT MON OSTERLEYPARK(SW Cropmarksshowingacomplexoflinearfeaturesandpossiblypits.Thefeatureswereobservedonaerial CORNEROF) photographs.NodateisrecordedontheGLHER(refs:9967,58455). 155 N/A MLO2168 N/A NotNT MON INDIAN GYMKHANA Cropmarksshowingacomplexoffaintlinearandsinuousditchesobservedonanaerialphotograph(ref: SPORTSGROUND 58455).

156 N/A MLO2170 N/A NotNT MON Jersey Estate Cropmarksshowingtracesoflinearditches.Observedonanaerialphotographdated21Ͳ5Ͳ1972(ref:087). {Undated linear ditches} 157 N/A MLO2180 N/A NotNT MON SYONLA(EASTOF) Cropmarksshowingapossiblerectilinearenclosureshownonanaerialphotograph(ref58455). 158 N/A MLO4588 N/A NotNT MON NEOF THE AVIARY Cropmarksshowingfaintsinuousditchesobservedonanaerialphotographdated11Ͳ5Ͳ55(ref0365). FARM& 159 MLO108904 NotNT PK St Mary’s JerseyGardenswerelaidoutin1930astheareawasdevelopedonasitewheregravelhadbeenextracted Crescent/Ridgeway forconstructionoftheadjacentGreatWestRoad.ThelayoutfeaturedasubstantialsunkenRockGardenand Road North/Great otherornamentalplantingaswellasrecreationalfacilities.ItisnamedaftertheEarlsofJersey,ownersof WestRoad,Osterley OsterleyParkestate. (Jersey Gardens), Hounslow, TW7 {1930s public gardens} 160 MLO108376 NotNT MON RidgewayRoad,(No Hostel for paraplegics opened in 1949, incorporating a complex of medical services and administrative 36), [Isleworth buildings.Closedinthe1980sandconvertedintoCrownCourtfacilities. Crown Court], Isleworth,Hounslow {Duchess of GloucesterHouse}  AdditionalNTHERdata  

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 161 152293 N/A N/A Regional MON Raised banks ThenorthernandwesternsidesofthePleasureGroundwalkatOsterleyareflankedbylowraisedbanks, significance flanking the commencingfromoppositethenorthernwalledgardensandextendingsouthwardsalmostasfarastheboat Pleasure Ground house.Thebanksmeasurec.0.8minheightandupto8minwidthandprovideamoundfortheplantingof walk at Osterley shrubsandalsohavetheeffectofplacingtheactualwalkasaslightlysunkenpath.Itisassumedthatthey Park datefromtheAdamphaseoflandscapegardeningwhenthePleasureGroundwereextendedwestwardsin the1760s.Ithasbeensuggestedthatthematerialforthebanksmayhavebeenderivedfromtheexcavation oftheparklakes,however,thedeepditchflankingtheperimeterofthenorthernandwesternsideofthe Pleasure Grounds(152294)seemsamorelikelysource. 162 152294 N/A N/A Regional MON Ditch flanking the ThisdeepVͲshapedditchmeasures840minlength,definingtheperimeterofthenorthandwestsidesofthe significance north and west PleasureGroundsatOsterley,andisassumedtodatefromthe1760sextensionofthePleasureGrounds.Its edges of the commencesatitsnorthernendatthetrackleadingtothenorthernwalledgardensandthenextendswest PleasureGroundsat and southͲwestwards, ending at the track leading away from the Boat House Island. A further isolated OsterleyPark northernsection130minlengthsurvivesatthenorthͲeasterntipofthePleasureGrounds,thebreakbetween thetwosectionsmeasuringandcorrespondingwiththesouthernedgeofthenorthernwalledgarden.The ditchmeasuresupto4mindepthandflowsinasoutherlydirectiontowardsthewesternendoftheGarden Lake.Itisshownforthefirsttimeonthe1832saleplanforOsterleyParkwherethegapcorrespondingwith the northern walled garden is also shown. The ditch seems to have served as a combined ‘haw haw’ (boundary excluding animals from the Pleasure Grounds) and also drainage ditch, however, a possible explanationforitsdepthmaybethatithasprovidedasourceofspoilwhichwasthenusedtocreatethe linearmoundsflankingeithersideofthePleasureGroundWalk(site152293). 163 152295 N/A N/A Regional MON Parallellinearbanks Locatedc.130msouthͲwestofthewesterntipoftheMiddleLakethesetwolowparallelbankscanbetraced significance in the NorthͲEast overalengthofabout35m,alignednorthͲsouth.Eachbankmeasuresupto0.3minheightand4minwidth MeadowatOsterley withagapof4mbetweentheinneredgesofthetwobanksor8mbetweentheircentres.Itispossiblethat Park thesebankscorrespondwiththenorthernavenuearisingfromtheGooseFootshownonRocque’s1741plan, inwhichcasetheyarelikelytorelatetothelate17th/early18thcenturyphaseofformallandscapingat Osterley.Thesefeaturesareclosetothelocationofasewagefilterbedshownonanundated‘OldWater Plan’oftheparkandassuchmightrelatetothisfeatureratherthantheavenue. 164 152297 N/A N/A Regional MON Enclosed circular ThisisoneofthreecircularenclosuresaroundplantationsintheGreatMeadow,firstshownonthe1832sale significance tree plantation (NE planforOsterley,althoughprobablydatingfromthe1760sphaseoflandscapingofthepark.Ithasadiameter plantation) in the measuredfromthebankcrestsof47m.Itiscurrentlyenclosedbyarestoredhorizontalbarfencebutthe Great Meadow at presenceofalowbankandexternalditchsuggestsitmayoriginallyhavebeenhedged.Seealso152298and OsterleyPark 152299.Theinterioriscurrentlyoccupiedbymaturetrees. 165 152298 N/A N/A Regional MON Enclosed circular ThisisoneofthreecircularenclosuresaroundplantationsintheGreatMeadow,firstshownonthe1832sale significance treeplantation(NW planforOsterley,althoughprobablydatingfromthe1760sphaseoflandscapingofthepark.Ithasadiameter plantation) in the fromthebankedgesof70m.Itiscurrentlyenclosedbyarestoredhorizontalbarfencebutthepresenceof Great Meadow at alowbankandexternalditchsuggestsitmayoriginallyhavebeenhedged.Seealso152298and152299.The OsterleyPark interioriscurrentlyoccupiedbymaturetrees. 166 152310 N/A N/A Local MON NorthͲeasttosouthͲ 90m long ditch located at the southern end of Shooting Field. Evident on LIDAR data but not currently significance westalignedditchat checkedontheground.ThisfeaturerunsonanorthͲeasttosouthͲwestalignment,terminatedatitssouthern thesouthernendof endbythelaterlynchet152227andterminatedatitsnorthernendbyditch152225.Theidentityofthis Shooting Field, featureremainsuncertain,butitisassumedtorelatetothefarmedlandscapeshownonRocque’s1741map. OsterleyPark ThisshowsasmallfarmsteadonthenorthedgeofWykeGreenwithenclosedfieldsunderpastureandarable.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 167 152314 N/A N/A Local PTH Course of an CourseofaneastͲwestalignedtrackheadingtowardsthenorthͲeastcornerofthewalledgardens(152313). significance informal track in ThisfeaturecanbetracedasaslightlyraisedbankrunningacrossthecentreofHomeFarmField,however, Home Farm Field, evidencefromthe1832saleplanshowsthistrackasleadingeastwardstothepondinPondField(152215) OsterleyPark andwestwardstoskirtaroundthenorthwallofthenorthernwalledgardens(152313).Itprobablyprovided ameansoflinkinggrazedfieldsto thenorthͲwestofthegardens withthepond,providingameansfor livestocktoobtainwater. 168 152316 N/A N/A Regional MON Earthworks defining Depressedareameasuringc.80x30mlocatedinthewoodlandnorthofthemaincarparkdefiningthe significance the original originalendofthelake.Theoutlinesofthelakearethoughttohavebeenlaidoutduringthe1760sphaseof southern end of landscapingandatthattimethesouthernendofthelakeextendedfurthertothesouthͲeastbyabout80 Middle Lake at metres and ended as a curved terminal. This far end is demarcated by a slight northͲfacing scarp slope OsterleyPark measuringmc.30 inwidth.Closertothecurrentendofthelakethereisanarrowdrychannelmeasuringc. 25minlength,10minwidthand1mindepth.Thereductioninthesouthernendofthelakewasmade sometimeafter1832(salemap)andperhapsinthe 1880swhenthecurrentavenuefromstationlodgewas laidout. 169 152299 N/A N/A Regional MON Enclosed circular ThisisoneofthreecircularenclosuresaroundplantationsintheGreatMeadow,firstshownonthe1832sale significance tree plantation (SW planforOsterley,althoughprobablydatingfromthe1760sphaseoflandscapingofthepark.Ithasadiameter plantation) in the fromthebankedgesof73m.Itiscurrentlyenclosedbyarestoredhorizontalbarfencebutthepresenceof Great Meadow at alowbankandexternalditchsuggestsitmayoriginallyhavebeenhedged.Seealso152297and152298.The OsterleyPark interioriscurrentlyoccupiedbymaturetrees. 170 152303 N/A N/A Local MON Linear feature in Linearfeaturec.250minlengthonanorthͲeasttosouthͲwestalignmentidentifiedfromLIDAR,possible significance Scratage Park, extensionoffeature152244whichisthoughttobethesouthernlimitoftheenclosedgardensshownon OsterleyPark Rocque’s1741map.HavingsaidthisthefeatureliesoutsideofthedesignedlandscapeshownbyRocqueand itmaythereforerepresenttheremainsofanagriculturalfieldboundaryortrack.Duringasitevisitmadeon the27thSeptember2019thesitehadrecentlybeenploughedandtherewasnovisibleevidenceofthis feature. 171 152304 N/A N/A Local MON Rectangular feature Rectangular feature suggested by examination of LIDAR data (2019) and parch marks recorded in 2018. significance Ͳsiteofbuilding?in ExaminationoftheLIDARdatasuggestsarectangularstructuremeasuringapproximately20minlengthand Indian Clump Field, 13minwidth,thelongestaxisalignedslightlyskewedfromeastͲwest.Parchmarksrecordedbyadroneflight OsterleyPark in2018(ENA9104)observedthisfeatureaslocatednexttoamaturetree(oak?)andpossiblydividedinto twosectionsbyaninternalboundaryrunningalongitslongestaxis.TheLIDARdatasuggestsadogͲlegged boundaryfeaturesuchasaditchliesonitseastside.Theregularoutlineswouldsuggesttheoutlinesofa buildinginthislocation,althoughnoneisknownfromhistoricmapevidence.Thisfeatureliesonthelineof site152244whichhasbeenpotentiallyidentifiedasthesouthernboundaryofthewalledenclosureshown ontheGlovermapof1635andRocque’smapof1741.ItissituatedonadogͲlegwhichprobablymarksthe cornerofthis17th/18thc.boundaryfeature,suggestingthatthebuilding?Couldalsodatefromthisperiod. The nature of this feature could only accurately be determined by geophysics surveys followed by trial excavation. 172 152305 N/A N/A Regional BOU Brick boundary to Circa1.3kmlengthofbrickͲbuiltwallformingtheboundarytotheeastandsouthͲeastsidesofOsterleyPark. significance the south and east ThewallcommencesfromthefootpathenteringScratageParkandthencontinueseastwardsforabout340m edges of Osterley uptothegatesatthemainentrancedrive.Itthencontinueseastwardsaroundthesouthandeastedgesof Park AllotmentFieldbeforeturningnorthͲeastforafurthertocontinueuptoWykeGreen.Thewallstandstoa heightofc.1.7mandisbuiltinFlemishbondwithabrickcopingofslopingshoulderssurmountedbybricks

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type setonedgeacrossthewidthofthetopofthewall.Intermsofitsdateofconstructionthisremainsuncertain, butitappearstocoincidewiththedarkboundarylineshownonthe1832saleplan.

173 152306 N/A N/A Local MON Linear bank ExaminationofLIDARdatain2019suggestsanarrowlinearbankextendssouthͲwestfromthewesttipof significance indicated by LIDAR theMiddleLakeonanorthͲeasttosouthͲwestalignment,circa80minlength.Asitevisitmadeon27/9/2019 dataatthenorthern attemptedtolocatethisbankbutitwasfoundtobe coveredinimpenetrablebramblesocouldnotbe end of the NorthͲ confirmed.ItssouthͲwestendappearstobeterminatedbythepairofparallelbanks152295.Itmaypossibly East Meadow, coincide with an avenue on this alignment shown on Rocque’s 1741 survey. This linear feature might OsterleyPark representaculvertshownonanundated‘OldWaterPlan’ofthepark.Linearfeature152279ispossiblya continuationofthisfeature 174 152309 N/A N/A Local MON Parallelbanksatthe LocatedatthesouthernendofShootingFieldexaminationofLIDARdatasuggeststwonorthͲeasttosouthͲ significance southern end of westalignedbankssurvivealthoughtheyremainunconfirmedbyfieldͲwalking.Themorewesterlybank Shooting Field. commencesfromthenorthedgeofOsterleyLaneandextendsforabout120m,atwhichpointitisterminated OsterleyPark byditch152225whichisalmostcertainlyalaterfeature.Itisseparatedfromtheeastbankbyagapofabout 10m,thelatterextendingasfaraslynchet152227,andprobablybeyond,thoughithasbeeninterruptedby thelatterfeature.BetweenthetwobanksandnorthofthelynchettheLIDARdataissuggestingtheexistence ofasmallextractionpit.Theidentityofthisfeatureremainsuncertain,thoughpossiblyitoriginatesfroma field boundary shown in roughly this location on Rocque’s 1741 map (Rocque shows a ploughed field associatedwithwhatappearstobeasmallfarmsteadonthenorthernedgeofWykeGreen). 175 152301 N/A N/A Local BOU Field boundaries Hedgesdefinetheoutlinesofthreefields,twounderarableandoneundergrazingonthenorthͲwestcorner significance defining Orchard oftheTrust’sOsterleyestateoutsideofthePleasureGrounds.ThelargestnorthernfieldisOrchardField Field,HollyFieldand whichisroughlyrectangularinshapeandfollowsthecourseoftheM4motorway.Thetwosmallersouthern Yard Paddock at fieldsͲHollyFieldandYardPaddockͲareflankedontheirsouthernmarginbyadrainageditchemanating OsterleyPark from the deep ditch around the Pleasure Grounds (152294). This ditch roughly follows the course of a ‘Footway’shownonthe1832saleplanofOsterleyPark.Amoderntrackrunsbetweenthethreefields.The outlinesofthesefieldsdonotcorrespondwiththoseshownonthe1832planandtheymustpostdatethe map,asdoesthecuttingofthedrainageditch.ExaminationoftheLIDARdatasuggeststhattwoparallel ditchesrunthroughYardPaddockonanorthͲeasttosouthͲwestorientation,evidentlyanolderfeaturepreͲ datingthecurrentconfigurationofthefields. 176 152292 N/A N/A Local MON Site of suspected Thissiteisclearlymarkedbyalargecircularpitmeasuring17mindiameterandmarkedbyalowrimofspoil significance bomb crater on the onitsedgemeasuringupto3minwidthand0.3minheight.Thedepthfromthetopoftherimtothebase north side of the ofthepitmeasuresc.1.2mindepth.ThepitcutsthroughtheinnerraisedbankflankingthePleasureGround PleasureGroundsat walk(152293)andmustthereforepostͲdatethisgardenfeature.Thispitisassumedtobeabombcrater, OsterleyPark althoughthereisnoassociatedevidenceofadditionalpitssuggestingastickofdroppedbombs.Thepresence ofthespoilaroundtherimseemstosupportitsidentificationasabombcrater. 177 152311 N/A N/A Minimal MON Linear bank? LinearbankrunningnorthͲeasttosouthͲwestacrossShootingFieldandintothecentreofHorseField.C. significance Running across 320minlength.LIDARdatasuggestsitcutsacrossWindmillLaneandOsterleyLanetogetherwithother Shooting Field, earthworkfeaturesinShootingField.Thelikelihoodisthereforethatitcorrespondswithamodernservices OsterleyPark trench.

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 178 152312 N/A N/A Minimal MON BankrunningnorthͲ LinearbankcrossingShootingFieldandcontinuingHorseField,probablymodernserviceroutesinceitcuts significance east to southͲwest acrossandcontinuesbeyondWindmillLaneandcutsacrossallotherearthworksinShootingField across the northern end of Shooting Field,OsterleyPark 179 152307 N/A N/A Minimal MON Site of silt dredged ArectangularUͲshapeddepression60minlengthand0.3mindepthedgedonthreesidesbyslightscarp significance from the Middle slopesmarksthesiteofwhatisbelievedtobesiltdredgedfromthelakeinthelate1980s.Runningnorth LakeatOsterleyPark fromthedepressionisawestͲfacingscarpslopeandbeyondthisa5mwidebank0.2mhighalignednorthͲ westtosouthͲeast.Thelatterbankflaresoutwardsslightlyatitssouthernend.Itcontinuesthealignmentof the west side of the Middle Lake and may coincide with the square outline of the pond shown on the Rocquemapof1741beforeitwasenlargedinthe1760s. 180 152308 N/A N/A Regional MON NorthͲwest to Slight bank c. 300m in length suggested by examination of LIDAR data, not currently confirmed by significance southͲeast aligned examinationontheground.ThefeaturecommencesattheestateboundarywithWindmillFieldandextends bank in Shooting acrossShootingFieldtothesoutherntipofthewoodlandsurroundingNorthLake.Itrunsparalleltoand Field at Osterley northofthemoreprominentditch152225,thoughseparatedbyagapof22m.Possiblyassociatedwiththe Park 20thc.shootingrange(152223).Itappearstobeoverlainbythe graveltrack152224. 181 152296 N/A N/A Local MON OvalͲshaped pit in AsmallovalͲshapedpit18meastofthecentreoftheJubileeLodgedrive.Thepitmeasures7x6mand0.3m significance the NorthͲEast indepth.Thereisnosignofspoilassociatedwiththepit.Neitheristherespoilaroundtherimwhichisoften MeadowatOsterley associatedwithaWWIIbombpit.Itmaythereforehavebeendugforprovidinggravelforadrive,although Park thismightbeslightlyoddwithinalandscapedpark.AlargeclumpofboxliesslightlytoitsnorthͲwest. 182 152300 N/A N/A Local MON Linearearthworksin ExaminationoftheLIDARdatasuggestsacomplexofditchesorgulliesextendsacrossthewidthofthecentral significance the Great Meadow sectionoftheGreatMeadow,however,theseremaindifficulttotraceontheground.Duringafieldvisit atOsterleyPark (27/9/2019) it was possible to trace two of the three southern ditches lying immediately east of tree plantation152299.OneoftheseextendsNWfromthenorthbankofthegardenlakeforadistanceofc.130m andisjoinedbyasecondditchextendingwestwardsforafurther130m.Thissecondditchassumesaslight doglegatitswestend.Bothoftheseditchesmeasurec.2minwidthandnomorethan0.1mindepth.The thirdditchclosesttotheplantationcouldnotbetracedontheground.Examinationonthegroundofthe morenortherlyclusterofditchesbetweenplantations152297and152298failedtorevealanyevidencefor these.TheymayhavebeencutasshortͲtermdrainageditchesbutthereisnoevidenceofacorresponding bank.Thereisapossibilitythattheyarenarrowtrackwayswiththe gulliesformedbyerosionoveralong period,howeverthisalsodoesnotseemveryplausible.ThereisnoevidenceofthesefeaturesonRocque’s 1741mapͲRocqueshowsthisareaofthemeadowoccupiedbythreeavenuesradiatingoutfromaformal pond,however,noneoftheLIDARtranscribedfeaturescorrespondwiththealignmentoftheseavenues. 183 152302 N/A N/A Local BOU Bank defining the Faint trace of a linear bank evident on LIDAR forming the boundary between these two arable fields at significance boundary between Osterley,extendingc.100minlengthonanorthͲeasttosouthͲwestalignmentbetweentheditchdefining Scrattage Field and theedgeofthePleasureGroundsandtheouteredgeofthepark. TheLongMeadowat OsterleyPark 184 152317 N/A N/A Local MON Area of ridge and Anareaofridgeandfurrowmeasuringapproximately0.75hectaresisvisibleonLiDAR.Itislocateddirectly significance furrow in the totheeastofpond152215andisbetweentrackway152214andpossibleheadland152279.Theridgeand northern part of furrowareapproximately80mlongandarealignednorthͲwesttosouthͲeast Osterleypark

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 185 152318 N/A N/A Local MON Linear features in TwoparallellinearfeaturesarevisibleonLiDARbetweentrackway152214andsmallpond152215.Theyare significance thenorthernpartof 6m apart. The southͲwestern linear is approximately 80m in length and the northͲeastern one is OsterleyParktothe approximately40minlength. southͲeast of AvenueLodge 186 152319 N/A N/A Local MON Linear features in ExaminationofLiDARdatasuggeststhepresentofthreelinearfeatures(possiblyditches)inthenorthern significance thenorthernpartof partoftheparktotheeastofAvenueLodge.Thesearelocatedbetweentrackway152214andtheedgeof Osterleytotheeast thepark.Oneditchwhichisapproximately110minlengthextendsfromthesiteboundarysouthandturns ofAvenueLodge eastwards.Ashortlengthofditch(alignednorthͲwesttosouthͲeast)extendsfromthisfirstditchtotrackway 152214.AnotherditchalsoalignednorthͲwesttosouthͲeastextendsfromthefirstditchnorthwardstothe siteboundary. 187 152320 N/A N/A Local MON Linear features ThreelinearfeaturesvisibleontheNationalTrustLiDARonthesouthͲeasternbankoftheMiddleLaketothe significance adjacent to the site northofspoilheap152307.ThenortherntwolinearfeaturesareparallelandalignednorthͲwesttosouthͲ of spoil heap east.TheseextendfromtheedgeofthelakesouthͲeastforapproximately45m.Thesouthernlinearfeature associated with silt extendsfromthespoilheapnorthandstopsjustbeforethenortherntwolinearfeatures. dredged from the MiddleLake 188 152321 N/A N/A Local MON Linearfeatureinthe Acropmarkvisibleonsatelliteimageryfrom2017crossingthenorthernpartofthefieldtowestofOsterley significance northern pat of the Lane.ThelinearfeatureisalignednorthͲwesttosouthͲeastandisapproximately130minlength.Thisis field to the west of possiblyacontinuationoflynchet152227 OsterleyLane 189 152322 N/A N/A Local MON Linearfeaturetothe TheNationalTrustrecordedafeature,possibly17thcenturyindate,paralleltoOsterleyLane,inthenorthͲ significance northͲeast of westerncorneroftheShootingField.AnexaminationofLiDARindicatesthatthisfeatureextendsfurther OsterleyLane southandstopsatlynchet152227.Intotalthisfeatureis320mlongand7mwide.Itisparalleltolinear feature152323whichis30mtothenorthͲeast. 190 152323 N/A N/A Local MON Linearfeatureinthe AlinearfeatureisvisibleonLiDARcrossingthecentreoftheShootingField.ThefeatureisparalleltoOsterley significance ShootingField Laneandlinearfeature152322.Itisapproximately145minlengthandextendsfromparallelditches152309 to ditch152310andcrosses/crossedbyditch152225 191 152324 N/A N/A Local MON Ditchinthenorthern AditchisvisibleonLiDARinthenorthernpartoftheShootingFieldanddemarcatesthewesternboundary significance partoftheShooting ofanareaofwoodland.TheditchisalignednorthͲwesttosouthͲeastandis80mlongand7mwide. Field 192 152325 N/A N/A Local MON Linear feature Alinearfeature,120mlongand6mwideisvisibleonLiDARintheeasternpartoftheshootingfield.Itis significance towardstheeastern alignednorthͲwesttosouthͲeastandisparalleltofeaturesassociatedwiththeriflerange boundary of the ShootingField 193 152326 N/A N/A Local MON A linear feature Alinearfeatureapproximately95mlongand5mwideisvisibleonLiDARintheeasternpartoftheShooting significance towardstheeastern Field.Itisparalleltoandapproximately6msouthͲwestoflinearfeature152226andpossiblyrelatestothe boundary of the riflerange. ShootingField 194 152327 N/A N/A Local MON Linearfeatureinthe AlinearfeatureisvisibleonLiDARinthenorthernpartoftheShootingField.ItisalignednorthͲeasttosouthͲ significance northernpartofthe westandisapproximately90mlong.Itislocatedbetweenabankandaditchthoughttobeassociatedwith ShootingField anavenueshownonRocque’sMap

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OA NTSMRNo GLHERRef NHLE Grade/NT Record Name Description Ref significance Type 195 152328 N/A N/A Local MON Two linear features Twoshortlengthsofditch,whichintersect,arevisibletowardstheeasternboundaryofthesite.Thefirst significance intersectingtowards ditchisalignedNNEtoSSWandisapproximately35minlength.ThesecondditchisalignedWSWtoENEand the eastern is30minlength. boundary of the park 196 152329 N/A N/A Local MON Two parallel Two parallel cropmarks are visible on satellite imagery and photographs taken during a drone survey significance cropmarks crossing commissionedbytheNationalTrust.Thecropmarkisalignedeasttowestandextendsapproximately350m thefieldtothewest acrossthefieldtothewestofOsterleyPark.Thecropmarksmightrepresentaformeravenueoratrack ofOsterleyLane visibleintheeasternpartoftheparkonRocque’sSurveyofLondon. 197 152330 N/A N/A Local MON A cropmark in the Acropmarkisvisibleonsatelliteimageryandonphotographstakenduringadronesurveycommissionedby significance field to the west of the National Trust. The cropmark is aligned WNW to ESE and is approximately 140m long. It is located OsterleyLane betweentheeasternboundaryofthesiteandapossibleavenueortrackway152329. 198 152331 N/A N/A Local MON Linearfeaturetothe AlinearfeatureisvisibleonLiDARtotheeastofOsterleycarpark.Itisapproximately145mlongand8m significance east of Osterley car wideandextendsfromasmallhollow152233toabank152238 park 199 152332 N/A N/A Local MON Linear feature to LinearfeaturevisibleonLiDAR.Itisapproximately75longandisparalleltoand20msouthͲwestoftheformer significance southͲeast of courseofOsterleyLane Osterleycarpark 200 152333 N/A N/A Local MON Parallel linear TwolinearfeaturesarevisibleonLiDARtotheeastofHouse152277andtheformercourseofOsterleyLane. significance features to the east Thefeaturesareapproximately60mlongand5mapartandarealignedWNWtoESE. of Osterley Farm Shop 201 152334 N/A N/A Local MON Linearfeatureinthe Alinearfeatureisvisibleinthesoutheasterncornerofthepark.ItisalignednorthͲeasttosouthͲwestand significance southͲeastcornerof extendsfromthesiteboundarysouthͲwestwardsfor170m. thepark 202 152335 N/A N/A Local MON Linearfeatureinthe Alinearfeatureapproximately240minlengthisvisibleonLiDAR.Itispossiblyacontinuationofbank152243 significance southernpartofthe recordedbytheNationalTrust. park 203 152336 N/A N/A Local MON Parch marks on the ParchmarksarevisibleonphotographstakenduringadronesurveycommissionedbytheNationalTrustto significance lawn to the northͲ thenorthͲeastoftheOsterleyHouse.Theparchmarksformarectangleapproximately80mby80mwith east of Osterley someinternallinearfeaturesthatlikelyrelatetoaformalgardenwhichisnolongerpresent House 204 152337 N/A N/A Local MON Buildings associated Parchmarksvisibleonsatelliteimagerydepictingatleast15buildingalongthenorthernboundaryofthe significance withthePOWcamp fieldandpossiblyanotherthreealongtheeasternboundary.Thebuildingsareapproximately18.5longand inthefieldknownas 5.5wide.TheyrelatetotheGermanPOWcamp.Intheeasternpartofthefieldtherearealsopathways ‘TriangularClump’ visibleextendingfromthesiteboundarytothebuildingsalongtheeasternboundary 205 152338 N/A N/A Local MON Mound adjacent to AlowmoundisvisibleonthewesternandnorthernsideofatreeonLiDARandwasconfirmedduringthe significance the POW camp in sitewalkover.Thefunctionofthismoundisnotclearbutmightbeassociatedwiththedecommissioningand the field known as dismantlingofthePOWcamp. ‘TriangularClump’ 

©OxfordArchaeologyLtd 86 13May2020    OsterleyPark,Hounslow  1  PreviousArchaeologicalInvestigationswithinthesite  NTSMRNo. GLHERRef. RecordType Name Description ENA2293 n/a Event Archaeological Property Survey of ArchaeologicalsurveyofOsterleyParkundertakenbyGMarshallin2000.40blackandwhiteprintsheldas OsterleyPark partofarchaeologicalarchivedepositedatWansdyke

ENA2304 n/a Event Watchingbriefmaintainedoverrepairs WatchingbriefundertakenbyOliverJessopoveralterationstothestablesandovertheexcavationofservice and alterations to the stable block at trenchesinthestableyard. OsterleyPark

ENA2306 n/a Event Watching brief over the excavation of WatchingbriefundertakenbyAngusWainwright three tree pits in the stableyard at OsterleyPark ENA2307 n/a Event Watching brief over a service trench WatchingbriefmaintainedbyAngusWainwrightoveratrenchbetweenthewestwingofthestablesandthe betweenthestablesandhouse,Osterley northdoorofthehouse. Park

ENA2308 n/a Event Watchingbriefoveratrenchalongthe WatchingbriefbyAngusWainwrightoveratrenchbeginningfromthenorthͲwesttower,feedingintoan northwallOsterleyPark,1992 existingdrain

ENA2309 n/a Event Watchingbriefafterliftingofthelower WatchingbriefbyAngusWainwrightafterthelowerflightoftheeaststepswereliftedandrelaid. flighteaststepsOsterleyPark,1992

ENA2310 n/a Event Watching brief maintained whilst Watchingbrief maintainedbyAngusWainwrightafterpanellingwasliftedfromthe northwall,revealing removing panelling north wall of the severalphasesofbrickconstruction. northrangeatOsterleyPark,1992

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NTSMRNo. GLHERRef. RecordType Name Description ENA2311 n/a Event WatchingbriefoverrepairstotheLong WatchingbriefbyAngusWainwrightafterrepairstofailedbrickworkandrottenwindowframes. Gallery,OsterleyPark,1993

ENA2312 n/a Event Watching brief over trial trenches to Watching brief by Angus Wainwright over a series of trial trenches cut to locate the Victorian drive locate the east front drive Osterley approachingtheeastfront.SameasENA5576. Park,1993

ENA2313 n/a Event Recording of the east wing of the ArchitecturalrecordingcarriedoutbyOAUtotheeastwingofthestablespriortoconversion stables,Osterley,1994

ENA2314 n/a Event Architectural appraisal of the stable ArchitecturalappraisalofthestablesbyOAUincludingtheproductionoffloorplansanddrawingsoftheroof blockatOsterley,1991 trusses.

ENA2315 n/a Event Watchingbriefduringconstructionwork WatchingbriefbyOAUoveratrenchacrossthesouthsideofthestableyardandthreetreepitsbetweenthe ͲStableBlocks,Osterley stableyardandthehouse.

ENA2316 n/a Event Recordingofthefloorofthepigeonloft Recordingofthefloorjoistsofthepigeonloftandsurroundingdetail,undertakenbyOliverJessoppriorto overthecarriagearchatOsterleyPark repairs.14BlackandwhiteprintsheldinOsterleyarchaeologicalfoldersdepositedatWansdyke

ENA2363 n/a Event Excavation of footings in trench 18 ExcavationandrecordingofbrickfootingsbyGMarshallandMSolikintrench18,dugbycontractorsfor alongsidetheformerbarn,OsterleyPark buryinganelectricalcable.Planandsectiondrawnplusphotographs.

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NTSMRNo. GLHERRef. RecordType Name Description ENA2425 n/a Event Repairs, northͲwest corner above Northwallstrippedin1980,revealingawindowinthecentreblockedwith18thc.?Bricks. Gallery,Osterley

ENA2426 n/a Event Excavations around Garden House, BrickdrainsdiscoveredinexcavationsfornewpatharoundtheGardenHouse.Notesandsketchesproduced OsterleyPark byNTarchaeologistAngusWainwright

ENA2427 n/a Event Brickstepsrevealedbeloweastportico, Brickstepsrevealedwhilstrelayingexistingstepstotheeastportico Osterley

ENA2436 n/a Event Photography,westwall,KitchenGarden, Rectifiedphotographyofthewestwallofthegardenpriortorepairs Osterley

ENA3922 n/a Event OsterleyParkgeophysicalsurvey SurveyinvolvingresistivityandmagnetometryundertakenbytwostudentsfromtheUniversityofEastLondon onthemainlawn(eastfront).ThesurveypickeduptheoutlinesoftwoLilyPondscreatedinthe1930s.

ENA3923 n/a Event Surveyofthefarmbuildings,ParkFarm, SurveyofthebuildingsatParkFarmbyDrJamesMoirofFinialAssociates.Papercopiesofthereportheldas Osterley partoftheRegionalArchaeologicalArchiveͲalsoonCD.

ENA3924 n/a Event Geophysics survey of the site of the Resistivitysurvey(Ost3)ofthesiteoftheOrangerybyRegionalArchaeologistGaryMarshall.Three20mgrids OrangeryatOsterleyPark completed.

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NTSMRNo. GLHERRef. RecordType Name Description ENA3925 n/a Event Recordingofwallfootingsnexttotoilet ThreesmalltrencheswereexcavatedduringNovemberof2006toexplorethesourceofawaterleak.Twoof block,OsterleyPark thetrenchesexposedalengthofbrickwall,thoughttobe16thor17thc.Photographsweretakenby Property ManagerSianHarrington.

ENA4043 n/a Event Geophysicssurvey(Ost8)ofpartofthe ResistivitysurveybyRegionalArchaeologistGaryMarshallof3x20metregridsonthelawnadjacenttothe PleasureGrounds,Osterley northͲwestcornerofthehouse,undertakentolocatethepathshownonthe1838map.

ENA4761 n/a Event Geophysics survey of the American ResistivitysurveyoftheAmericanGardenatOsterleyundertakenbyRegionalArchaeologistGaryMarshall Garden,OsterleyPark andgardensresearcherHeleneGammack.Surveyundertakentotryandlocatethecomplexofzigzagpaths shownonthe1832estateplan.3x20mx20m

ENA5513 n/a Event Archaeological building assesment of AssesmentofbuildingasreceivedbytheTrustasalegacyfromthepreviousowner.Projectarchivedeposited SalopianHouse,Isleworth withRegionalArchaeologicalArchive.AssignedLAARCaccessionnumberLOR08(MOL,LAARC).

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NTSMRNo. GLHERRef. RecordType Name Description ENA5574 n/a Event Geophysicssurveyoflawnoppositethe Resistivitysurvey(Ost10)byRegionalArchaeologistGMarshallandvolsPeterBushandJonStacey.4x20m toiletblock,OsterleyPark gridsat1mintervals,undertakenforthepurposeofevaluatingabrickwallfootingfoundinatrenchin2006 (seeeventno.ENA3925).Thissurve

ENA5575 n/a Event Geophysics survey of earthwork in SurveybyRegionalArchaeologistGMarshallandvolsPeterBushandJohnStaceyoverlinearearthworkͲ IndianClumpField,OsterleyPark possiblecourseof20acreenclosureshownonGloverandRoquemaps.1x20metresquareat1metre intervals.

ENA5576 n/a Event Watching brief over trial trenches to WatchingbriefbyprojectarchaeologistAngusWainwrightovertheexcavationofaseriesoftrialtrenchesdug locatetheVictorianmaindrive,Osterley tolocatethe19thcenturydriveleadinguptotheeastfrontofthehouse.Sixtrenchesmachinedug.Hoggin Park,1993 baseforthedrivediscovered,as

ENA5996 n/a Event The Late Eighteenth Century Kitchen, SurveyofCellarroomsanddiscussionoftheirpossibledevelopment. OsterleyHouse

ENA6225 n/a Event Excavation of two trenches to locate Excavation,surveyandresearchbytheDiggingDad'sArmyproject evidence associated with the use of OsterleyParkasthetrainingschoolfor theHomeGuard

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NTSMRNo. GLHERRef. RecordType Name Description ENA6336 n/a Event Dowsing survey undertaken on the Dowsingsurveyoverthesiteofwhatarethoughttobe16th/17thcbuildingsontheedgeofthemeadow meadow,OsterleyPark undertaken by volunteer Laurie Booth. Results gave outlines for the buildings with doors, windows etcͲ dimensionedplanprovidedbyLaurieBooth

ENA6422 n/a Event GeophysicssurveyoftheGreatMeadow Resistivitysurveyof11x20metregridsundertakenbyregionalarchaeologistGaryMarshallandvolunteers atOsterleyPark to assess possible footings in the meadow opposite the toilet block (Ost14). Repeat of 2009 survey area (ENA5574).SeealsoENA6336dowsingsurvey

ENA6942 n/a Event Doorway revealed in the north wall of Removal of wallpaper from the east wall of the yellow breakfast room revealed the frame for a blocked theYellowBreakfastRoom,Osterley doorwayͲseeattachedphotograph

ENA7138 n/a Event Gardenssurvey,OsterleyPark SurveyofthegardensatOsterleyundertakenbyanMSCteamledbyAITait

ENA7254 n/a Event RecordingofthenorthwalloftheYellow 1:20drawingofnorthwallbyRegionalArchaeologistGaryMarshalltorecordbattens,nailsetcforprevious BreakfastRoom,OsterleyPark paperhangings.Alsopositionofblockedopening.Photostaken.Additionalphotostakenon23/3/2015and 26/5/2015duringadditionalsitevisits.

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NTSMRNo. GLHERRef. RecordType Name Description ENA8022 n/a Event Archaeological search of Osterley Area OverviewͲThegravelanddriftcoveredterracesoftheriverThamesareknowntobeanimportantsourceof arising from a planning proposal north archaeologicalinformationandtohavehadacontinuityofearlysettlementArtifactsandstructuralevidence andeastoftheproperty examinedandfindslistedchronologic

ENA8040 n/a Event Notes on Archaeological work at East Thisisnotafullarchaeologicalsurvey.Thenotestakenduringthisshortinvestigationwillhopefullyactasa StableFlatOsterley usefulstartingpointforafuturefullanalysisofthesebuildings.

ENA8041 n/a Event NotesonthestableblockatOsterley ThesenotessupplementtheseparatereportsontheWestWingandtheEastStableFlat.

ENA8052 n/a Event Notes on the west wing of Osterley DescriptiveassessmentbyNTarchaeologistAngusWainwright StableBlock

ENA8318 n/a Event Recording of east pediment detail and PhotosandobservationstakenbyNTbuildingsurveyorGilesGriffithsduringrestorationofthepedimentdetail woodenboardingtodies,OsterleyPark andafterremovalofmoderncladdingonthedies.PhotosalsotakenbyNTarchaeologistGaryMarshallof struckpointinganddetailofcutjoi

ENA8326 n/a Event Recording of floor joists on the upper RecordingbybuildingsurveyorGilesGriffithsofpossibleconcealedfloor floorandnorthcorridoratOsterleyPark

ENA8640 n/a Event Historic Park restoration plan, Osterley PlanpreparedaspartofaCountrysideStewardshipScheme Park

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NTSMRNo. GLHERRef. RecordType Name Description ENA8654 n/a Event Recordingofexposedbrickworkonthe PhotostakenbyNTarchaeologistGaryMarshallofexposedbrickworkaftertheremovalofcementrender. westfrontstepsatOsterleyPark Removal of 1970s? Render revealed traces of surviving limewash on the rear of the north set of steps, Westmorelandslateusedasadampproofmembrane

ENA8704 n/a Event Geologicalanalysisofthestonesusedin AnalysisundertakenbyRuthSiddallofUCLaspartoftheLondonPavementGeologyproject theconstructionofOsterleyPark

ENA8773 n/a Event Exposure of garden wall footings at Exposureofsectionofgardenwallduringgroundreductiontoinstalltwogardenbenches OsterleyPark

ENA8781 n/a Event Conservation plan for the stables at ConservationplanpreparedbyThePaulDruryPartnership OsterleyPark

ENA8786 n/a Event Brickchamberdiscoveredonthenorth Circularbrickchamberc.2mdeeprevealedunderastonecoverduringworkstoinstallanewsurfaceonthe sideofOsterleyHouse northsideofOsterleyHouse.PhotosandplanforwardedbyNTbuildingssurveyorGilesGriffiths.Seenotes

ENA8807 n/a Event Photographstakenofadrainagetrench PhotostakenbyNTbuildingssurveyorGilesGriffithsofatrenchdugtolayadrainagepipeoverthetopofan ontheeastfrontatOsterleyPark existingdrain.Anarchaeologicalwatchingbriefwasnotmaintainedasthetrenchhadnbee previouslycut, however,recordphotosweretaken.

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NTSMRNo. GLHERRef. RecordType Name Description ENA9104 n/a Event UAV photo survey of parch marks at UAVflowncameraflightofparchmarksatOsterleybyfreelancephotographerMarkSmeaton.Eastandwest OsterleyPark lawnscovered,also'HospitalField',fieldseithersideofmaindriveanddrivewithshootingbutt.

ENA9105 n/a Event UAVphotosurveyofparchmarksonthe AerialphotostakenofparchmarksonthewestlawnbyfreelancephotographerMarkSmeaton westlawnatOsterleyPark

ENA9106 n/a Event UAVaerialphotographyofparchmarks AerialphotostakenwithaUAVbyfreelancephotographerMarkSmeaton inwestmeadowatOsterleyPark

ENA9113 n/a Event Photostakenofparchmarksonthesite PhotostakenbyNTarchaeologistduringdronemountedcamerasurveybyMarkSmeaton,possibleSWcorner oftheOrangeryatOsterleyPark andsouthedgerevealedbydifferentialdryingout

ENA9172 n/a Event Geophysics (resistivity) survey of the SurveybyNTarchaeologistGaryMarshallandvolunteerstoassessearthworksonthewestfront,9of20x GreatMeadowatOsterleyPark(Ost1) 20msquarescompletedat1mintervals

ENA9173 n/a Event ObservationsonOsterleyHouse ObsservationsmadeduringavisitbyFrankKelsall,RichardHewlingsandEileenHarris

ENA9174 n/a Event Documentary and archaeological AppraisalbyformervernacularbuildingsurveyorJeremyLake appraisalofthestablesblockatOsterley Park

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NTSMRNo. GLHERRef. RecordType Name Description ENA9228 n/a Event Recording of exposed brickwork in the MeasuredsurveyandphotostakenbyNTbuildingsurveyorGilesGriffithsaftertheremovalofplasterfrom flowerarrangingroomatOsterleyPark thesouthwall.Thisledtotheexposureofaverticaljointinthewallandahorizontallacingtimberorperhaps forsecuringafixture.

ENA9239 n/a Event Recording of exposed brickwork in the Recordingofbrickdetailonthesouthwalloftheflowerarrangingroomandwestwallofthewestpassage basementofOsterleyPark

ENA9475 n/a Event AssessmentofthevariousRobertAdam AssessmentofhistoricdocumentsrelatingtoRobertAdamdesignschemesforOsterleyͲseealsoENA5996. designschemesforOsterleyHouse

ENA9476 n/a Event SurveyoftheouterparkatOsterleyPark SurveyandrestorationplanundertakenbyCoreenRenowClarke

ENA9477 n/a Event Notesandcollectionofdatesrelatingto NotesandcollectionofdatesrelatingtothedevelopmentofthePleasureGroundsatOsterleyPark the development of the Pleasure GroundsatOsterleyPark

ENA9515 n/a Event Recording of walls and fixtures and RecordingbyNTarchaeologistGaryMarshallofthewallsandfloorandfixturesandfittingspriortoconversion fittings in the former metals store at oftheroomtobeusedasaboilerroomassociatedwiththerenewableenergyschemeͲ1:20scaleplanofthe OsterleyPark southandeastwalls,1:50scale

ENA9520 n/a Event DeskbasedassessmentofOsterleyPark Archaeological survey of Osterley Park undertaken as a supporting document to the main conservation managementplanundertakenbyDonaldInsall

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NTSMRNo. GLHERRef. RecordType Name Description n/a ELO1223 Event OsterleyPark,[OsterleyHouseStables]: OxfordArchaeologicalUnitconductedabuildingassessmentonbehalfoftheNationalTrust(Thamesand HistoricBuildingRecording ChilternRegion)atthesiteofOsterleyParkStables.Theevaluationreportedseveralstagesofdevelopment althoughthestablesarestronglyassociatedwiththetimeofSirThomasGreshaminthemidtolate16th century.

n/a ELO1226 Event OsterleyPark,Isleworth,Middlesex Acomprehensiveprogrammeofmonitoringwasundertakenduringtherefurbishmentofthestableblockat OsterleyPark,Isleworth,MiddlesexthroughoutJanuaryͲFebruary1999,bytheNationalTrust.Observations solelyfocusedonthestandingfabricofthestables,althoughsubͲsurfaceexcavationswereconsultedwere necessary.Internalobservationsweremadewhensurfacefinishesorinternalpartitionswereremoved,floor coveringsliftedandnewopeningscreated.Recordinginvolveddetailedsitenotes,plansandsectiondrawings andafullphotographicarchive.Itwasnoticedthatsuccessivealterationshavedestroyedevidencerelatingto earlierlayoutsandthefunctionofindividualrooms.Phase1Ͳthewestandnorthwingswerebuilt(1570Ͳ 1580);Phase2Ͳconstructionofeastwing,northeastbarnandturrets;Phase3Ͳwestwingalteredfrom domestictolaundry,bakehouseandbrewhouse;Phase4ͲnorthͲeasternthreshingbarnadaptedtohousea pigeonloft;Phase5ͲFloorraisedinNewKitchenandCoachͲHousesbuilt;Phase6ͲNortherncoachͲhouse blockedandplumbingsystemaltered(19thcentury);Phase7ͲFloorreplacedinbrewhouseandextensive internal alterations (1960s); Phase 8Ͳrefurbishment by National Trust (1989); and Phase 9Ͳfurther refurbishmentbyNationalTrust(1999).Noneof thestructuresassociatedwiththebrewingprocesssurvive here,andconsideringtheamountofequipmentusedwithinsuchanindustryitissurprisingthatnonehas beenfound.

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NTSMRNo. GLHERRef. RecordType Name Description n/a ELO1227 Event OsterleyPark,Isleworth,Middlesex AsecondphaseofthecomprehensiveprogrammeofmonitoringOsterleyPark,Isleworth,Middlesex,was undertakenduringtherefurbishmentofthestableblockatOsterleyPark,Isleworth,MiddlesexinMay1999, bytheNationalTrust.Observationstooknoteofthepigeonloftabovethecartpassagethroughtheeastern barn. Thisprovidedtheopportunitytorecordtheconstructionoftheloftanddocumentitssubsequentalterations. ThiswasduetotheceilingofthepassagewaythroughthenorthͲeasternbarnbeingbowedexcessivelyand wasinneedofimmediaterepair.Asaresultthearchaeologicalworkgreatlyinformedtheprocessofrepair.

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NTSMRNo. GLHERRef. RecordType Name Description n/a ELO1228 Event OsterleyPark,[OsterleyHouseStables]: InMarch1991inthestablecourtyardthreetreeͲpitswereexcavatedtoaccommodateHorseChestnuttrees. Watchingbrief Thepitswereroughlythreemetresacrossbyametreandahalfdeep.Theycutthroughanumberofdeposits toreachanundisturbedbrowngravelyclay.Pit1showedsomebrokenbrickandathinlayerofmortarthat couldbetheremnantsoftheoriginalTudoryard.Itmayberelatedtothefirstphaseofalterationinthe18th centurybutwascoveredafter1717,ahalfpennycoinof1717providingaTPQdate.In1787thecoachyard waspaved,sodoesthesurfacerelatetothisortotheAdamperiod(JohnAdamsmid18thcenturyonwards) whenthebasementwasbuilt.IfitisthentherubblelayermayhavecomefromthedemolitionoftheTudor eastwing.Pit2showedmuchthesameasPit1butwithawallrunningnorthtosouth.Thismaybethefeature shown on 19th century maps, possibly a shrubbery planted to screen the stables. Pit 3 was filled before recording.June1992sawthemonitoringofaservicetrenchbetweenthestableandthehouse.Itcutthrough thebaseofawatertoweridentifiedonall19thcenturymapsupto1865.Aculvertwasfoundpresumably 18thcentury,forcollectingwater.Twomoreparallelwallswerefoundthatprobablyrelatetothewallsfound intreeͲpit2.TheservicetrenchinSeptember1992ranfromthenorthwesttoweralongthewallofthehouse tofeedintoanexistingdrain.Attheeastenditcutaculvertsuggestedtobe19thcenturybythecolourof brickused.Againthewalls oftheshrubberyseemtobeapparenthere.July1992sawthemonitoringofthe lower steps of the eastern side. This showed a core of Tudor bricks although it seemed unlikely that it representsthisperiodduetothemissingbricksandmortar.TheBlueDamaskRoomwasobservedeinJun  1992andtheremovalofthepanellingshowedtheroomtobeof18thcenturydate.Additionallythewindows wererecordedindetail.

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NTSMRNo. GLHERRef. RecordType Name Description n/a ELO3946 Event Osterley Allotments, London Transport ArchaeologicalIntervention/Excavation/TrialTrench Allotments

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APPENDIXB BIBLIOGRAPHYANDLISTOFSOURCESCONSULTED  Allen,M,Blick,N,Bindle,T,Evans,T,Fulford,M,Hobrook,N,Lodwick,L,Richards,J,D,Smith,A, 2015(Updated2018,TheRuralSettlementofRomanBritain:Anonlineresource,retrievedfrom https://archaeologydataservice.ac.uk/archives/view/romangl/[viewed25Ͳ9Ͳ2019]

Authorunknown,1980,BlueMixtureDamaskBedChamber(NorthͲwestcorner,aboveGallery, Osterley)singlepageoftypednotesc.1980

Brockman,A,2011,SummaryreportregardingexcavationsatthesiteofHomeGuardSchool NumberOne,OsterleyPark

Buffin,M,n.d.,HistoricaldevelopmentofthePleasureGrounds(OsterleyPark)

Bush,A,2012,OsterleyParkBreakfastRoomWallPapers

CharteredInstituteforArchaeologists(CIfA)2017.StandardandGuidanceforhistoricenvironment deskͲbasedassessment.

ColvinandMoggeridge,2005,OsterleyPark,HistoricParkRestorationPlan,April2005

Finlay,J2013,Osterleybreakfastroomnotes,January2013

GardensTrust,2016,ThePlanningSysteminEnglandandtheProtectionofHistoricParksand Gardens

Hewlings,R,1993,Osterley’notes,May1993,and‘Observations’,May1993

HistoricEngland2001,OsterleyPark,retrievedfromhttps://historicengland.org.uk/listing/theͲ list/listͲentry/1000287[viewed30Ͳ10Ͳ2019]

Jessop,O1999,ArchaeologicalmonitoringatOsterleyPark,Isleworth,Middlesex’1999,reportno. Osterley1

Jessop,O199,ArchaeologicalmonitoringatOsterleyPark,Isleworth,Middlesex’1999,reportno. Osterley3

Lake,J,1983TheStablesatOsterley

Marshall,G2001,Reportdescribinganarchaeologicalwatchingbriefovertrench18

Marshall,G2006,TheNationalTrustreportdescribingwallfootingsfoundduringtrenchingopposite thetoiletblockatOsterleyPark

Marshall,G,2017,TheNationalTrust,observationsonthe brickworkofthewestfrontstepsafter renderremoval,OsterleyPark

©OxfordArchaeologyLtd101  13May2020    OsterleyPark,Hounslow1

Marshall,G,2018Reportdescribingobservationsonwallsurfacesexposedinthebasementof OsterleyPark

Mills,A.D.,2011,ADictionaryofBritishPlaceNames,OxfordUniversityPress

MinistryofHousing,CommunitiesandLocalGovernment,2019.PlanningPracticeGuidance– HistoricEnvironment.

Modha,AandPatel,N1998,OsterleyPark,Middlesex,preliminaryreportonGeophysicalsurvey

Moir,J2003Surveyofthefarmbuildings,ParkFarm,Osterley2003,FinialAssociates

MOLAS1993,OsterleyAllotments,GreshamRoad,Isleworth,Hounslow,AnArchaeological Evaluation

MuseumofLondon2002,AresearchframeworkforLondonarchaeology2002,MuseumofLondon

NationalTrustn.d.TheNationalTrustArchaeologicalSurvey,Mapofhistoricbuildings,sitesand monuments,unpublished

NPPF,2019.NationalPlanningPolicyFramework,(MinistryofHousing,CommunitiesandLocal Government). OxfordArchaeologicalUnit1991,OsterleyParkHouseStables,anarchitecturalappraisalforthe NationalTrust

OxfordArchaeologicalUnit,1994OsterleyPark,recordingofthestables(eastwing)priorto conversion

OxfordArchaeologicalUnit,n.d.Notesonwatchingbriefsduringconstructionworktothestable blocks,OsterleyPark,JanuaryͲMarch

PaulDruryPartnership2009,ConservationPlan,TheStables,OsterleyPark,Middlesex,October 2009

PaulDruryPartnership2010,OsterleyPark,TheKitchenintheLateEighteenthCentury,August2010

PaulDruryPartnership2010,TheAdamSchemesforOsterley,March2010

Porten,L,2019,OsterleyParkandHouse,ASouvenirGuide,ParklanePress

PowellͲSmith,A.2019,OpenDomesday,retrievedfrom https://opendomesday.org/place/TQ1675/isleworth/[viewed26Ͳ9Ͳ2019]Reed,C,2012Osterley ParkPaintRemovalTrialsPaintRemovalTrialsontheBreakfastRoomCeiling

RenowͲClarke,C,1996,TheNationalTrustOsterleyPark,1996OuterParkAcquisitions,Surveyand RestorationPlan

Richardson,J,1986,TheLocalHistorian’sEncyclopaedia,HistoricalPublicationsLtd

Tait,A.I1980,TheNationalTrustGardensSurveyOsterleyPark

©OxfordArchaeologyLtd 102 13May2020    OsterleyPark,Hounslow1

Thomas,RC,2003,PrisonerofWarcamps(1939Ͳ1948)TwentiethCenturyMilitaryRecording Project,EnglishHeritage.

VCH1962,AHistoryoftheCountyofMiddlesex,Volume3,Shepperton,Stains,Stanwell,Sunbury, Teddington,HestonandIsleworth,Twickenham,Cowley,Cranford,WestDrayton,Greenford, HanwellandHarlington,VictoriaCountyHistory,London

Wainwright,A,1992,NotesandsketchesonbrickdrainsfoundinthePleasureGroundsatOsterley Park

Wainwright,A,1992,NotesonthewestwingofOsterleystableblock

Wainwright,A,1992,NotesonArchaeologicalworkatEastStableFlatOsterley

Wainwright,A,1993,NotesonthestableblockatOsterley

Wainwright,A,1993,NotesonwatchingbriefsatOsterley1991Ͳ1992

   

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MANCHESTER

BIRMINGHAM

CAMBRIDGE

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Osterley LaneMiddle Lake

Pond Field Shooting Home Farm Field Field

North East Meadow 2019

Orchard Field, Forty Field Holly Field and Yard Paddock

The Long Garden Lake Meadow The Great Meadow Triangular Clump

Indian Clump

Main Drive Main Allotment Field Scratage Park Hospital Field

1:11,000 Site boundary 0500m X:\l\London_ Hounslow_ Osterley_ Park\006 Geomatics\03 GIS Projects\Fig_1_Location.mxd*daniel.bray*22/11/ GIS Geomatics\03 Park\006 Osterley_ Hounslow_ X:\l\London_ Figure 1: Site location X:\l\London_ Hounslow_ Osterley_ Park\006 Geomatics\03 GIS Projects\Fig_2_Designated Heritage Assets.mxd*daniel.bray*22/11/2019 178000 179000 177000 Contains Ordnance Survey data Crown copyright © and database right [2019] England GIS Data can beobtained from http://www.HistoricEngland.org.uk. in this material was obtained on13/09/2019. The most publicly available upto date HistoricOrdnance Survey Licence number 100024900. The Historic England GIS Data contained © Historic England 2019. Crown Copyright © anddatabase right 2019. All rights reserved. * # * #

Osterley Park Conservation Park Osterley Area park and garden registered II* Grade building listed II Grade building listed I Grade boundarySite 514000 * # 5 * # 6 * # 7 * # 1 * # 8 * # 2 12 * # * # 4 3

Figure 2: Designated heritage assets 05 515000 1:10,000 @ A4 10 * # * # 0 9 0

m

N N X:\l\London_ Hounslow_ Osterley_ Park\006 Geomatics\03 GIS Projects\Fig_3_Greater Londo_ Eventdata.mxd*charlotte.malone*02/01/2020 Contains Ordnance Survey data Crown copyright © and database right [2020] ENA7138 178000 179000 ENA9172 Investigation Point Investigation Archaeological Trust National polygon investigation GLHER Archaeological point investigation GLHER Archaeological boundarySite ENA4043 ENA2308 ENA2425 ENA9174 ENA8786 ELO1228 ENA8052 ENA9520 ENA9173 ENA8781 ENA8326 ENA8040 ENA9239 ENA9228

ENA2315

ENA2310 ENA8041 ENA2307 514000 ENA2314 ENA2306 ELO1223 ENA9475 ENA6942 ELO1381 ENA7254 ENA8704 ENA9515 ENA2316 ENA5996 ENA2313 ENA2363 ENA3923 ENA2309 ELO1225 ENA2427 ENA8318 ENA8807 ENA5574 ENA3925 ENA3924 ENA6422 ENA8640 ENA9104 0 ENA7138 ENA2426 ENA9113 ENA6336 ENA9477 ENA3922 Figure 3: Previous archaeological investigations within the site ENA9105 ELO3946 ENA8022 ENA4761 ENA2436 ENA8773 ENA9172 Osterley Park House Inset Map Inset House Park Osterley ELO1226 05 1:1750 ENA9106 ELO1227 ENA2293 ENA5576 ENA5575 @A3 1:10,000 ENA2312 @ A3 0 m

ENA6225 515000 ENA9476

,0 m 1,000 N C:\Users\charlotte.malone\Documents\London_Hownslow_Osterley Park\006 Geomatics\03 GIS Projects\Fig_4_Greater Londo_ HER data.mxd*charlotte.malone*05/05/2020 178000 179000 180000 176000 177000 138 129 137 Contains Ordnance Survey data copyright © Crown and database right [ 149 GLHER data GLHER 134 150 136 Post-medieval Medieval- Medieval Prehistoric boundarySite 147 135 144 124 133 148 119 123 154 Medieval Unknown Modern WWII Post-medieval 112

132 514000 113 5 Figure 4: Greater London Historic Environment Record (GLHER) Record data Environment Historic London Greater 4: Figure 111 7 1 71 2019] 72 72 Osterley ParkOsterley APA APA Heston area Study Modern Post-medieval 82 8 115 127 73 109 20 14 46 74 100 110 13 156 117 3 4 121 107 84 118 155 12 111 18 108

158

159 09 515000 116 17 143 160 159 9 1:17,000 122 130 146 11 153 @ A4 145 114 142 120 139 157 140 151 128 126 5

0 516000 m 141

125 N X:\l\London_ Hounslow_ Osterley_ Park\006 Geomatics\03 GIS Projects\Fig_5_National Trust HER data.mxd*daniel.bray*22/11/2019 Contains Ordnance Survey data © Crown copyright and database right [2019] right database and copyright Crown © data Survey Ordnance Contains 178000 !( !( !( !( !( !( !( !( Unknown Modern WWII Post-medieval-Modern Post-medieval Medieval-Post-medieval Roman Prehistoric Site boundary !(

175 514000 !( 94 162 !( !( 5 183 !( 96 !( !( 75 !( 176 76 !( 95 27 28 !( !( !( 29 165 !( 30 161 !( !( 32 !( 1 97 78 77 !( !( !( 164 31 !( !( !( 169 98 !( !( !( !( 34 !( 167 33 !( 99 100 !( 35 182 !( 22 !( 37 !( !( 8 36 !( !( !( 101 !( 14 23 !( !( 2 38 170 !( !( 44 40 42 !( 39 45 4 3 41 !( 5 !( !( !( !( !( 43 !( !( !( !( 13 15 !( 83 !( 48 47 49 !( !( 24 !( 52 50 51 !( !( !( !( !( 163 !( !( !( 181 79 171 80 84 12 53 !( !( 21 !( Figure 5: National Trust Historic Environment Record (NTHER)Recorddata Environment Historic Trust National 5: Figure 25 173 !( !( !( !( 16 81 !( 85 54 !( !( !( 55 69 26 56 !( !( 103 !( 57 !( 168 !( !( 59 !( !( 60 179 61 !( 62 !( 104 63

64

172 0 515000 !( !( !( !( 65 87 66 !( !( !( 86 !( !( !( 88 180 17 !( !( 67 !( !( 89 105 90 1:8,000 178 68 !( !( 91 !( 177 166 !( !( 174 @ A4 !( 5 !( !( !( !( 70 92 !( 93 500

m N © Environment Agency copyright and/or database right [2019] 514000 515000 N

52 daniel.bray*22/11/2019

178000

56 X:\l\London_ Hounslow_ Osterley_ Park\006 Geomatics\03 GIS Projects\Figure 6 LiDAR Multi Hillshade.mxd* Multi LiDAR 6 GIS Geomatics\03 Projects\Figure Park\006 Osterley_ Hounslow_ X:\l\London_ 051:8,000 @ A4 00m Site boundary

Figure 6: LiDAR multi hillshade visualisation Contains Ordnance Survey data © Crown copyright and database right [2019] 514000 515000 N

52 Fig. 7c

186 98 173 33 184 185 97 78 101 163 167 69 181 187 5 32 23 30 26 103 179 94 77 Fig. 7b 57

28 1

175 168 65 47 99 176 164 178000 Fig.60 7d 39 198 165 37

55 45 162 76 182

102 75 169 200 25 183 8 Site boundary 38 81 Feature identified by OA from LiDAR data 202 201 The National Trust Archaeological Survey 17th to early 18th century feature 170 18th century feature 177 56

X:\l\London_ Hounslow_ Osterley_ Park\006 Geomatics\03 GIS Projects\Fig_7a_Earthwork plot.mxd*charlotte.malone*22/11/2019 19th to 20th century feature 051:8,000 @ A4 00m Feature date unknown

Figure 7a: National Trust Archaeological Survey and LiDAR earthwork interpretation plot Contains Ordnance Survey data © Crown copyright and database right [2019]

N

69

26 41

2

50

53

4

99 79

Site boundary Feature identified by OA from LiDAR data The National Trust Archaeological Survey 178000 17th to early 18th century feature 18th century feature

X:\l\London_ Hounslow_ Osterley_ Park\006 Geomatics\03 GIS Projects\Fig_7b_Earthwork plot.mxd*daniel.bray*22/11/2019 19th to 20th century feature 011:1,500 @ A4 00m Feature date unknown

Figure 7b: National Trust Archaeological Survey and LiDAR earthwork interpretation plot Contains Ordnance Survey data © Crown copyright and database right [2019] 515000 N

90

66 191

189 194 67

91 93 92

193

180 192

187 93

178 189 190

166 179

68 Site boundary 174 Feature identified by OA from LiDAR data 177 68 The National Trust Archaeological Survey 17th to early 18th century feature 18th century feature

X:\l\London_ Hounslow_ Osterley_ Park\006Geomatics\03 GIS Projects\Fig_7c_Earthwork_plot.mxd*daniel.bray*22/11/2019 19th to 20th century feature 011:2,750 @ A4 50m Feature date unknown

Figure 7c: National Trust Archaeological Survey and LiDAR earthwork interpretation plot Contains Ordnance Survey data © Crown copyright and database right [2019] 515000 N

195

64 87

62 177

89

88

55

205

63

199

Site boundary Feature identified by OA from LiDAR data The National Trust Archaeological Survey 17th to early 18th century feature 86 18th century feature

X:\l\London_ Hounslow_ Osterley_ Park\006Geomatics\03 GIS Projects\Fig_7d_Earthwork_plot.mxd*daniel.bray*22/11/2019 19th to 20th century feature 011:1,500 @ A4 00m Feature date unknown

Figure 7d: National Trust Archaeological Survey and LiDAR earthwork interpretation plot m 0 0 @ A4 1:8,000 515000 Figure 8a: Cropmark/ parchmark plot parchmark Cropmark/ 8a: Figure Fig. 8b Fig. 05

514000 Site boundary Site Feature identified during NT LiDAR and Survey Archaeological analysis Linear feature (OA 188) parallelTwo (OA 196) linear features Linear feature (OA 197) Formal garden (OAparchmarks 203) (OA parchmarks POW building Former 204) 171) (OA building of Site

N Feature identfied from drone mounted AP survey AP mounted drone from identfied Feature and satellite imagery 178000

Contains Ordnance Survey data © Crown copyright and database right [2019] right database and © copyright Crown data Survey Ordnance Contains X:\l\London_ Hounslow_ Osterley_ Park\006 Geomatics\03 GIS Projects\Fig_8a_AP_plot.mxd*charlotte.malone*22/11/2019 GIS Geomatics\03 Park\006 Osterley_ Hounslow_ X:\l\London_ m 0 0 @ A4 1:1,500 Figure 8b: Cropmark/ parchmark plot parchmark Cropmark/ 8b: Figure 01

515000 Site boundary Site Feature identified duringArchaeological NT LiDAR and analysis Survey Former POW building (OA 204) parchmarks

N

Contains Ordnance Survey data © Crown copyright and database right [2019] right database and © copyright Crown data Survey Ordnance Contains X:\l\London_ Hounslow_ Osterley_ Park\006 Geomatics\03 GIS Projects\Fig_8b_AP_plot.mxd*daniel.bray*22/11/2019 GIS Geomatics\03 Park\006 Osterley_ Hounslow_ X:\l\London_ X:\l\London_ Hounslow_ Osterley_ Park\006 Geomatics\03 GIS Projects\Fig_9_Historic mapping_plan1635.mxd*daniel.bray*22/11/2019 Site boundary Figure 9: Moses Glover's Plan of Isleworth 1635

Not to scale N X:\l\London_ Hounslow_ Osterley_ Park\006 Geomatics\03 GIS Projects\Fig_10_Historic mapping_rocque1741-45.mxd*daniel.bray*22/11/2019 Site boundary Figure 10: Rocque's Survey of London1741-45 of Survey Rocque's 10: Figure

Not to scale N X:\l\London_ Hounslow_ Osterley_ Park\006 Geomatics\03 GIS Projects\Fig_11_Historic mapping_OSD1807.mxd*daniel.bray*22/11/2019 Site boundary Figure 11: Ordnance Survey Drawing 1807 Drawing Survey Ordnance 11: Figure

Not to scale N N m 0 0 @ A4 1:8,000 Figure 12: Heston Enclosure 1818 Map

515000 05

514000 Site boundary Site

178000

/2019 mapping_enclosure1818.mxd*daniel.bray*22/11 Projects\Fig_12_Historic GIS Geomatics\03 Park\006 Osterley_ Hounslow_ X:\l\London_ N m 0 0 @ A4 1:8,000

515000 05 Figure 13: Greenwood's Map of Middlesex 1818-19 Middlesex of Map Greenwood's 13: Figure

514000 Site boundary Site

178000

11/2019 mapping_greenwood1818-9.mxd*daniel.bray*22/ Projects\Fig_13_Historic GIS Geomatics\03 Park\006 Osterley_ Hounslow_ X:\l\London_ N m 0 0 @ A4 1:8,000

515000 05 Figure 14: Extract from Plan of Osterley Park accompanying offer of a lease 1832 lease a of offer accompanying Park Osterley of Plan from Extract 14: Figure

514000 Site boundary Site

178000 X:\l\London_ Hounslow_ Osterley_ Park\006 Geomatics\03 GIS Projects\Fig_14_Historic mapping_plan1832.mxd*daniel.bray*22/11/2019 Projects\Fig_14_Historic GIS Geomatics\03 Park\006 Osterley_ Hounslow_ X:\l\London_ N m 0 0 @ A4 1:8,000

515000 05 Figure 15: First Edition Ordnance Survey (County Series 25in) 1865 25in) Series (County Survey Ordnance Edition First 15: Figure

514000 Site boundary Site

178000 X:\l\London_ Hounslow_ Osterley_ Park\006 Geomatics\03 GIS Projects\Fig_15_Historic mapping_OS1865.mxd*daniel.bray*22/11/2019 Projects\Fig_15_Historic GIS Geomatics\03 Park\006 Osterley_ Hounslow_ X:\l\London_ N m 0 0 @ A4 Figure 16: Estate map c.1875 map Estate 16: Figure 1:8,000

515000 05

514000 Site boundary Site

178000

9 mapping_map1875v1.mxd*daniel.bray*22/11/201 Projects\Fig_16_Historic GIS Geomatics\03 Park\006 Osterley_ Hounslow_ X:\l\London_ N m 0 0 @ A4 1:8,000

515000 05 Figure 17: Second Edition Ordnance Series 25in) 1894-6 Survey (County

514000 Site boundary Site

178000

/2019 mapping_OS1894-6.mxd*charlotte.malone*25/11 Projects\Fig_17_Historic GIS Geomatics\03 Park\006 Osterley_ Hounslow_ X:\l\London_ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 Plate 1:Earthwork remains ofa17thcentury garden enclosure (OA 25),view lookingnorth Plate 2: ϭϲƚŚĐĞŶƚƵƌLJĮĞůĚďŽƵŶĚĂƌLJďĂŶŬ;KϯϴͿ͕ǀŝĞǁůŽŽŬŝŶŐƐŽƵƚŚͲĞ ĂƐƚ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 WůĂƚĞϯ͗ĂŶŬ;KϴϯͿŵĂƌŬŝŶŐƚŚĞďŽƵŶĚĂƌLJďĞƚǁĞĞŶ/ŶĚŝĂŶůƵŵƉ Plate 4: ŽŶĐƌĞƚĞƉŽƐƚĂŶĚŵĞƚĂůǁŽƌŬĨƌŽŵƚŚĞ^ĞĐŽŶĚtŽƌůĚtĂƌŚŽƐƉŝƚĂů ĂŶĚ,ŽƐƉŝƚĂů&ŝĞůĚ͕ǀŝĞǁůŽŽŬͲ ŝŶŐƐŽƵƚŚͲǁĞƐƚ ĨĞŶĐĞ;KϴϯͿ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 Plate 6:Ditch associated trench withamodernservice (OA 177),view lookingwest Plate 5: ŽŶĐƌĞƚĞƉŽƐƚĨƌŽŵƚŚĞ^ĞĐŽŶĚtŽƌůĚtĂƌŚŽƐƉŝƚĂůĨĞŶĐĞ;KϴϯͿ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 Plate 7: WůĂƚĞϴ͗ϭϲƚŚĐĞŶƚƵƌLJĮĞůĚďŽƵŶĚĂƌLJ;KϯϴͿĐƌŽƐƐŝŶŐƚŚĞDĂŝŶƌŝǀĞ͕ǀŝĞǁůŽŽŬŝŶŐŶŽƌƚŚ ϭϲƚŚĐĞŶƚƵƌLJĮĞůĚďŽƵŶĚĂƌLJ;KϯϴͿĐƌŽƐƐŝŶŐƚŚĞDĂŝŶƌŝǀĞ͕ǀ ŝĞǁůŽŽŬŝŶŐƐŽƵƚŚ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 Plate 9: Plate 10: ůĂƌŐĞĚŝƚĐŚ;KϱϱͿƉŽƐƐŝďůLJŵĂƌŬŝŶŐƚŚĞŽƌŝŐŝŶĂůĐŽƵƌƐĞŽĨK ůŝŶĞĂƌĚŝƚĐŚ;KϲϮͿĐŽƌƌĞƐƉŽŶĚŝŶŐǁŝƚŚĂĮĞůĚďŽƵŶĚĂƌLJƐŚŽǁŶ ŵĂƉ͕ǀŝĞǁůŽŽŬŝŶŐƐŽƵƚŚͲǁĞƐƚ ƐƚĞƌůĞLJ>ĂŶĞ͕ǀŝĞǁůŽŽŬŝŶŐ ŽŶZŽĐƋƵĞ͛Ɛϭϳϰϭ ƐŽƵƚŚͲǁĞƐƚ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 Plate 12: ŽŶĐƌĞƚĞďĂƐĞŽĨĂďƵŝůĚŝŶŐ;KϴϵͿĂƐƐŽĐŝĂƚĞĚǁŝƚŚƚŚĞWƌŝƐŽŶĞ Plate 11: ǁŝƚŚƚŚĞWƌŝƐŽŶĞƌŽĨtĂƌĐĂŵƉ͕ǀŝĞǁůŽŽŬŝŶŐǁĞƐƚ ƌŝĐŬĨŽŽƟŶŐŽĨĂďƵŝůĚŝŶŐ;KϴϳͿĂƐƐŽĐŝĂƚĞĚ ƌŽĨtĂƌĐĂŵƉ͕ǀŝĞǁ ůŽŽŬŝŶŐŶŽƌƚŚͲǁĞƐƚ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 WůĂƚĞϭϯ͗'ĂƚĞƉŽƐƚƐĂŶĚŐĂƚĞĂƐƐŽĐŝĂƚĞĚǁŝƚŚƚŚĞĨĞŶĐĞ;KϴϲͿ Plate 14: ,ŽůůŽǁ;KϲϬͿŝŶƚŚĞĂƌĞĂŽĨĂϮϬƚŚĐĞŶƚƵƌLJďƵŝůĚŝŶŐ͕ǀŝĞǁůŽŽŬŝŶŐƐŽƵƚŚͲǁĞƐƚ ŽĨƚŚĞWƌŝƐŽŶĞƌŽĨtĂƌĐĂŵƉ͕ ǀŝĞǁůŽŽŬŝŶŐƐŽƵƚŚͲĞĂƐƚ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 Plate 15: ŽŶĐƌĞƚĞƉŽƐƚŝŶƚŚĞďŽƵŶĚĂƌLJĨĞŶĐĞďĞƚǁĞĞŶƚŚĞdƌŝĂŶŐƵůĂƌůƵŵƉĂŶĚ&ŽƌƚLJ&ŝĞůĚ͕ Plate 16: dƌŝĂŶŐůĞůƵŵƉĂŶĚ&ŽƌƚLJ&ŝĞůĚ͕ǀŝĞǁůŽŽŬŝŶŐŶŽƌƚŚͲǁĞƐƚ DĞƚĂůƉŽƐƚŝŶƚŚĞďŽƵŶĚĂƌLJĨĞŶĐĞďĞƚǁĞĞŶƚŚĞ view lookingnorth O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 Plate 17: WůĂƚĞϭϴ͗ZŝŇĞďƵƩ;KϵϬͿŝŶƚŚĞŶŽƌƚŚͲĞĂƐƚĐŽƌŶĞƌŽĨ^ŚŽŽƟŶŐ ŝƚĐŚŵĂƌŬŝŶŐĂƚƌĂĐŬǁĂLJ;KϲϱͿƐŚŽǁŶŽŶZŽĐƋƵĞ͛ƐϭϳϰϭŵĂƉ͕ǀŝ &ŝĞůĚ͕ǀŝĞǁůŽŽŬŝŶŐŶŽƌƚŚͲĞĂƐƚ ĞǁůŽŽŬŝŶŐŶŽƌƚŚͲ west O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 Plate 20: ĂƌƚŚǁŽƌŬĂƐƐŽĐŝĂƚĞĚǁŝƚŚĂŐƌĂǀĞůƚƌĂĐŬǁĂLJ;KϵϮͿ͕ǀŝĞǁůŽŽŬŝ Plate 19: sŝĞǁůŽŽŬŝŶŐƐŽƵƚŚͲĞĂƐƚĂĐƌŽƐƐƚŚĞ^ŚŽŽƟŶŐ&ŝĞůĚ ŶŐŶŽƌƚŚͲĞĂƐƚ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 Plate 21: sŝĞǁůŽŽŬŝŶŐƐŽƵƚŚͲǁĞƐƚĂĐƌŽƐƐƚŚĞƐŝƚĞŽĨĂŶ>ͲƐŚĂƉĞĚĞĂƌƚŚǁŽƌ Plate 22: >ĂǁŶƚŽƚŚĞŶŽƌƚŚͲĞĂƐƚŽĨKƐƚĞƌůĞLJ,ŽƵƐĞ;KϯͿ͕ǀŝĞǁůŽŽŬŝŶŐƐ ǁŝƚŚĂƉŽŶĚƐŚŽǁŶŽŶƚŚĞZŽĐƋƵĞ͛ƐϭϳϰϭŵĂƉ Ŭ;KϭϳϵͿĂƐƐŽĐŝĂƚĞĚ ŽƵƚŚͲǁĞƐƚ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 WůĂƚĞϮϯ͗>ŝŶĞĂƌĨĞĂƚƵƌĞƐ;KϭϴϱͿŽŶƚŚĞŶŽƌƚŚĞƌŶďĂŶŬŽĨƚŚĞ Plate 24: sŝĞǁůŽŽŬŝŶŐǁĞƐƚĂĐƌŽƐƐWŽŶĚ&ŝĞůĚ ƉŽŶĚŝŶWŽŶĚ&ŝĞůĚ͕ǀŝĞǁůŽŽŬŝŶŐ north O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 Plate 25: >ĂƌŐĞĚŝƚĐŚ;KϭϲϮͿĨŽƌŵŝŶŐƚŚĞŶŽƌƚŚĂŶĚǁĞƐƚďŽƵŶĚĂƌLJŽĨƚŚĞ Plate 26: ƌŝĚŐĞ;KϴͿĐƌŽƐƐŝŶŐƚŚĞ'ĂƌĚĞŶ>ĂŬĞ͕ǀŝĞǁůŽŽŬŝŶŐƐŽƵƚŚͲĞĂƐƚ 'ƌĞĂƚDĞĂĚŽǁ͕ǀŝĞǁ ůŽŽŬŝŶŐŶŽƌƚŚͲǁĞƐƚ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 Plate 27: WůĂƚĞϮϴ͗dŚĞdĞŵƉůĞŽĨWĂŶ;KϭͿ͕ǀŝĞǁůŽŽŬŝŶŐǁĞƐƚ dŚĞ'ĂƌĚĞŶ,ŽƵƐĞ;KϮͿ͕ǀŝĞǁůŽŽŬŝŶŐŶŽƌƚŚ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 Plate 29: WůĂƚĞϯϬ͗dŚĞŝĐĞŚŽƵƐĞŵŽƵŶĚ;KϰϱͿ͕ǀŝĞǁůŽŽŬŝŶŐŶŽƌƚŚͲĞĂƐƚ dŚĞtĂůůĞĚ<ŝƚĐŚĞŶ'ĂƌĚĞŶ;KϮϵͿ͕ǀŝĞǁůŽŽŬŝŶŐŶŽƌƚŚͲĞĂƐƚ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 WůĂƚĞϯϭ͗dƌĞĞĞŶĐůŽƐƵƌĞ;KϭϲϰͿƐŚŽǁŶŽŶƚŚĞϭϴϯϮŵĂƉŽĨKƐƚĞ WůĂƚĞϯϮ͗ŝƚĐŚ;KϯϵͿĂƐƐŽĐŝĂƚĞĚǁŝƚŚƚŚĞϭϴƚŚĐĞŶƚƵƌLJĨŽƌŵĂů ƌůĞLJ͕ǀŝĞǁůŽŽŬŝŶŐƐŽƵƚŚͲǁĞƐƚ ŐĂƌĚĞŶ͕ǀŝĞǁůŽŽŬŝŶŐǁĞƐƚ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 WůĂƚĞϯϯ͗^ĞĐŽŶĚtŽƌůĚtĂƌďŽŵďĐƌĂƚĞƌ;KϭϳϲͿ͕ǀŝĞǁůŽŽŬŝŶŐǁ WůĂƚĞϯϰ͗DŽĚĞƌŶďŽƵŶĚĂƌLJĚŝƚĐŚ;KϳϲͿ͕ǀŝĞǁůŽŽŬŝŶŐŶŽƌƚŚͲǁĞƐ ĞƐƚ ƚ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 WůĂƚĞϯϱ͗'ĂƌĚĞŶƐƉŽŝůŚĞĂƉ;KϵϵͿ͕ǀŝĞǁůŽŽŬŝŶŐƐŽƵƚŚͲĞĂƐƚ WůĂƚĞϯϲ͗KƐƚĞƌůĞLJ,ŽƵƐĞ;KϯͿ͕ǀŝĞǁůŽŽŬŝŶŐŶŽƌƚŚͲǁĞƐƚ O:\O_codes\OSTPKCO\*Osterley Park, Hounslow*CAR*25.11.19 WůĂƚĞϯϴ͗'ŽŽŐůĞĂƌƚŚĞƌŝĂůWŚŽƚŽŐƌĂƉŚ;ŝŵĂŐĞƌLJĚĂƚĞϭͬϭͬϭϵϰϱ WůĂƚĞϯϳ͗dŚĞ^ƚĂďůĞƐ;KϰͿ͕ǀŝĞǁůŽŽŬŝŶŐƐŽƵƚŚͲǁĞƐƚ Ϳ