Aeronautical Assessment Report

re Cooldown Commons site at Citywest Road, Dublin 24 in South County Dublin

for Strategic Housing Development Planning Application

for Cairn Homes Properties Ltd

21 st May 2021

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O ’ D W Y E R & J O N E S D E S I G N P A R T N E R S H I P A V I A T I O N P L A N N I N G & A R C H I T E C T U R E C O N S U L T A N T S 2 8 L E E S O N P A R K • D U B L I N 6 • t e l .: 3 5 3 - 1- 4 9 8 1 8 9 3 [ f a x: 3 5 3 - 1- 4 9 6 4 4 1 0 ] ______www.AviationPlanning.ie e.: [email protected] / [email protected] Aviation Report (SHD Planning Application) i re SHD at Cooldown Commons, Citywest, Dublin 24

CONTENTS page

Executive Summary ...... 1

Section 1 Introduction: Scope of Report, Description of Site, & Background Items . 2

Section 2 Obstacle Limitation Surfaces in Relation to the Site . . . . 9

Section 3 Relevant S.D.C.C. Development Plan Paragraphs . . . . 10

Section 4 Layout, Elevations OD, & Coordinates of the Proposed Development . 12

Section 5 The Site in Relation to Casement Aerodrome’s Inner Horizontal Surface . 13

Section 6 Assessment in Relation to Casement’s Inner Horizontal Surface . . 14

Section 7 Applicability of this Sector of the Inner Horizontal Surface (per ICAO) . 15

Section 8 Assessment (with maps & diagrams) of ‘Shielding’ by Existing Objects . 19

Section 9 Assessment of Other I.H.S. Factors – Choice of Datum . . . 25

Section 10 Conclusion with regard to Casement’s Inner Horizontal Surface . . 27

Section 11 Other Aviation Considerations ...... 28

Section 12 SUMMARY ...... 30

Appendix ‘A’ Credentials re Projects in relation to Casement Aerodrome . . 31

Appendix ‘B’ Correspondence; ‘Notam’; and Defence Act extract . . . 33 Aviation Report (SHD Planning Application) 1 re SHD at Cooldown Commons, Citywest, Dublin 24

Executive Summary May 2021

A. Aviation ‘Obstacle Limitation Surfaces’ in General

The site at Cooldown Commons, Citywest, lies well clear of all Approach Surfaces, Take-Off Climb Surfaces, and Transitional Surfaces at Casement Aerodrome, which are the more important Obstacle Limitation Surfaces [as defined by the International Civil Aviation Organization (ICAO) and by the European Aviation Safety Agency (EASA)]. The site is also clear of all Surfaces for Weston and Dublin Airports.

B. Casement Aerodrome’s ‘Inner Horizontal Surface’

Parts of the proposed development project by varying amounts above Casement’s Inner Horizontal Surface, with the highest element being the roof parapet of Block ‘D4’, which – as now revised and reduced – extends to 155.7m OD (i.e. 24.1m above Casement’s Inner Horizontal Surface level).

However, this projection is not aeronautically significant or (in ICAO’s wording) likely to “affect the safety or the regularity of operation of aeroplanes”, for the reasons explained in Sections 6, 7, 8, 9, & 10 of this report [on pages 14 to 27], and in particular for the reasons – (a) that (in accordance with ICAO guidance) “the protection afforded by the inner horizontal surface need not extend into” this sector, because circling of aircraft is prohibited in this sector due to the extensive rising ground; and (b) because the proposed development is ‘Shielded’ by a nearby existing permanent object – i.e. Saggart Church – which extends to greater elevation OD and is located 0.6km closer to the centreline of Casement Aerodrome’s subsidiary runway 04/22.

C. Overall

We consider that the proposed residential development at this Cooldown Commons site in Saggart-Citywest complies with ICAO guidance and with all international aviation and aeronautical requirements affecting the location.

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O ’ D W Y E R & J O N E S D E S I G N P A R T N E R S H I P A V I A T I O N P L A N N I N G & A R C H I T E C T U R E C O N S U L T A N T S 2 8 L E E S O N P A R K • D U B L I N 6 • t e l .: 3 5 3 - 1- 4 9 8 1 8 9 3 [ f a x: 3 5 3 - 1- 4 9 6 4 4 1 0 ] ______www.AviationPlanning.ie e.: [email protected] / [email protected]

J. D. O’Dwyer B.Arch MBA RIBA S. Jones MA Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 2

1. INTRODUCTION

1.1 Scope of Report & Site Location

This Report assesses the aviation impact of a proposed Strategic Housing Development on a site of 3.4 hectares approx. in South County Dublin, located beside Fortunestown Luas Station in the Saggart-Citywest area of Dublin 24.

Luas

SITE

Fortunestown Luas Station

1.2 Matters of Aeronautical Significance in relation to the Site

(i) The site lies at a lateral distance of 1.97 km-2.21 km approx. from the centre-line of Casement Aerodrome’s subsidiary Runway 04/22. This places the site within the area affected by Casement’s ‘Inner Horizontal Surface’.

(ii) The ‘Inner Horizontal Surface’ (as defined by ICAO [The International Civil Aviation Organization]) is an imaginary horizontal plane extending to 4km from the centrelines of both of the Aerodrome’s runways, and located at an elevation of 45m above the level of the Aerodrome’s chosen datum elevation. This Surface is illustrated in a drawing on the following page >.

(iii) The datum elevation of Casement Aerodrome is at 86.6m OD, so that its ‘Inner Horizontal Surface’ lies at 131.6m OD [86.6m +45m]. The development site’s ground levels vary from 110.7m OD to 117.3m OD approx., so that it lies at up to 30.7m above Casement’s datum, and (at its highest) at just 14m below Casement’s Inner Horizontal Surface.

(iv) No part of the site, however, lies under any of the more significant of Casement Aerodrome’s ‘Obstacle Limitation Surfaces’ – ‘Approach Surface’, ‘Take-Off Climb Surface’, or ‘Transitional Surface’. And the site is outside the area covered by any of the ‘Obstacle Limitation Surfaces’ for Weston Airport or Dublin Airport. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 3

1.3 Extent of Casement Aerodrome’s Inner Horizontal Surface & Conical Surface

The full extent of Casement’s Inner Horizontal Surface is shown below, bounded to the outside by the aerodrome’s Conical Surface, and to the inside by Transitional Surfaces and the parts of Approach Surfaces which extend below it. The diagram also shows the extensive areas of rising ground which project above these Surfaces. Casement Aerodrome’s Inner Horizontal Surface Site location Casement Aerodrome’s Conical Surface Transitional Surfaces

Casement Aerodrome

Runway 10/28

RunwaySaggart 04/22 Citywest

Dublin Mountains

O’Dwyer & Jones Design Partnership Inner Horizontal Surface aviation planning consultants © 5-2021 goes underground and has no effect here Conical Surface goes underground and has no effect here Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 4

1.4 The Site in Relation to the Current S.D.C.C. Development Plan:

In the current South Dublin County Council Development Plan 2016-2022, this site at Cooldown Commons, Fortunestown, is zoned ‘Objective RES-N: To provide for new residential communities in accordance with approved area plans.’

The Site is shown, outlined in red, in the extract below from SDCC Plan Map 8.

1.5 Some Recent Aviation Changes to Note (at variance with SDCC Development Plan 2016-2022 data):

(i) In December 2017, the standards relating to eight international and regional airports in Ireland (including Dublin, but not Casement) came under E.A.S.A. [European Aviation Safety Agency] standards, rather than I.C.A.O. [International Civil Aviation Organization] standards as previously. Weston Airport is temporarily exempted, and remains (with Casement) under ICAO standards. (ii) In November 2018, I.C.A.O. issued revised ‘Annex 14’ Standards bringing these in line with the new E.A.S.A. Aerodromes Specifications, with several changes to airport design specifications (including narrower Approach Surfaces). (iii) In February 2019, Casement’s runway designations were changed: its main runway (formerly 11/29, as in the SDCC Development Plan) was redesignated as 10/28, and its subsidiary runway (formerly 05/23) was redesignated as 04/22. This arose from a shift in magnetic variation which affected Casement. In this report we use the new 2019 designations, but they refer to the same runways as are in the SDCC Plan. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 5

1.6 Recent Background

An SHD application on this same site [reference no. ABP-308985-20] has previously been submitted by Cairn Homes Properties Ltd. Following receipt of notification of a Department of Defence objection (dated 1st February ’21) to that application, Cairn Homes engaged this firm to provide aviation planning advice to address the comments and objection of the Department of Defence. [Details of this firm’s previous work re Casement Aerodrome is included at Appendix ‘A’]

1.7 Engagement with Department of Defence on their Issue of Concern

The Department of Defence’s original objection (in paragraphs ‘A’, ‘B’, & ‘C’ of its letter of 1st February 2021) relates to Casement Aerodrome’s Inner Horizontal Surface in the Saggart-Citywest area where the development is located.

(i) A preliminary meeting, requested by Cairn Homes, was held on 10th March

50 2021 with Department of Defence and Air Corps 50personnel, for the purpose of

50

addressing the Department’s objection of 1st February ’21, and for50 discussion of any necessary redesign. In advance

of this meeting, the Department 2. Saggart-Citywest (as in SDCC diagram) Superimposed onto Contour Map of of Defence and Air Corps were South Dublin & adjoining Counties 50 (along with Casement’s Runways 04/22 & 10/28) 70 INNER ZONE LIMIT

11 Casement 100

80 Aerodrome 23 90 110

provided with a document [>] of RUNWAY 182 120 9x45m

SECURITY ZONE 29

90 100 80 110 05 RUNWAY 1483x45m 120 110 180 Citywest drawings, calculations, and text, 130 140 150 <<< Site 175 177 160 157 140 130 120 120

130 130 which analysed existing obstacles 140 140 110 140 150 150 150 120 160 130 217 183 140 150 190

150 & terrain in the Saggart-Citywest 160 150

280

320 300 300 336 290 340 360 190 252 346 270 300

310 280 396 350 321 “Moderate Sustainable Growth Town” 250

390

200 210 220 230

250 O’Dwyer & JOnes Design PartnershiP 240 261

aviatiOn Planning cOnsultants © 3-2021 290 area, and which indicated how a 250

450 350 solution might safely be achieved. 350 550 648

(ii) In order to effectively address the Department of Defence’s concerns, Cairn Homes withdrew the original SHD submission, and instructed that the project be redesigned to take account of the aviation issues raised. Specifically, on aviation planning advice, the original tallest block ‘D4’ has been reduced by two storeys to bring it to a lower elevation than Saggart Church – a nearby existing permanent ‘obstacle’ which extends to 24.55 metres above the level of Casement Aerodrome’s Inner Horizontal Surface. [This item is explained in detail in Section 8 of this report.]

(iii) A draft ‘Advance Copy’ of this Aviation Report – in which the revised (i.e. lowered) development is assessed – was sent to the Department of Defence and Air Corps, and to the Irish Aviation Authority, on 19th April 2021.

(iv) A meeting with the Department of Defence and Air Corps was requested (through this firm) by Cairn Homes on 29th April 2021, for discussion of the draft ‘Advance Copy’ of this aviation report and for clarification as to any continuing Air Corps concerns, prior to the re-submission of this SHD. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 6

1.8 Requests by Cairn Homes for a meeting with Department of Defence & Air Corps

With no reply received to the request (of 29th April) for a meeting, Cairn Homes held back the re-submission, and two weeks later on 14th May 2021 wrote again to the Department of Defence, urgently requesting a meeting to ascertain any specific concerns of the Air Corps to be taken into account prior to re-submission. [Copies of the 3 requests for a meeting are included in Appendix ‘B’ on pages 34-35]

The Agenda prepared for discussion at this requested meeting was as follows:

(i) The profound effect of the Dublin Mountains on the “obstacle limitation surfaces” at Casement Aerodrome. This issue was not foreseen when the aerodrome was established in 1917 in a location beside the mountains suited to the wind requirements of aircraft of that time. The concept of an “Inner Horizontal Surface” was established by ICAO much later, in 1951, to protect the visual circling of aircraft, but at Casement the mountains rise above this surface, and visual circling is neither possible nor permitted by the IAA or the Air Corps in the Saggart-Citywest area.

(ii) The recognition by ICAO of the “shielding” effects from pre-existing natural or built objects of relevant height. For development in Saggart-Citywest, this is a fundamental concept: half of the area of the Inner Horizontal Surface in this sector – from Runway 04 Approach (over Rathcoole) to Runway 28 Approach (over Tallaght) – is breached by existing buildings, pylons, trees, road lighting masts, road surfaces (including Castle Rd in centre of Saggart, parts of Citywest Rd & the N81 Blessington Rd & the N7 Naas Road, and the vehicles on those roads), and a very extensive area of the land itself (projecting by up to two hundred metres above Casement’s Inner Horizontal Surface. [See drawings on pages 3, 15, 20]

(iii) That it is agreed that all potential obstacles to aviation should be assessed, but this has not happened in the case of many of the obstacles within the Rathcoole to Tallaght area south of Casement’s Runway 10/28. These include significant obstacles to which no objection has been raised, but which we believe are a hazard to aviation safety – such as the recent 27.5m-tall lighting masts in the centre of the Approach to Runway 04 (at the Naas Road Rathcoole interchange) which extend above the Approach to 04, above the Take-off from 22, and above Casement’s Inner Horizontal Surface. [Further details provided at 1.9 below] The Approach and Take-off Surfaces are immensely more significant for aviation safety than the “Inner Horizontal Surface”. Neither Saggart Church (extending 24.55m above the I.H.S. but not above any Approach or Take-off Surface) nor Rathcoole Church (4.02m above the I.H.S., and beside the Approach to Runway 04) have ever been treated as obstacles or a safety hazard. Since 1917, Saggart Church, at 156m AMSL/OD – unmarked, unlit, and unidentified on aviation charts – has constituted the de facto ‘obstacle’ height limit for the area in which it is located. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 7

1.8 (iv) Discussion of the Department of Defence’s comment (following receipt of the ‘advance copy’ of this aviation report containing the proposal to reduce the highest building in the development) that: “There appears to be little other change to the heights of the remaining blocks; therefore, at this juncture the original objections from the Department of Defence would appear to still stand.” [See p.36] In respect of aviation constraints, however, what is relevant is the tallest element in any related group of objects, i.e. block ‘D4’, from which two storeys have been removed following the Department’s original objection. And it has to be remembered that all of the lower blocks are no higher than the elevations OD/ AMSL of other permitted apartment blocks in their immediate vicinity in Citywest.

(v) That the requirements of the South Dublin Development Plan 2016-22 [in its Section 11.6.6 on page 230] have been met in respect of aviation analysis: “the applicant should demonstrate that the proposed development is not an obstacle to the Aerodrome airspace” and that “a special aeronautical study indicates they do not constitute a hazard to aeroplanes.” And that the requirements of ICAO [Annex 14, para. 4.2.4] have been met: “after aeronautical study it is determined that the object would not adversely affect the safety or significantly affect the regularity of operations of aeroplanes.”

(vi) That if the Department of Defence might have requirements in excess of those required by ICAO, or by the SDCC Development Plan, then these extra requirements should more appropriately be sought under Section 36 of the Defence Act, 1954. [A relevant extract of the Defence Act is in Appendix ‘B’ p.39]

Cairn Homes was not granted the opportunity to discuss the above agenda with the Department of Defence and the Air Corps, and the Department has made no comment on anything contained in the ‘advance copy’ of this aviation report received by them on 19th April 2021. [The replies from the Department of Defence, of 21st April 2021 and of 20th May 2021, are included at Appendix ‘B’ on pages 36-37]

1.9 Aviation Safety Item

On a general note [regarding the aviation safety item in para. 1.8(iii) above]: the recent 27.5m-tall lighting masts across the Approach to Casement’s Runway 04 (which we consider a matter of genuine concern for aviation safety) are illustrated opposite. We do not know the circumstances in which these were erected, but it appears that no objection was made to them, although for safety reasons we think they merited objection, and even at this stage we consider it desirable that they be subjected to analysis. These extend by 5.9m above the steeper (3.33%) Approach to Casement’s Runway 04, by 10.4m above Casement’s Inner Horizontal Surface, by 20.6m above the Take-off-Climb Surface from Casement’s Runway 22 and by 20.6m above an Approach Surface to Runway 04 at 2%, and by 30.3m above the 1.2% slope above which ICAO requires that objects be identified on ‘Type A’ Aerodrome Charts. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 8

1.10 Previous An Bord Pleanála Oral Hearing on the Same Aviation Issue

On 9th July 2019 this firm presented a detailed illustrated submission at an Oral Hearing called by An Bord Pleanála for the purpose of examining this same aviation issue – a proposed projection above Casement’s Inner Horizontal Surface in the sector south of Runway 10/28.

Following that submission (and a submission by the Department & Air Corps) permission was granted on 25th July 2019 by An Bord Pleanála to Pyrmont Ltd. for the proposed development [ref. ABP-303803-19], including a ‘shielded’ projection above Casement’s Inner Horizontal Surface. [In that instance, the ‘shielding’ was provided by an existing aerial (beside Cookstown Road) which extends to 150.1m OD.]

1.11 Considerations Covered in this Report with regard to the Inner Horizontal Surface in the Saggart-Citywest area

(i) In Section 7 on pages 15-18 (and as highlighted in the drawing on page 3 above) it is demonstrated that ICAO’s stated purpose for any Inner Horizontal Surface – “to protect airspace for visual circling prior to landing” – cannot apply in the Saggart-Citywest area, because of the terrain. The circling of aircraft is prohibited in this sector (by GOC Air Corps and by IAA) due to exceptional terrain constraints, i.e. the Inner Horizontal Surface in this area is penetrated by extensive rising ground, buildings, roads, trees, and pylons etc.

(ii) In Section 8 on pages 19-24, it is demonstrated that – as an added aviation safety precaution – ICAO’s principle of ‘Shielding’ can be applied to the tallest of the proposed buildings, Block ‘D4’, by reducing its height from 161.25m OD to lower than 156.15m OD – i.e. lower than the elevation OD of the highest point of the nearby Saggart Church, an existing permanent ‘obstacle’, which is located closer to Casement’s nearest runway 04/22, and which is not marked or lit, and is not featured in any way on Casement’s aerodrome charts, past or present.

(iii) In paragraph 11.4 on page 29, it is recommended – as a further aviation safety precaution – that aviation lighting be provided on the tallest block ‘D4’; and this could also add to aviation safety in respect of Saggart Church (whose tower extends to the same altitude/elevation-OD, but has never been marked or lit). Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 9

2. Obstacle Limitation Surfaces in Relation to the Site

2.1 The Department of Defence has adopted the I.C.A.O. Obstacle Limitation Surfaces in relation to Casement Aerodrome. Being a military aerodrome, Casement is not bound by these Civil Aviation standards, but the Department of Defence has opted to apply these Standards at Casement (to protect aircraft in flight). These Obstacle Limitation Surfaces – similar to the E.A.S.A. Specifications which now apply at Dublin Airport – are set out by the International Civil Aviation Organization (based in Montreal) as International Standards and Recommended Practices in its Annex 14 – ‘Aerodromes’ document. [It may be noted that revisions to several Annex 14 dimensions were made by ICAO on 8th November 2018 (affecting Approach Surfaces etc.) but none of these revisions affects this particular site beside Fortunestown Luas station].

2.2 As noted above (in paras 1.2-1.3) the one Obstacle Limitation Surface of relevance to this site at Fortunestown is Casement Aerodrome’s Inner Horizontal Surface, located in a horizontal plane at 131.6m OD.

2.3 This Inner Horizontal Surface at Casement (as designated by the Department of Defence) is marked on the current South Dublin County Council Development Plan Index Map (illustrated below), on which the location of the site is also indicated by a red arrow.

Extent of Casement’s ‘Inner The Site Horizontal Surface’ SOUTH DUBLINSOUTH COUNTY DUBLIN COUNCIL COUNTY COUNCILDEVELOPMENT DEVELOPMENT PLAN 2016 PLAN - 2022 2016 - 2022INFRASTRUCTUREINFRASTRUCTURE & ENVIRONMENTAL & ENVIRONMENTAL QUALITY (IE) QUALITY (IE)

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Horizontal Surface. Defence atDefence Casement at Casement Aerodrome. Aerodrome. Department of Defence Security Zone and TheFor eachmain runwayFor Obstacle each length runway Limitation category, length Surfaces category, the ICAO for each thesets ICAO outinstrument different sets out runway differentsafeguarding are safeguardingmapped requirements on the requirements County in the form in theof form of Additionally,Additionally, the Department the Department of Defence of applies Defence two applies further two restricted further restricted areas of its areas own, of a its circular own, a‘Inner circular ‘Inner Developmentthree-dimensional three-dimensionalDep Planartment Mapgeometric of Index. Defence geometric shapes Inner ‘Obstacle shapes Zone Limit. ‘Obstacle Limitation Limitation Surfaces’, Surfaces’, which define which the define airspace the andairspace provide and provide Zone’ of 2kmZone’ radius, of 2km and radius, a ‘Security and a Zone’‘Security more Zone’ closely more aligned closely with aligned the flight with the strips, flight which strips, are thewhich areas are the areas a frameworka framework for limiting for the limiting heights the and/or heights closeness and/or closeness of any objects of any or objects structures or structures on or in the on vicinityor in the of vicinity the of the Casementaround Aerodrome, thearound runways. being the runways. a military aerodrome, does not fall under the control of the Irish Aviation aerodromeIE8aerodrome Objective(with further (with 2: variations further variations depending depending on whether on itswhether runways its haverunways ‘instrument’ have ‘instrument’ status or not).status In or not). In 7.8.1Authority CASEMENT but the ICAO AERODROME Standards and Recommended Practices are applied as policy by the Department of general,To anygeneral, maintain new objectsany the new airspace should objects notaround should penetrate the not aerodrome penetrate the ‘Obstacle thefree ‘Obstacle fromLimitation obstacles Limitation Surfaces’ to facilitate Surfaces’and any aircraft existing and any operations objects existing objectsto DefenceAs at such, Casement inAs the such, instance Aerodrome. in the of instance Casement of Casement the following the followingis mapped is (in mapped addition (in toaddition the Obstacle to the LimitationObstacle Limitation which Surfaces):Casementpenetratebewhich conducted Surfaces):penetrate theAerodrome ‘Obstacle safely, the isincluding ‘Obstacle Limitationin continuous restricting Limitation Surfaces’ aviation development Surfaces’should use and ideally should is in the bethe ideallyonly removed. environs fully be equippedremoved. of the aerodrome. military airbase in the Additionally,State and the serves Department as the mainof Defence centre applies of Air Corps two further operations. restricted areas of its own, a circular ‘Inner For ObstacleThe ForDep airspace ObstacleLimitationartment Dep of Limitation ofCasement purposes,artment Defence ofpurposes, isSecurityCode Defence defined 1, Code Zone CodeSecurity by the2, and 1, Code Code ZoneObstacle 3 2, orand Code CodeLimitations 3 4 or refer Code simplySurfaces, 4 refer to simply theprepared length(s) to theand length(s) ofmapped runway(s) of runway(s) at at Zone’ of Theon 2km aerodromethe andradius, County and hasDevelopment a two ‘Security runways: Zone’Plan map more in closely accordance aligned with with the the ICAO flight Standards strips, andwhich the are Irish the Aviation areas 3.2around (ii) Authoritythe Dep runways.Paragraphsartment ‘GuidanceDep ofartment Defence Material7.8.1 of Inner Defence‘Casement on AerodromeZone Inner Limit. Aerodrome’Zone Annex Limit. 14 Surfaces on pages (2015)’, 136-137 including ofthe the following: Plan, 1. Runwincludingay 11/29: ThePolicy existing Objectives main runway IE8: with east to west orientation As such,a). in (north thePrevent instance of objectsNewcastle of Casement from & penetratingover the Kingswood). following the Obstacle is mapped Limitation (in addition Surfaces to the for Obstacle runway 11/29.Limitation The existing 7.8.1 CASEMENT7.8.1 CASEMENT AERODROME AERODROME Surfaces): main runway (11/29) is considered as an instrument approach Code 4 runway and the relevant 2. Runway 05/23: Existing secondary runway with a south-east to north-west orientation 135 135 CasementObstacleCasement Aerodrome Limitation Aerodrome is in Surfaces continuous is inof continuousthe aviation Irish Aviation use aviation and Authority is use the and only ‘Guidance is fully the onlyequipped Material fully equipped military on Aerodrome airbase military in airbase the in the Department(05 - Over of Defence Rathcoole Security & 23 - Zone Over andCorkagh Park). StateAnnex andState serves 14 Surfaces’ and as servesthe main (2015) as centrethe are main applicable. of Aircentre Corps of Airoperations. Corps operations. Department of Defence Inner Zone Limit. Theb).INFRASTRUCTURE aerodromePreventThe objectsaerodrome has two from AND runways: has penetrating ENVIRONMENTAL two runways: the established QUALITY International (IE) Policy 8Civil Casement Aviation Aerodrome Organisation (ICAO) Annex 14 standards for approach, transitional, inner horizontal and conical Code 3 Obstacle 7.8.1 CASEMENT AERODROME 1.It isRunwLimitation the 1.policyay 11/29:Runw Surfaces of the ayThe 11/29:Council existing for the The to subsidiary main existingsafeguard runway main instrument the with runway current east approach withto and west east future orientation runway to westoperational, (23)orientation in accordance safety and with technical Tables requirements of Casement Aerodrome and to facilitate its ongoing development for military and Casement (northAerodrome1-7 of theof Newcastle(north Irish is in Aviation ofcontinuous Newcastle & over Authority Kingswood). aviation & over ‘Guidance Kingswood).use and Materialis the only on fully Aerodrome equipped Annex military 14 Surfaces’ airbase in(2015). the The ancillarySOUTHextent DUBLIN uses, of the such landsCOUNTY as under an COUNCIL aviation the runway DEVELOPMENT museum, approach within PLAN surface a sustainable 2016 whereby - 2022 development no developmentINFRASTRUCTURE framework. is allowed & ENVIRONMENTAL for QUALITY (IE) State and2. servesRunw ayas 05/23:the main Existing centre secondary of Air Corps runway operations. with a south-east to north-west orientation runway2. 23Runw (Corkaghay 05/23: Park) Existing is shown secondary on the Development runway with Plana south-east maps. i.e to 1,100 north-west metres. orientation The aerodromeIE8(05 Objective - Over has two(05 Rathcoole 1: - runways: Over Rathcoole & 23 - Over & Corkagh23 - Over Park). Corkagh Park). c).To ensureProtect the runway safety 05 of as military a Code air 3 subsidiary traffic, present visual andapproach future, runwayto and fromdue toCasement the land contoursAerodrome in thewith 1. RunwfullINFRASTRUCTUREay arearegard 11/29: andINFRASTRUCTURE for Theprevent the existing safety AND objects ofmain ENVIRONMENTAL persons from AND runway penetrating ENVIRONMENTALon withthe ground east QUALITY the to as relevantwest well QUALITY(IE) orientation as approach,Policy the necessity(IE) 8 Casement Policy transitional, for 8 causingCasement Aerodrome inner the horizontal Aerodromeleast possible (northinconvenience ofand Newcastle conical tolimitation & local over communities. Kingswood). surfaces for a visual approach runway in accordance with Section 3.13 of the It isIrish the policyAviationIt is the of Authoritythepolicy Council of the‘Guidance to Council safeguard Material to safeguard the on current Aerodrome the and current future Annex and operational, 14 future Surfaces’ operational, safety (2015). and The safety technical extent and of technical 2. RunwIE8requirementsay theObjective 05/23: landsrequirements Existing under 2: of Casement the secondary runwayof Casement Aerodrome runwayapproach Aerodrome with and surface ato south-east facilitate wherebyand to facilitateits to no ongoingnorth-west development its development ongoing orientation is alloweddevelopment for formilitary runway for and military 05 and (05 ancillary- Over Rathcoole ancillaryuses, such & uses,23 as - Overan such aviation Corkagh as an museum, aviation Park). museum, within a sustainable within a sustainable development development framework. framework. To maintain(Rathcoole the end) airspace is shown around on the the Development aerodrome free Plan from maps obstacles (i.e 1,100 to facilitatemetres) and aircraft the ICAO operations standards to be conductedwill not prejudice safely, includingthe development restricting of developmentzoned lands in in Rathcoole. the environs of the aerodrome. INFRASTRUCTUREIE8 ObjectiveIE8 Objective 1:AND ENVIRONMENTAL 1: QUALITY (IE) Policy 8 Casement Aerodrome IE8TheTo ensure Objective airspaceTo the ensure of 3:safety Casement the of militarysafety is defined of air military traffic, by the air present traffic,Obstacle and present Limitations future, and to future, andSurfaces, from to andCasementprepared from CasementandAerodrome mapped Aerodrome with with It is the policy of the Council to safeguard the current and future operational, safety and technical Toonfull implementthe regard Countyfull for regard thetheDevelopment safetyprinciples for the of personssafety ofPlan shielding mapof on persons thein inaccordance ground assessing on the as ground wellwithproposed as the as the ICAOwell development necessity asStandards the necessityfor causingin and the the forvicinity the Irishcausing least Aviationof possiblethe least possible requirements of Casement Aerodrome and to facilitate its ongoing development for military and Aerodromes,Authorityinconvenience inconvenience‘Guidance having to local Materialregard communities. to localto on Section Aerodromecommunities. 3.23 of Annex the Irish 14 Surfaces Aviation (2015)’,Authority including ‘Guidance the Material following: on ancillary uses, such as an aviation museum, within a sustainable development framework. Aerodrome Annex 14 Surfaces (2015)’. a). Prevent objects from penetrating the Obstacle Limitation Surfaces for runway 11/29. The existing IE8 ObjectiveIE8 mainObjective 1: runway 4: (11/29) is considered as an instrument approach Code 4 runway and the relevant Obstacle Limitation Surfaces of the Irish Aviation Authority ‘Guidance Material on Aerodrome To ensureTo prohibit the safety and of restrict military development air traffic, present in the environsand future, of Casementto and from Aerodrome Casement in Aerodrome the following with ways: full regardAnnex for the 14 safety Surfaces’ of persons (2015) onare the applicable. ground as well as the necessity for causing the least possible 136 inconveniencea) By prohibiting to local communities. development within the immediately adjacent approach areas to reduce the slight b). riskPrevent to persons objects on from the penetrating ground and the the established increased risk International to occupants Civil of Aviationan aircraft Organisation in the event (ICAO) of theAnnex aircraft 14 standards accidentally for approach, touching transitional,down outside inner the horizontalaerodrome andboundary conical Codewhile taking 3 Obstacle off or approachingLimitation Surfaces to land, for except the subsidiary where development instrument couldapproach not reasonably runway (23) expect in accordance to increase with the Tables number1-7 of the of Irish people Aviation working Authority or congregating ‘Guidance in Material or at the on property Aerodrome (this Annex may include 14 Surfaces’ development (2015). The suchextent as of the the extension lands under of an the existing runway dwelling approach or asurface change whereby of building no development use). In general, is allowed no for developmentrunway 23 (Corkagh shall be Park) permitted is shown within on the the Development Public Safety PlanZones. maps. i.e 1,100 metres. 136 136 b)c). ByProtect applying runway height 05 asrestrictions a Code 3 subsidiaryto development visual inapproach the environs runway of the due Aerodrome. to the land contours in the area and prevent objects from penetrating the relevant approach, transitional, inner horizontal c) By eliminating potential sources of interference with the operation of electronic navigation aids. and conical limitation surfaces for a visual approach runway in accordance with Section 3.13 of the d) ByIrish obviating Aviation possible Authority hazards ‘Guidance to aircraft Material through on Aerodrome the generation Annex 14of Surfaces’smoke, dust (2015). or fumes The extent which of maythe lands reduce under visibility. the runway approach surface whereby no development is allowed for runway 05 (Rathcoole end) is shown on the Development Plan maps (i.e 1,100 metres) and the ICAO standards 136 e) By controlling and assessing the locations of any activities which may be an attraction to birds. will not prejudice the development of zoned lands in Rathcoole. f) By limiting the extent, height and type of external lighting to avoid confusing pilots in the IE8 interpretationObjective 3: of aeronautical lights or cause dazzle or glare. TheTo implement extent of the the restriction principles necessary of shielding in inany assessing particular proposed instance development depends on its in purpose.the vicinity In ofsome cases,Aerodromes, more than having one regard purpose to Sectionmay have 3.23 to ofbe the served Irish in Aviation which caseAuthority a combination ‘Guidance of Material the restrictions on toAerodrome satisfy all Annex the purposes 14 Surfaces to be (2015)’. served will be necessary. IE8 Objective 4: To prohibit and restrict development in the environs of Casement Aerodrome in the following ways: a) By prohibiting development within the immediately adjacent approach areas to reduce the slight risk to persons on the ground and the increased risk to occupants of an aircraft in the event of the aircraft accidentally touching down outside the aerodrome boundary while taking off or approaching to land, except where development could not reasonably expect to increase the 137 number of people working or congregating in or at the property (this may include development such as the extension of an existing dwelling or a change of building use). In general, no development shall be permitted within the Public Safety Zones. b) By applying height restrictions to development in the environs of the Aerodrome. c) By eliminating potential sources of interference with the operation of electronic navigation aids. d) By obviating possible hazards to aircraft through the generation of smoke, dust or fumes which may reduce visibility. e) By controlling and assessing the locations of any activities which may be an attraction to birds. f) By limiting the extent, height and type of external lighting to avoid confusing pilots in the interpretation of aeronautical lights or cause dazzle or glare. The extent of the restriction necessary in any particular instance depends on its purpose. In some cases, more than one purpose may have to be served in which case a combination of the restrictions to satisfy all the purposes to be served will be necessary.

137 IMPLEMENTATION SOUTH DUBLIN COUNTY COUNCIL DEVELOPMENT PLAN 2016 - 2022 Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 11

Conical Surface and Generally, development will be acceptable in this zone provided the development is under the height 3.3 (iii)restriction The of 45paragraphs metres above on the ‘Inner elevation Horizontal datum of the Surface’ Aerodrome (86.6m OD). in Section 11.6.6 ‘Aerodromes’ on pages 227 to 231 of the Plan: The applicant shall be required to detail the OD height of the proposed development, in the context of IMPLEMENTATIONthe IMPLEMENTATIONrelevant Aerodrome. SOUTH DUBLIN COUNTYSOUTH COUNCIL DUBLIN DEVELOPMENT COUNTY COUNCIL PLAN DEVELOPMENT 2016 - 2022 PLAN 2016 - 2022

Inner Horizontal Surface Generally, development will be acceptable in this zone, subject to the development having an OD height below the height restriction of the Inner Horizontal Surface (generally 45 metres above the elevation datum of the Aerodrome). In general, this will be applicable to development above the prevalent c buildingConical height Surface (based Conical on OD) ofSurface the area. The Inner Horizontal Surface of Casement is 86.6 metres OD [ orrection: this 86.6 andGenerally, Weston is development 91.3 metresGenerally, OD. will Similar be development acceptable to development in will this be zone acceptable within provided the inOuter the this development Approachzone provided Surface, is theunder thedevelopment the applicant height isfigure under the height shouldrestriction demonstrate of 45 metres thatrestriction the above proposed theof 45 elevation metres development abovedatum theis of not theelevation an Aerodrome obstacle datum to (86.6m ofthe the Aerodrome OD). Aerodrome airspace. (86.6m OD). should read 131.6m o.d.] TheThe applicant applicant shall shall be beTherequired required applicant to detailto shalldetail the be the OD required OD height height to of detail theof the proposed the proposed OD height development, development, of the proposed in thein the context development, context of of in the context of thethe relevant relevant Aerodrome. Aerodrome.the relevant Aerodrome.

OuterInner Horizontal Horizontal Surface SurfaceInner Horizontal Surface In areasGenerally, beyond development the limitsGenerally, of will the be Conicaldevelopment acceptable Surface, in will this objects be zone, acceptable and subject proposed in to this the development zone,development subject whichto having the extenddevelopment an OD to height a having an OD height heightbelow of the150 heightmetres restriction orbelow more theabove of heightthe the Inner ODrestriction Horizontalelevation of theof Surface the Inner Aerodrome (generally Horizontal should 45 Surface metres be regarded(generally above the as 45 elevation obstacles, metres above the elevation unlessdatum a special of the Aerodrome).aeronauticaldatum Instudyof general,the indicates Aerodrome). this will that be In they general,applicable do not this constitute to will development be applicable a hazard above to to aeroplanes. development the prevalent above the prevalent building height (basedbuilding on OD) height of the (based area. The on OD) Inner of Horizontalthe area. The Surface Inner of Horizontal Casement Surface is 86.6 ofmetres Casement OD is 86.6 metres OD Departmentand Weston of is Defence 91.3 metresand Restrictions Weston OD. Similar is 91.3 to metres development OD. Similar within to development the Outer Approach within theSurface, Outer the Approach applicant Surface, the applicant 3.4 Wea) shouldInner have Z demonstrate onenoted thatshould that there the demonstrate isproposed a misprint development that inthe the proposed Development is not developmentan obstacle Plan to is the not in Aerodrome anthe obstacle paragraph airspace. to the Aerodrome airspace. reproducedTheWithin applicant the directlyDoD shall Inner beThe above: Zone,required applicant in the view to shalldetailInner of the be the Horizontalvolumerequired OD height of to helicopter detail of Surface the the proposed operations OD of height Casement development, ofand the the proposed Aerodromelevel in theand development, context of in the context of is inthevariety fact relevant ofset aircraft atAerodrome. 131.6 trainingthe metres relevant movements ODAerodrome. [not and forat 86.6msafety and OD security as written, reasons, which planning is applicationsthe aerodrome’sfor structures datum such as level, high mastabove lighting which and the antennae, IHS is in established the Inner Zone (at will 45m be subject higher)]. to special Outerexamination Horizontal by the SurfaceOuter DoD to Horizontal ensure that Surface their construction would not be undesirable for safety, Insecurity areas beyond or operational the Inlimits areas reasons. of beyond the Conical the limits Surface, of the objects Conical and Surface, proposed objects development and proposed which development extend to a which extend to a height of 150 metresheight or more of 150above metres the OD or moreelevation above of the AerodromeOD elevation should of the be Aerodrome regarded shouldas obstacles, be regarded as obstacles, 3.5 ChangedIn general, Runway within the Designations DoD Inner Zone (delineated on Development Plan Map), in addition to the unlessObstacle a special Limitation aeronauticalunless Surfaces a special study for the indicates aeronautical Aerodrome, that studynothey buildings do indicates not constitute or thatstructures they a hazarddo exceeding not toconstitute aeroplanes. 20 metres a hazard in to aeroplanes. height above ground level should be permitted except where specifically agreed in writing following Department of DefenceDepartment Restrictions of Defence Restrictions As consultationnoted in para. with 1.5(iii)the DoD thatabove, the proposedthe runways development at Casement will not Aerodromeaffect the safety, have efficiency been or redesignateda)regularity Inner Z oneof inoperations Februarya) Inner at the 2019; Zone aerodrome. this means that where the S.D.C.C. Development Plan refersWithin theto CasementDoD InnerWithin Zone, runways the in view DoD 11/29 ofInner the Zone,volume and in05/23, ofview helicopter of these the volume operations same of runways helicopter and the are leveloperations now and and the level and b) Security Zone designatedvariety of(and aircraft referred trainingvariety to ofinmovements aircraft this report) training and for as safety movementsCasement and security and runways for reasons,safety 10/28 and planning security and applications 04/22.reasons, planning applications Casementfor structures Aerodrome such as isfor thehigh structures only mast secure lighting such military as and high antennae, aerodrome mast lighting in inthe theand Inner State. antennae, Zone The will requirement in be the subject Inner Zonefor to specialsuch will be subject to special a facility has been underlined by its use for the highest level inter-governmental tasks and for [Theexamination runways at by theWeston examinationDoD toand ensure Dublin by that the theirDoDAirports constructionto ensure have that wouldnot their been constructionnot beredesignated undesirable would for not(and safety, be undesirable for safety, sensitivesecurity extraditions. or operational Thesecurity reasons. arrivals or operational area is not overlookedreasons. from any building in close proximity and remainconsequently, the same there as describedis a requirement in the to imposecurrent restrictions Development on development Plans. However,in that area sinceand in DecembercloseIn general, proximity 2017, within to Dublin the the aerodromeIn DoD general, Airport Inner withinboundary Zone has the(delineated become DoDto maintain Inner subject on Zone Development same. (delineatedto E.A.S.A. Plan on Map), Development(European in addition Plan to Map),the in addition to the Obstacle Limitation ObstacleSurfaces Limitationfor the Aerodrome, Surfaces nofor buildings the Aerodrome, or structures no buildings exceeding or structures 20 metres exceeding in 20 metres in AviationIn consideringheight Safety above appropriate Agency)groundheight level standardsdevelopment shouldabove ground be ratherpermitted within level than the should except Security the be where I.C.A.O. permitted Zone specifically adjacent except‘Annex to agreedwhere the 14’ Aerodrome, Standards inspecifically writing followingthe agreed in writing following referredfollowingconsultation to inrequirements the with S.D.C.C. theconsultation shall DoD bethatDevelopment addressed the with proposed the either DoD Plan.] development that as part the of proposed a development will not development affect submission the safety, will not orefficiency affectas a the or safety, efficiency or conditionregularity of permissionof operationsregularity where at the appropriate: ofaerodrome. operations at the aerodrome. Sterile Zone: A sterile zone shall be created from the existing Aerodrome boundary fence to the b) Security Zone b) Security Zone 3.7 Weboundary also point of theout development, that much subjectof the informationto a minimum widthconcerning of 2.5 metres. aviation This and zone aerodromes shall be gated Casement AerodromeCasement is the only Aerodrome secure military is the onlyaerodrome secure militaryin the State. aerodrome The requirement in the State. for The such requirement for such (includingwith access data confined for Casement to Defence militaryForces Personnel aerodrome) (or other has by beenarrangement). provided The by DoD our reserves own the righta facility to install has alarm been systemsunderlineda facility in hasthis by been itsarea. use underlined for the highest by its level use forinter-governmental the highest level inter-governmentaltasks and for tasks and for firm sensitiveto S.D.C.C. extraditions. (at sensitivethe The time arrivals extraditions. of areapreparation is not The overlooked arrivals of the area fromprevious is not any overlooked building Development in from close any proximity Plan).building and in close proximity and Boundaryconsequently, Fence ofthere Development:consequently, is a requirement A 3there metre to imposeis higha requirement clear restrictions visibility to onimpose fence development withrestrictions integrated in thaton development ram area defence and in in that area and in barriersclose shallproximity be erected to theclose whereaerodrome proximity the development boundary to the aerodrome to sharesmaintain aboundary boundary same. to with maintain the Aerodrome. same. CCTV:In considering Any new development appropriateIn considering along development the appropriate aerodrome within development theperimeter Security shall Zonewithin be adjacent covered the Security toby the tilt Zone Aerodrome,and adjacentzoom the to the Aerodrome, the camerasfollowing with requirements a minimumfollowing zoom shall beofrequirements 20:1,addressed or an improvedeither shall be as addressedpart magnification of a development either as as agreed. part submission of aFacilities development or shall as a be submission or as a providedcondition for ofthe permission imagescondition from where these of appropriate: permission cameras to wherebe shared appropriate: with the military authorities as and when required. Sterile Zone: A sterileSterile zone Zone:shall be A sterilecreated zone from shall the beexisting created Aerodrome from the existingboundary Aerodrome fence to the boundary fence to the boundary of the development,boundary of subject the development, to a minimum subject width to of a 2.5 minimum metres. width This zone of 2.5 shall metres. be gated This zone shall be gated with access confinedwith to accessDefence confined Forces Personnel to Defence (or Forces other Personnelby arrangement). (or other The by DoDarrangement). reserves the The DoD reserves the right to install alarmright systems to install in this alarm area. systems in this area. 230 Boundary Fence of Development:Boundary Fence A 3of metre Development: high clear A visibility 3 metre fence high clearwith integratedvisibility fence ram withdefence integrated ram defence barriers shall be erectedbarriers where shall the be development erected where shares the development a boundary with shares the a Aerodrome. boundary with the Aerodrome. CCTV: Any new developmentCCTV: Any along new developmentthe aerodrome along perimeter the aerodrome shall be covered perimeter by tiltshall and be zoom covered by tilt and zoom cameras with a minimumcameras zoom with of a 20:1, minimum or an improvedzoom of 20:1, magnification or an improved as agreed. magnification Facilities asshall agreed. be Facilities shall be provided for the imagesprovided from forthese the cameras images from to be these shared cameras with the to military be shared authorities with the asmilitary and when authorities as and when required. required.

230 230 Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 12

4. Layout, Elevations, & Coordinates of the Proposed Development

4.1 Below, to approx. scale 1:1,350, is a Roof Plan of the proposed development of 421 residential units beside Fortunestown Luas station, laid out in nine apartment blocks: D1 of 6 storeys, D2 of eight storeys, D3 of 6 & 8 storeys, D4 of 6 & 13 storeys, E1 of 1, 7 & 9 storeys, E2 of 7 storeys, and F1, F2, & G of 3 storeys each. Elevations (OD) of the highest elements, and coordinates of relevant corners, are shown. [In this diagram, darker blue shading indicates higher roof areas] towards Casement NORTH

~112.2m ▼ ▼124.6m n 53°17'07" 3 Storey w 06°25'33" Block ▼123.8m ↓ F1 3 Storey ▼132.5m Block 6 Storey G Block 3 Storey D1 Block F2

124.9m 140.9m ▼ ▼ n 53°17'06" ▼134.5m w 06°25'23" 8 Storey ~112.7m ▼ ↓ Block ▼155.7m D2 119.1m ▼ n 53°17'05" → 6+13 Storey w 06°25'31" Block 137.4m ▼ 137.3m 7 Storey D4 ▼ 134.9m ▼ 143.3m ▼ Block 140.9m 1,7+9 Storey ▼ Block E2 6+8 Storey ~114.6m E1 Block ▼ D3 luas

fortunestown luas station towards Saggart

roof plan of proposed development with elevations (o.d.) of highest parts O’Dwyer & Jones Design Partnership scale [A4-size] 1:1350 approx. aviation planning consultants © 4-2021 Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 13

5. The Site in Relation to the Inner Horizontal Surface at Casement

As noted above, the Inner Horizontal Surface at Casement Aerodrome is at 131.6 metres OD (being 45m above the Department of Defence’s chosen datum of 86.6m, which was the elevation of the aerodrome’s lowest runway threshold). On the ‘Asset’ diagram below [containing Irish Aviation Authority & Air Corps data] this I.H.S. is shown coloured blue, with the site’s location inserted in red+yellow. Approach Surfaces (and the narrower Take-Off Climb Surfaces) are included in purple. —

5.1 It can be seen that the site (to south-east of Casement’s main runway 10/28, and at 1.97km-2.21 km laterally from the centreline of Casement’s subsidiary runway 04/22) falls within the area of the aerodrome’s Inner Horizontal Surface, but is well clear of all Approach and Take-Off-Climb Surfaces.

5.2 Ground levels on the site rise from 110.7m to 117.3m OD which is 14.3m below the Inner Horizontal Surface. Proposed building heights range from ~12m for the lowest 3-storey block [G] to ~43m for Block D4, the tallest of the nine blocks. As shown on the previous page, elevations OD of the highest points of each block are as follows: Block G: 123.8m, F1: 124.6m, F2: 124.9m, D1: 132.5m, E2: 137.4m, D2 & D3: 140.9m, E1: 143.3, and Block D4: 155.7m OD.

This means that parts of the development (Blocks E1, E2, D1, D2, D3 & D4) extend above Casement’s Inner Horizontal Surface – by varying amounts of up to 24.1m at Block ‘D4’. Consequently the following aeronautical study is required to assess whether these intrusions above Casement’s Inner Horizontal Surface will have any significant effect on aviation at the Aerodrome. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 14

6. Assessment in relation to Casement’s Inner Horizontal Surface

6.1 Because the proposed development is likely to project above Casement’s Inner Horizontal Surface (by varying amounts from 0.9m to 24.1m as listed in para. 5.2 and as indicated in the diagram below) an aeronautical study is required to assess whether these intrusions above Casement’s Inner Horizontal Surface will have any significant effect on aviation at the Aerodrome. This analysis is provided in Sections 7, 8 & 9, following, with maps, diagrams, and section drawing.

155.7m OD ▼

<< towards Dublin Mountains towards Casement Aerodrome 140.9m OD >> ▼ Casement Aerodrome 134.5m OD Inner Horizontal Surface I.H.S. at 132.5m OD 131.6m ▼ at 131.6m OD 131.0m 131.6m OD ▼ ▼ ▼ ▼ ▼

Block D3 Block D4 Casement Aerodrome Datum at 86.6m OD ▼

6.2 There are two primary considerations/methodologies in assessing the significance of any projection above an aerodrome’s/airport’s Obstacle Limitation Surface. —

(i) The first consideration is the overall significance and applicability (at the aerodrome in question) of the particular Surface above which an object may be likely to project. In relation to Casement Aerodrome, this is analysed in accordance with the definitions and guidelines of ICAO, as contained in its Annex 14 - Volume I: Aerodromes, and in its other documents.

(ii) The second consideration is an assessment (a) as to the presence of any other existing ‘obstacles’ in the vicinity of the proposed new ‘obstacle’, and (b) as to whether or not any such existing ‘obstacle’ will provide a ‘shielding’ for the new obstacle (following guidance by ICAO & other aviation authorities) so that the new object will not constitute a new hazard to aviation.

A third (more subsidiary) consideration with regard to Inner Horizontal Surfaces and Conical Surfaces, is an assessment as to whether any significant (mitigating) factors exist in the choice of vertical datum or horizontal extent for the particular Surface. This arises because location of the Inner Horizontal Surface is subject to subjective choice – which varies from airport to airport, and country to country – rather than being objectively and precisely defined by ICAO or EASA. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 15

7. Applicability (per ICAO) of this Sector of Casement’s Inner Horizontal Surface

The Aerial Photo Image & Diagram opposite shows the extent of Casement’s Inner Horizontal & Conical Surfaces. This drawing includes Ordnance Survey contours & hill /mountain peaks [], as well as selected ‘obstacles’ []: Saggart Church, Rathcoole Church, and the 27.5m high lighting masts across the Approach to Runway 04. Casement Casement Aerodrome’s Aerodrome Inner Horizontal Surface

Casement Aerodrome’s Conical Surface Runway 10/28

Transitional Surfaces

Site location

Runway 04/22Citywest 27.5m high Lighting Masts Rathcoole Saggart on Naas Rd. across the Church Church Approach to Runway 04

Inner Horizontal Surface goes underground and Dublin has no effect here Mountains

Conical Surface goes underground and has no effect here

O’Dwyer & Jones Design Partnership aviation planning consultants © 5-2021 Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 16

7.1 In assessing the overall applicability of the particular Surface [item 6.2(i) above], the relative importance of the particular Surfaces is considered:

The various Obstacle Limitation Surfaces are defined by ICAO in its International Standards and Recommended Practices in its Annex 14 – Volume I: ‘Aerodromes’ document (as revised in 2018 >>).

While it is a ‘Standard’ of I.C.A.O. (i.e. a mandatory requirement, set out in paragraphs 4.2.19 and 4.2.15 of its Annex 14 ) that new objects should not project above an aerodrome’s Approach or its Take-Off Climb Surfaces, it is merely a ‘Recommendation’ (defined by I.C.A.O. as ‘desirable’), under paragraph 14.2.20 of Annex 14, that “new objects should not be permitted above … the inner horizontal surface, except when … shielded by an existing immovable object or after aeronautical study it is determined that the object would not adversely affect the safety or significantly affect the regularity of operations of aeroplanes.” The first consideration is that an Inner Horizontal Surface – while it should normally be protected – is not regarded by I.C.A.O. as one of the more critical Obstacle Limitation Surfaces.

7.2 Secondly, in assessing the overall applicability of the particular Surface [per 6.2(i) above], the purpose of an Inner Horizontal Surface (as stated by ICAO) must be noted:

The purpose of an Inner Horizontal Surface is stated by I.C.A.O. (in Section 1.2.3 of its Airport Services Manual >) as being “to protect airspace for visual circling prior to landing.” It also goes on to say that “In some instances, certain sectors of the visual circling areas will not be essential to aircraft operations, and provided procedures are established to ensure that aircraft do not fly in these sectors, the protection afforded by the inner horizontal surface need not extend into those sectors.” [See Aerodrome Chart on the following page >.]

7.3 In relation to the above provisions set out in ICAO’s Airport Services Manual, it is important to note that – due to the extensive rising ground to the south and east of Casement Aerodrome – (a) circling by aircraft is prohibited by the I.A.A. (and by GOC Air Corps) in the area to south of Casement’s main Runway 10/28; and (b) this is the sector where this Cooldown Commons site is located. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 17

7.4 “No Circling South of Rwy [Runway] 10/28” is stated on all current and all recent Casement charts, of which one example dated February 2019 is shown below.

[<< note : on aviation charts, vertical dimensions are given in feet, & horizontal dimensions in metres] Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 18

7.5 The reason this prohibition has been made on the circling of aircraft to the south (and east) of Casement’s main runway 10/28, is that there is extensive rising terrain (i.e. the Dublin Mountains) in this sector, as indicated on page 15 and in the diagram below. This land rises to such an extent that the ground itself – including 1 kilometre length of the Naas Road, and a large number of existing structures – penetrate Casement’s I.H.S. to a significant extent. This means that aircraft cannot fly (or circle) anywhere near the elevation of Casement’s Inner Horizontal Surface: they are required to fly at much higher ‘obstacle clearance altitudes/heights’ [as in the Chart on the previous page]. Additionally, the Rules of the Air Order requires aircraft to fly generally at a minimum of 150m above ground level or above any structure (and at a minimum of 300m above any built-up area). The existing intrusions above Casement’s Inner Horizontal Surface include Verschoyle’s Hill, directly to the south of this Citywest site, which projects above Casement’s Inner Horizontal Surface to an elevation of 336m OD. This is a projection of 204m – more than 4½ times the height of the Surface itself. NORTH

the proposed development is located well within the sector where circling of aircraft is NOT permitted

7.6 This means that the protections normally afforded by the Inner Horizontal Surface do not apply above this particular site, and for that reason alone the proposed projection (by 24.1m) above the Inner Horizontal Surface will not constitute a hazard to aviation. However further ‘shielding’ reasons also apply (as in Section 8 following) >>. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 19

8. Assessment of Potential ‘Shielding’ by Other Existing ‘Obstacles’

8.1 An assessment as to whether or not the proposed intrusion above Casement’s Inner Horizontal Surface would also be ‘shielded’ by other existing ‘obstacles’ [as per assessment item (ii) in paragraph 6.2 on page 14 above] is as follows:

8.2 By way of setting the context for this, we include below a photograph (with Casement Aerodrome visible in the distance) taken on the Naas [N7] Road at the location where a 1km stretch of the road surface itself – at 144m OD – projects (by up to 12.5 metres) above Casement Aerodrome’s Inner Horizontal Surface. The vehicles on this road constitute ‘obstacles’ which project by up to 17m above Casement’s Inner Horizontal Surface, and the road signs and lighting masts along it project above it by up to 24.5m. Although in a different sector, this is comparable to the 24.1m projection of the proposed D4 apartment block at Fortunestown.

8.3 Further details of existing tall (or elevated) buildings, trees, and pylons in the vicinity of the Cooldown Commons site at Fortunestown – and relevant to the analysis of its ‘shielding’ – are shown on an aerial photo map on the following page on which the site is outlined in yellow. [The map is oriented in a direction perpendicular to Casement’s subsidiary Runway 04/22, so that the relative distances of the various objects from that runway’s centre-line are more easily apparent].

A portion of the aerial photo map on the following page is also shown on page 24, along with a Longitudinal Section through the site taken perpendicular to Runway 04/22, on which elevations OD of the relevant items are included. p

X hi 20 s r 5-2021 ne ©

rt a P ants n t

ig RWY 10/28 RWY es

Casement Aerodrome D

consul

nes o Naas Road at142m OD Masts along J Take-off & Inner Take-off ←27.5m Lighting (above , Approach CASEMENT RUNWAY 04/22 (1462m) & Horizontal Surfaces planning Approach & Take-off Climb Surfaces r

e 04

to unway ode y

scale 1:13,333 approx. [a3-size] scale 1:13,333 approx. R 04/22 (C 3) → w

FLIGHT STRIP 280 x 1582m tion D ’ via a O

m 62 OD Rathcoole at 135. Church → ) ▪ ● O .: s unlit of Runway 04/22 . ( h . i

mast

• Λ above

1.6km from Houses to Extended Centreline 1.6km from Houses tour pylon ←along the / objects Line of Trees Line of Trees

140mOD con- 1.47km from Church to Centreline of Runway 04/22 1.47km from Church to Centreline [at 151.3m OD]

pole

— ←

2.1km from Block ‘D4’ to Centreline of RUNWAY 04/22 to Centreline of RUNWAY 2.1km from Block ‘D4’ • : o

156.15m OD at elevation:

SAGGART (1366m to S-W) Saggart Church 1.8km from Trees at 164.9m to Centreline of RUNWAY 04/22 at 164.9m to Centreline of RUNWAY 1.8km from Trees outline

tree

• * contour site

: the 150mOD to S-W along Line of Trees Line of Trees [at 164.9m OD] houses → at 173m OD Proposed

Two existing Two

Development at 155.7m OD acles

incl Block D4

←

↑ obst ←SITE

. . contour ↑ ↑

approx

Extensive Land Land Extensive

above the 155m OD 155m the above to s-w line of pylons

town ↑ S: CHART

Fortunes-

↑ CITYWEST ] 1:13,333 size

131m OD 131m

Buildings above above Buildings

Extensive Land & Land Extensive ↑ MENT AS MARKED ON CASE ACLES

on page 22 OBST 1

ground and elevated PLAN SCALE [A3- Surfaces O MAP Above Land

↑ ↑

Very Extensive Very SURFACE Casement’s Conical Casement’s CONICAL

and Inner Horizontal

S CONTOUR CASEMENT’S PHOT Aerial Map View Aerial Map [perpendicular 04/22] to Runway m

1 10 X Longitudinal Section X-X ith AERIAL W 8.5 SHD at Cooldown Commons, Citywest, Dublin Citywest, 24 Aviation Commons, re Report at Cooldown SHD Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 21

8.5 ICAO provides guidance with regard to ‘shielding’ of ‘obstacles’ within its Airport Services Manual – Part 6: Control of Obstacles. [This is the same document referred to in para. 7.2 above.] EASA also refers to this document in regard to ‘Shielding’.

ICAO provides (in its Airport Services Manual para.2.9.3) that “the formula for shielding should be based on a horizontal plane projected from the top of each obstacle away from the runway [etc.]” It also notes that “objects would be shielded by existing structures of a permanent and substantial character or by natural terrain or topographic features of equal or greater height…”

8.6 TheICAO Airport Services Manual refers to Australian shielding policy as an example, and current Australian policy [under its Part 139 (Aerodromes) Manual of Standards 2019] provides – in relation to objects to the side of a runway strip – that “A new obstacle may be assessed as not imposing additional restrictions if it does not exceed the height of an existing obstacle which is closer to the runway strip and the new obstacle is located perpendicularly behind the existing obstacle relative to the runway centre line.”

8.7 It can be seen from the maps and section drawing on the preceding page and on page 24 following that the site is surrounded by other tall objects including permitted buildings on adjoining sites (and immediate vicinity) rising to 137m OD to the west, 138.7m OD to south, and 143.3m OD to south-east.

Using the principle outlined in 8.5 & 8.6 above, Block D1 (132.5m) is shielded by the permitted building at 137m to its west. And Blocks D2, D3, E1, & E2 (which are all lower or equal to the permitted building at 143.3m to their east) can all be assessed together with D4 (at 155.7m OD), the tallest of the 6 apartment blocks.

It should be noted that Block D4 has been reduced in height by two storeys for the resubmission of this planning application, for the following reasons: (a) to take into account the concerns of the Department of Defence & Air Corps, and (b) to avail of the shielding provided by an existing permanent ‘obstacle’ in the vicinity of the development – and located 0.6km+ closer to the centreline of runway 04/22.

8.8 The existing permanent ‘obstacle’ which provides the necessary ‘shielding’ for all of the proposed development (at 1.97km-2.21km from Runway 04/22) is the nearby Saggart Church (at 1.47km from Runway 04/22). St Mary’s Church, to the Citywest side of Saggart, stands on elevated ground at 125.45m OD (~10 metres higher than the Fortunestown site), and it rises by 30.7m to 156.15m OD (at its lightning rod) and to 155.7m OD at each of its four stone pinnacles. This is a projection of 24.55m above Casement’s I.H.S. (but not marked or lit, or seen as a hazard to aviation – i.e. it is not shown on any aviation chart). Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 22

8.9 The relationship of the proposed apartment block D4 to Saggart Church – which is on higher ground and nearer to runway 04/22 – is illustrated below. [To ensure the permanency of the ‘shielding’, the level chosen for the reduced height of D4 is the level of the top of the church’s four pinnacles (rather than of its lightning rod half a metre higher).]

towards Casement Aerodrome >> towards Casement Aerodrome >>

155.7m OD 156.15m OD 156.15m OD

▼ ▼ ▼

Casement Aerodrome 143.3m OD Inner Horizontal Surface ▼ at 131.6m OD 140.9m OD building at Citywest Road ▼ 134.5m OD 131.6m OD ▼ ▼

▼ Ground at 125.45m OD

Casement Aerodrome Block ‘D4’ Saggart Church Datum at 155.7m OD at 156.15m OD at 86.6m OD ▼

8.10 The views above look towards the south-west (from Fortunestown towards Saggart), and it can be seen that Block D4 – at 2.07 km from the centreline of Runway 04/22 – lies below the level of the topmost point of Saggart Church (being at the same elevation as the four stone pinnacles of its tower) – which is at 1.47km from the centreline of the Runway 04/22 (i.e. at 0.6km closer to that runway).

The combined view below is a Cross-section taken at Saggart Church, looking north-east towards Fortunestown, with Block D4 at its actual elevation behind the church (and located at 0.6km more distant from Runway 04/22).

8.11 Consequently, Block D4 is << towards Casement Aerodrome

fully shielded 156.15m OD 155.7m OD 156.15m OD

by the Church ▼ ▼ ▼ tower at Saggart. Casement Aerodrome Inner Horizontal Surface And this same at 131.6m OD ‘shielding’ also I.H.S. at131.6m OD applies to all ▼ other proposed ▼ blocks: D1, D2, Ground at 125.45m OD D3, E1, & E3, so that all of the level of proposed buildings in relation to development is Casement Aerodrome Datum Saggart Church at 156.15m OD – and at 1.47km from Rwy 04/22 centreline shielded per at 86.6m OD ICAO guidance. ▼ Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 23

8.12 Further shielding is provided by other objects which appear on the maps and section on pages 20 & 24, of which another example is illustrated below. This shows the location of a line of trees just beyond Saggart, located beside the 150m OD contour, with a 15.7m-tall tree measured at 164.9m OD, i.e. 9.2m higher than the proposed development and closer to Runway 04/22 (at 1.8km):

towards Casement Aerodrome >> towards Casement Aerodrome >>

164.9m OD 164.9m OD Trees ▼ ▼

155.7m OD ▼

▼ 143.3m OD Ground at ▼ 140.9m OD 150m OD building at Citywest Road ▼ Casement Aerodrome 134.5m OD Inner Horizontal Surface 131.6m OD ▼ at 131.6m OD ▼ ▼

trees beside Páirc Mhuire Casement Aerodrome Block ‘D4’ Rd., Saggart Datum at 155.7m OD at 164.9m OD at 86.6m OD ▼

8.13 The views above look towards the south-west (from Fortunestown towards Saggart), and it can be seen that Block D4, at 2.1km from the centreline of Runway 04/22, lies 9.2m below the trees which are at 1.8km from the centreline of the same runway.

The combined view below is a Cross-section taken through Páirc Mhuire Road, looking north-east towards Fortunestown, with Block D4 at its actual elevation behind these trees (and located at 0.2 km more distant from Runway 04/22).

<< towards Casement Aerodrome 8.14 These trees, (and other trees along the 140m OD 164.9m OD contour at 1.6km 161.7m OD ▼ ▼

from the centre- 155.7m OD line of Runway ▼ 04/22) – all of ▼ Ground at which are shown 150m OD Casement Aerodrome as ‘obstacles’ on Inner Horizontal Surface at 131.6m OD IAA ‘Asset’ data ▼ – provide further shielding for the proposed development. level of proposed buildings in relation to All these items are trees beside Páirc Mhuire Rd., Saggart on the Map & at 164.9m OD – and at 1.8km from Rwy 04/22 centreline Section following. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 24

8.15 Longitudinal Section Diagram & Map 1:13,333 horizontal scale 1:1,333 vertical scale approx. [a3-size]

O.D. ↑ ↑ ^ LUGG HILL ^ rising to 308m OD ↑ Levels 200m ^ VERSCHOYLE HILL ^ (176m above Casement’s I.H.S.) ^ WINDMILL HILL ^ 190m steeply rising to 336m OD 9 173m OD 190m ( Casement’s I.H.S.) 164. m OD rising to 216m OD 204m above 2 Existing << & Take-Off Approach >> Approach >>

Existing line Flight Path 180m 155.7m OD Houses 156.15m OD 180m ~165m OD ~160m OD of Trees Existing buildings Existing Trees Saggart Church Tower 170m Trees (of varied heights) ~147m OD 139m-149m 170m 47 c in Citywest area Existing pylons (at 1. km from Rwy L) 160m 143.3m OD 160m CONICAL Apartments 138.7m OD SURFACE INNER HORIZONTAL SURFACE at OD 150m 131.6m 150m at 5% 143.3m Existing buildings (45m above Casement Aerodrome Datum Level) 142m OD 5 140m *l ** (of varied heights) 135.62m OD (27. m masts) 140m * in Saggart area l *l *l ll (Rathcoole Church) ~132m* OD ** l ll Transitional Surface 130m ~140.5m OD 45 130m (Castolin Elec.) (United Drug) 125. m OD 120m 120m 45m 113.25 m OD Rwy 04/22 110m Site at ~112m -114m OD 110m

Development Runway Strip Residental Proposed 100m < 280 m > Rwy 04/22 at 100m 93.3 - 97.2m OD 90m 90m ^ CASEMENT AERODROME DATUM LEVEL set at 86.6m OD ^ 80m 80m 1.47km from Saggart Church to centre of Runway 04/22 O.D. O.D. LONGITUDINAL SECTION X1-X [A3-size]: to HORIZONTAL SCALE 1:13,333 approx. with VERTICAL SCALE 1:1,333 approx. Casement Aerodrome Levels Subsidiary Runway 04/22 (Code 3) PERPENDICULAR TO RUNWAY 04/22, LOOKING SOUTH (Note Aeronautical Section: Vertical Scale =10x Horizontal Scale)

2.1km from Block ‘D4’ to centre of RUNWAY 04/22 elevated ground ↑ ↑ ↑ Saggart Church ↑ Extensive Land ↑ line of pylons 1366m to S-W of above the 155m OD to s-w site, at 156.15mOD contour 04 SAGGART↑ ↑ CASEMENT RUNWAY 04/22 (1462m)

FLIGHT STRIP 280 x 1582m ↑ Extensive Land & Buildings131m aboveOD CITYWEST Proposed Development CONICAL SURFACE incl Block D4

CASEMENT’S ← at 155.7m OD 1.97km from SITE to Centreline of RUNWAY 04/22 Fortunes- town

X1 ←SITE X

RWY 10/28

AERIAL PHOTO MAP PLAN SCALE [A3-size] 1:13,333 approx. site outline: — nearby objects above i.h.s.: O●▪ O’Dwyer & Jones Design Partnership With 10m CONTOURS and OBSTACLES AS MARKED ON CASEMENT CHARTS: obstacles: *• tree o • pole/pylon Λ• mast(unlit) aviation planning consultants © 5-2021 Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 25

9. Assessment of Other I.H.S. Factors – Choice of Datum Level for Casement:

9.1 The choice of datum level for an Inner Horizontal Surface is, to a degree, subjective (unlike Approach and Take-Off-Climb Surfaces, the elevations of which are very precisely determined). It is up to each aerodrome to choose its own datum for the setting out of its I.H.S., and at Casement a particularly low datum (i.e. the level of the aerodrome’s lowest threshold) was chosen, so that its I.H.S. was set at a particularly low level relative to other aerodromes. A frequent datum for setting out an I.H.S. is the elevation of the Aerodrome’s Reference Point – which for Casement is given as 319ft /97.2m OD. If this 10.6m (35ft) higher datum had been chosen, the I.H.S. would lie at 142.2m OD, i.e. above almost all of the development except Blocks D4 & E1 (and just barely below the top of Block E1)

Annex to ED Decision 2017/021/R

9.2 E.A.S.A. [The European Aviation Safety Agency] – European Aviation Safety Agency which since the end of 2017 sets the standards for Dublin and other medium-to-large European airports – provides Certification Specifications

(among other options) the following guidance for the and

establishment of a datum for an Inner Horizontal Surface Guidance Material in its Guidance Material for Aerodromes Design of 2017 [>]: “the elevation of the highest point of the highest threshold for

of the related runway” or “the aerodrome elevation”, etc. Aerodromes Design If either of these had been chosen for Casement CS-ADR-DSN Aerodrome, its Inner Horizontal Surface would also lie

at 142.2m OD (45m above the aerodrome elevation of Issue 4 8 December 20171 97.2m), i.e. above most of the proposed development, and

1 For the date of entry into force of this Amendment, kindly refer to Decision 2017/021/R in the Official Publication of the above most other nearby buildings. Agency.

9.3 I.C.A.O. states (in its Airport Services Manual, Part 6 ‘Control of Obstacles’ ) that ‘selection of the datum’ for an I.H.S. ‘should take account of (a) the elevations of the most frequently used altimeter setting datum points;’ and ‘(b) minimum circling altitudes in use or required.’ If the altimeter setting datum at Casement were adopted as the datum for its I.H.S., as indicated by I.C.A.O., its I.H.S. would lie significantly higher than at present, at between 136m OD and 142.2m OD.

9.4 The Irish Aviation Authority recommends consideration of a midpoint between runway end elevations as the datum for setting out an Inner Horizontal Surface (as done at Dublin Airport), which if applied at Casement would place its I.H.S. at up to 5.15m higher. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 26

9.5 Internationally, the choice of datum for the setting out (45m higher) of an Inner Horizontal Surface varies from country to country: Germany and Spain tend to use the elevation of the aerodrome’s reference point [ARP], while France uses the elevation of the airport’s/aerodrome’s highest runway threshold. Below is a diagram of the overlapping Obstacle Limitation Surfaces around Paris Charles de Gaulle and Paris Le Bourget Airports, at both of which airports the elevation of the highest runway threshold* is the datum for its I.H.S.:

Data: Paris Ch. de Gaulle lowest threshold = 97m highest threshold = 118m * I.H.S. at 118m + 45m = 163m Paris Le Bourget lowest threshold = 44m highest threshold = 67m * I.H.S. at 67m + 45m = 112m

Paris Ch.de Gaulle I.H.S. at 163m

Paris Le Bourget I.H.S. at 112m

At Paris Charles de Gaulle Airport ↑ (with 76m passengers & 498,000 aircraft movements in 2019), and at other French airports, the airport’s highest runway threshold – not the lowest as at Casement – is the airport’s datum for setting the levels of its obstacle limitation surfaces.

9.6 If the datum for Casement Aerodrome had been set using any of the different national or international methods outlined above (in paragraphs 9.1 to 9.5), the Inner Horizontal Surface at the Aerodrome could have been up to 11m higher (e.g. at 143m OD). This would have meant that fewer objects on the elevated land to south of the Aerodrome would have been deemed ‘obstacles’ to aviation. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 27

10. Conclusion with regard to Casement’s Inner Horizontal Surface)

10.1 We are satisfied, for the reasons given in Sections 6, 7, 8, & 9 above, that the proposed development is sufficiently shielded (by multiple existing objects, including Saggart Church in particular) that the intrusions above Casement’s Inner Horizontal Surface (by varying amounts of up to 24.1m above it) are such that (in I.C.A.O.’s terms) these “would not adversely affect the safety or affect the regularity of operations of aeroplanes.”

10.2 These reasons for this assessment can be summarized as follows:

(a) There are large numbers of existing projections (of greater height), both land and structures, in the vicinity of the Cooldown Commons site.

(b) Because of this, circling of aircraft is not permitted by the I.A.A. or by the Air Corps in the sector (south of Casement’s main runway) where this site is located.

(c) Inner Horizontal Surface protection is not required in sectors where the visual circling of aircraft is not permitted.

(d) The Inner Horizontal Surface is considered by I.C.A.O. as a less significant surface, and the avoidance of new projections above it is an I.C.A.O. “Recommendation” (i.e. “desirable”) rather than an I.C.A.O. “Standard” (i.e. “necessary”).

(e) Existing (and future permitted) development in the immediate vicinity of the site provides a variety of ‘Shielding’ to the proposed development, and the nearby Saggart Church – at 0.6km closer to the centre-line of Casement’s subsidiary runway 04/22, and extending to a higher elevation OD – provides ‘Shielding’ to all of the proposed development.

(f ) The Inner Horizontal Surface at Casement has been set at an unusually low elevation, and if a higher [97.2m OD] datum had been chosen (in accordance with E.A.S.A. and other international guidelines) all but two of the proposed apartment blocks would lie entirely below the aerodrome’s Inner Horizontal Surface.

For all the above reasons, the intrusion of up to 24.1m above Casement’s Inner Horizontal Surface would be considered aeronautically acceptable in this location. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 28

11. Other Aviation Considerations

11.1 Tower Cranes etc During Construction

(a) Notifications: Any tower cranes used in the construction of the proposed development will project to a greater extent above the Inner Horizontal Surface. It will be necessary [under S.I. 215 of 2005 – ‘Irish Aviation Authority (Obstacles to Aircraft in Flight) Order’ ] for prior notification of the use of any crane/s to be submitted, at least 30 days in advance, to the Irish Aviation Authority and to Casement Aerodrome, who may need to issue the necessary notifications to pilots, and who may require to have any tower cranes fitted with obstruction lighting.

(b) ‘PANS-OPS*’ Considerations: As well as the Annex 14 Surfaces described above, there are other higher PANS- OPS* Surfaces [>>]. These are used to establish flying minima [OCA/H**] in the vicinity of an aerodrome, which are published in the Aerodrome’s Approach/Departure Charts. * = Procedures for Air Navigation Services – Aircraft Operations. ** = Obstacle clearance altitude/height.

It is beyond the scope and purpose of this report to enter into any detailed PANS-OPS calculations.† These will have been prepared by the Air Corps (based on a survey of all controlling obstacles), and consultation with the Aerodrome is advised prior to construction on site, to ensure that any proposed temporary structures (in particular any tower cranes) will not interfere with PANS-OPS surfaces or affect the aerodrome’s published OCA/H.

↑ † Our own outline calculation (per ICAO Doc 8168 , for a Runway 22 ‘missed approach’ turn, indicates an ‘MOC’ (minimum obstacle clearance) above the Fortunestown site at 28m approx*** above the highest element on this site, i.e. at (or above) an elevation of 183.7m /603ft OD. [*** 2.2 km laterally = 3.5 km semicircular distance × 0.8% slope = 28m MOC.] As the lowest OCA/H published for this more elevated sector is 219.5m /720 ft OD [see Chart on p.17, with heights given in feet] it would seem that this 36m /117ft distance between the MOC and OCA/H indicates that no amendment of procedural minimum altitudes is anticipated.

And in regard to the Department of Defence’s reference (in its letter of 1st February ’21) to “PANS-OPS Surfaces”, a concern with regard to such Surfaces would not now arise, for the reason that the elevations OD of Saggart Church – and of the many tall trees in the Saggart area (at above 160m OD) – have already been taken into account in designing these Surfaces, and the revised Block ‘D4’, at a lower elevation, will have no further effect. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 29

11.2 Existing Cranes in the Immendiate Vicinity

A current NOTAM [a ‘Notice to Airmen’, included at Appendix ‘B’ on page 38 ] issued by Casement and the IAA gives notice of the presence of two tower cranes directly beside this Citywest site, which extend to 78 metres above ground level [‘AGL’]. At the location of the coordinates given for these two cranes the ground level is at 112m OD, so that these two cranes extend to 190m OD (i.e. 34.5m higher than the highest point of the proposed development). Since these tower cranes have apparently not given rise to any necessary adjustment to Casement’s declared OCA(H) [‘Obstacle Clearance Altitude/s (Height/s)’], this provides additional reassurance that the proposed development (with highest point 34.3m lower than these cranes) will not give rise to a change to Casement’s declared OCA(H) or to its PANS-OPS surfaces.

11.3 Glint & Glare

The solar/PV panels being provided on the roofs of the six apartment blocks have been assessed in a separate Glint & Glare Assessment by Innovision.

The Innovision report predicts that “major nuisance or hazardous glare can not be expected for aircraft landing at any of the runways or the ATCT at Casement Aerodrome, nor for the approaches for a helicopter landing at Tallaght Hospital Helipad.” And in the event that the Air Corps may require any adjustments done to PV panels after installation, this will be done.

11.4 Possible Aviation Obstruction Lighting

The site is not in a location where aircraft warning lights are essential (as it does not lie under any Approach Surface, or in a sector where visual circling of aircraft prior to landing is permitted). However, consideration should be given to the provision of such lighting if this may be considered desirable by the I.A.A. or Air Corps, with low-intensity lighting provided to the top of Block D4 (the highest element).

The provision of such lighting would add to safety in respect of other existing unmarked and unlit tall objects in the vicinity (such as Saggart Church’s tower, extending to a slightly higher elevation).

11.5 Lower Blocks D1, D2, D3, E1 & E2

In regard to the other (lower) blocks, it is worth noting that none of these lower blocks has aviation significance – (a) because none is higher than other recently permitted buildings in the immediate vicinity in the same Saggart-Citywest area; and (b) because in any group of closely co-located objects it is only the altitude of the most elevated object (i.e. Block ‘D4’) that has aviation significance. Aviation Report re SHD at Cooldown Commons, Citywest, Dublin 24 30

12. SUMMARY

12.1 Obstacle Limitation Surfaces in General

The site at Cooldown Commons, Citywest, lies well clear of all Approach Surfaces, Take-Off Climb Surfaces, and Transitional Surfaces at Casement Aerodrome, which are the more important ICAO Obstacle Limitation Surfaces.

12.2 Casement Aerodrome’s Inner Horizontal Surface

Parts of the proposed development project by varying amounts above Casement’s Inner Horizontal Surface, with the highest element being the roof parapet of Block ‘D4’) which extends to 155.7m OD (i.e. 24.1m above the I.H.S.). However, this projection is not aeronautically significant or (in ICAO’s wording) likely to “affect the safety or the regularity of operation of aeroplanes”, for the reasons listed in Sections 6, 7, 8, 9, & 10 above [on pages 14-27] – and in particular for the reasons (a) that (in accordance with ICAO guidance) “the protection afforded by the inner horizontal surface need not extend into” this sector, because circling of aircraft is prohibited in this sector due to the extensive rising ground; and (b) because the proposed development is Shielded by a nearby existing permanent object – i.e. Saggart Church – which extends to greater elevation OD and is located 0.6km closer to the centreline of Runway 04/22.

12.3 General

We consider that the proposed residential development at this Cooldown Commons site complies with all aviation and aeronautical requirements affecting the location.

Prior to submission of this report — (a) we have discussed this proposed develop­ ment, and its potential shielding etc., at a meeting on 10th March 2021 with Department of Defence and Air Corps personnel; and (b) we have provided to those authorities and to the Irish Aviation Authority a draft ‘advance copy’ of this report.

J. Declan O’Dwyer B.Arch MBA RIBA 21st May 2021 O’Dwyer & Jones Design Partnership ______Aviation Planning Consultants

O ’ D W Y E R & J O N E S D E S I G N P A R T N E R S H I P A V I A T I O N P L A N N I N G & A R C H I T E C T U R E C O N S U L T A N T S 2 8 L E E S O N P A R K • D U B L I N 6 • t e l .: 3 5 3 - 1- 4 9 8 1 8 9 3 [ f a x: 3 5 3 - 1- 4 9 6 4 4 1 0 ] ______www.AviationPlanning.ie e.: [email protected] / [email protected]

J. D. O’Dwyer B.Arch MBA RIBA S. Jones MA Aviation Report APPENDIX re SHD at Cooldown Commons, Citywest, 31

APPENDIX ‘A’

Previous Work by this Firm in regard to Aviation Planning at/re Casement Aerodrome

Since 1980, this firm, and the author of this report, have been closely involved in the planning of – and in aviation standards matters relating to – Casement Aerodrome (and other Irish & international military aerodromes), including —

Casement (& other) Projects for the Department of Defence – 1. The Master Plan 1981-1991 for Casement Aerodrome (including first setting out of ICAO Obstacle Limitation Surfaces on Casement’s airfield) written by the author of this report. [>] 2. The Master Plan 1984-1994 for Gormanston Military Aerodrome (including setting out of its Obstacle Limitation Surfaces, etc.) written by the author of this report. 3. The Design [>] Project Management and Supervision on Site in 1986 of the first replacement Irish military hangar with military workshops (Hangar no. 3 at Casement Aerodrome) by the author of this report. 4. The planning by this firm in 1995 ( jointly for the Department of Defence and Ryanair and Bovis Construction) of Dublin CitySouth combined

O’DWYER & JONES DESIGN PARTNERSHIP Military & Civil Airport at Baldonnel. [>] AVIATION PLANNING CONSULTANTS ©

Casement Projects by O’D&JDP for private firms and affected landowners – 5. The planning by this firm in 1997 of a civil business airport at Gormanston former military aerodrome for PARC Aviation. 6. Planning Appeal Response by this firm in 2000 for the FAI, in respect of proposed Eircom Park football stadium, including detailed analyses of Inner Horizontal Surface at Casement & international IHS practice, and analyses of Casement ‘obstacles’ incl. terrain & Saggart Church etc. [>] 7. Numerous Aeronautical Assessment Reports by this firm in respect of Casement Aerodrome for planning applications, planning appeals, and SHD applications by various landowners and developers, re sites in South Dublin at Baldonnel, Rathcoole, Saggart, Citywest, Tallaght, Cookstown, Lucan etc., and re sites in Fingal and Kildare located under Casement’s ‘obstacle limitation surfaces’. 8. Oral Hearing presentation to An Bord Pleanála by this firm, on 9th July 2019, on the issue of Casement Aerodrome’s Inner Horizontal Surface for SHD application ref. ABP-303803-19 at Cookstown. 9. Analyses by this firm in 2020-21 re Irish Air Corps and Coastguard Helicopter operations in Dublin, Wicklow, Galway (re HSE hospital helipads etc.) Aviation Report APPENDIX re SHD at Cooldown Commons, Citywest, 32

Casement Projects by O’D&JDP for Local Authorities –

10. Analysis of 1999 ‘Frederick Snow Policy Review for Casement Aerodrome’ carried out by this firm in 2003 for South Dublin County Council. 11. Aviation planning content by this firm re Casement & Weston aerodromes etc. for the 2004-2010 SDCC Development Plan. 12. Public Safety Zones assessment and proposals for Casement Aerodrome & Weston Airport by this firm in 2007 for South Dublin County Council. 13. Further Public Safety Zones proposals for Casement & Weston & other aerodromes by this firm in 2008 for Kildare County Council. [>] 14. Detailed Analysis of the 2009 ‘Mott MacDonald Review of Policy for Casement Aerodrome’ carried out by this firm for South Dublin County Council in 2010. 15. Reports by this firm in 2000-2010 on various aviation- related planning queries re Casement, for South Dublin & Kildare planning departments. 16. Aviation planning content by this firm re Casement etc. for the 2010-2016 SDCC Development Plan. 17. Aviation planning content by this firm re Casement etc. for the 2011-2017 Kildare County Development Plan. [>] 18. Aviation planning content by this firm re Casement etc. for the 2017-2023 Kildare County Development Plan. 19. Current Aviation planning content by this firm re Casement Aerodrome etc. for the 2022-2028 SDCC Development Plan Review. 20. Current Aviation planning content by this firm re Casement Aerodrome etc. for the 2023-2029 Kildare County Development Plan Review. Aviation Report APPENDIX re SHD at Cooldown Commons, Citywest, 33

APPENDIX ‘B’

page

Recent Correspondence (requests for a meeting) 34

Recent Aeronautical Information Services’ “NOTAM” re cranes in Citywest extending to 190m OD 38

Defence Act, 1954, section 36 extracts 39 Aviation Report APPENDIX re SHD at Cooldown Commons, Citywest, 34

From: O'Dwyer & Jones - Aviation Planning Sent: 29 April 2021 14:24 To: 'Gareth O'Flaherty (Defence)' Cc: 'Aidan McLernon' ; 'Brenda Butterly' ; 'Kosta Kapetangiannis | Reddy A+U' ; '[email protected]' ; 'Cliona Eogan' ; 'Saoirse Kavanagh' Subject: Proposed Cooldown Commons [Cairn] SHD application in Saggart-Citywest area of South Dublin

O'Dwyer & Jones Design Partnership Aviation Planning Consultants 28 Leeson Park, Dublin 6, D06E338, Ireland tel: 00- 353-1- 4981893, email: [email protected] or [email protected] web: www.aviationplanning.ie from: J. Declan O'Dwyer B.Arch MBA RIBA to: Gareth O’Flaherty, Property Management Branch, Department of Defence

Dear Gareth,

Thank you for your email of 21st April regarding the Cairn Homes development at Citywest, and I also refer to Jason Kearney’s emails of 26th and 27th April (on the same matter) sent to Aidan McLernon of Cairn Homes.

In Jason’s email of 27th April he requests fuller details “of a revised application.” Consequently I am forwarding this link to the online dropbox which contains details of the rest of the revised application which is scheduled for resubmission to ABP next week: https://www.dropbox.com/sh/z9cdkis47c04cn2/AACqns3VGwVJahtEWiV9sRFNa?dl=0

Following the objection (in February ’21) of the Department of Defence to the Cairn Homes residential development in the Saggart-Citywest area as originally submitted, this firm was consulted regarding ICAO considerations and requirements in that location; and, among other matters, we pointed out the ICAO principle of shielding, and advised that none of the buildings should be higher than the level of Saggart Church (measured at 156.150m OD/AMSL to its highest point) – a nearby permanent obstacle, located closer to Runway 04/22, and not marked or lit or featured in any way on Casement Aerodrome’s charts, past or present. A presentation document explaining this was sent to the Department and to the Air Corps in advance of a meeting held to discuss the technical aspects of this on 10th March ’21, but at which no input (or subsequent comment) was made by the Air Corps.

In all the circumstances, Cairn Homes decided to withdraw the Submission from An Bord Pleanála, and instructed that the project be redesigned to take account of the Department’s and Air Corps’s concerns. They also instructed that an aviation analysis Report be prepared in relation to the redesigned scheme vis-à-vis: ICAO requirements and guidance; the principle of shielding; and the peculiarities of the Inner Horizontal Surface in this particular sector. An Advance Copy of this Report has been provided to the Department of Defence and Air Corps, and to the Irish Aviation Authority, on 19th April ’21.

The one comment that has been received from the Department is as follows: “There appears to be little other change to the heights of the remaining blocks; therefore, at this juncture the original objections from the Department of Defence would appear to still stand.” In relation to this comment, we observe that – with regard to the application of aviation restrictions – the heights of the lower blocks are not relevant. The Air Corps will be aware that in any group of closely co-located objects (not under an Approach Surface, or Take-off Climb Surface, or Transitional Surface) it is only the height/altitude/elevation(OD/AMSL) of the most elevated object that is relevant. In this case, two storeys have been removed from the most elevated object, Block D4. [And in respect of the remaining blocks, it must also be taken into account that the elevations OD of these lower blocks are the same as the elevations OD of other permitted buildings in the same Saggart-Citywest area.]

In the circumstances, we think it may be helpful if another meeting could be arranged before resubmission of the redesigned project at the end of next week – and if possible using ‘Teams’ rather than ‘Skype’ (which caused some difficulty all around on the last occasion) – at which the technical and ICAO aspects affecting the proposed development might be discussed more fully with the relevant Air Corps personnel.

Kind regards, Declan J. Declan O’Dwyer B.Arch MBA RIBA O’Dwyer & Jones Design Partnership Aviation Planning Consultants, Dublin Aviation Report APPENDIX re SHD at Cooldown Commons, Citywest, 35

From: Aidan McLernon Sent: 14 May 2021 17:18 To: Gareth O'Flaherty (Defence) ; O'Dwyer & Jones - Aviation Planning Cc: 'Brenda Butterly' ; 'Kosta Kapetangiannis | Reddy A+U' ; [email protected]; Cliona Eogan ; 'Saoirse Kavanagh' Subject: RE: Proposed Cooldown Commons [Cairn] SHD application in Saggart-Citywest area of South Dublin Importance: High

Gareth,

I trust you are well.

As previously indicated, Cairn are keen to engage with your colleagues in the Air Corps and Dept of Defence before we lodge our revised planning application to discuss the advice of our Aviation Consultant that has informed our amended and lower design. Can you confirm if it is possible to arrange a meeting or a call in the next week or so or alternatively respond to Declan’s email below?

Thanks in advance,

Aidan McLernon Head of Planning

CAIRN PLC 7 Grand Canal, Grand Canal Street Lower, Dublin 2, T: +353 1 696 4600 M: +353 86 8263135 E: [email protected] www.cairnhomes.com ______From: Aidan McLernon Sent: 14 May 2021 17:21 To: Jason Kearney (Defence) ; Sarah Zacharia (Defence) ; [email protected] Cc: 'Brenda Butterly' ; 'Kosta Kapetangiannis | Reddy A+U' ; [email protected]; Cliona Eogan ; 'Saoirse Kavanagh' ; O'Dwyer & Jones - Aviation Planning ; Gareth O'Flaherty (Defence) Subject: RE: Proposed Cooldown Commons [Cairn] SHD application in Saggart-Citywest area of South Dublin

NB: Circulation email to Jason Kearney, Sarah Zacharia and Don Watchorn given that Gareth is currently on leave and to avoid unnecessary delays.

Aidan McLernon Head of Planning

CAIRN PLC 7 Grand Canal, Grand Canal Street Lower, Dublin 2, T: +353 1 696 4600 M: +353 86 8263135 E: [email protected] www.cairnhomes.com Aviation Report APPENDIX re SHD at Cooldown Commons, Citywest, 36

From: Gareth O'Flaherty (Defence) Sent: 21 April 2021 13:00 To: O'Dwyer & Jones - Aviation Planning Cc: Sarah Zacharia (Defence) ; Jason Kearney (Defence) ; Don Watchorn (Defence) Subject: RE: Advance Copy of Aviation Report re Cooldown Commons [Cairn] SHD attached

Declan,

In response to your query below in relation to a prospective revised planning application for Cooldown Commons SHD, I wish to advise at the outset that any determination in relation to a planning consent is solely a matter for the planning authorities and/or ABP, as appropriate. Therefore, the following observations are made on a non-prejudicial basis, and are not intended to be used to rely on for a prospective planning application, nor are these observations to be relied on in the event of any commercial transaction pertaining to such lands and they are not to be relied on in the event of any contract exchange pertaining to same.

Following consultations with the Air Corps, the Department of Defence notes that it appears that Block D4 (the tallest building) has been reduced from 161.25m to 155.7m AMSL, giving a reduction of approximately 2 floors/5.5m and that Block D4 will still penetrate the Inner Horizontal Surface by 24.1m. There appears to be little other change to the heights of the remaining blocks. Therefore, at this juncture, the original objections from the Department of Defence would appear to still stand.

Nothing in the above observations shall be taken as a binding response by the Minister for Defence in the event that a planning application is made. The Minister reserves the right to comment on an actual planning application as and when it is submitted in accordance with the provisions of the planning regulatory code.

Kind regards,

Gareth O’Flaherty

Higher Executive Officer – Property Management Branch

——

An Roinn Cosanta

Department of Defence

Bóthar an Stáisiúin, An Droichead Nua, Contae Chill Dara, W12 AD93.

Station Road, Newbridge, Co.Kildare, W12 AD93.

T +353 (0)45 45 2162 M +353 (0)87 437 4237

[email protected]

www.defence.ie

Aviation Report APPENDIX re SHD at Cooldown Commons, Citywest, 37

From: Gareth O'Flaherty (Defence) Sent: 20 May 2021 10:48 To: Aidan McLernon Cc: Jason Kearney (Defence) ; Sarah Zacharia (Defence) ; Don Watchorn (Defence) Subject: RE: Proposed Cooldown Commons [Cairn] SHD application in Saggart-Citywest area of South Dublin

Dear Mr. McLernon, Thank you for your email of 14 May 2021. I wish to advise at the outset that any determination in relation to a planning consent is solely a matter for the planning authorities and/or ABP, as appropriate. Therefore, the following observations are made on a non-prejudicial basis, and are not intended to be used to rely on for a prospective planning application, nor are these observations to be relied on in the event of any commercial transaction pertaining to such lands and they are not to be relied on in the event of any contract exchange pertaining to same. The Department of Defence has consulted with subject matter experts in the Air Corps and their view on the proposed changes indicated in the revised plans remains as previously set out by way of email to Mr. O’Dwyer on 21 April 2021, and the previous objections from the Department of Defence remain. Therefore, the Department of Defence will reserve its position on the proposed development until an application for permission is formally lodged with An Bord Pleanála. Nothing in the above observations shall be taken as a binding response by the Minister for Defence in the event that a planning application is made. The Minister reserves the right to comment on an actual planning application as and when it is submitted in accordance with the provisions of the planning regulatory code. Yours sincerely,

Gareth O’Flaherty

Higher Executive Officer – Property Management Branch

——

An Roinn Cosanta

Department of Defence

Bóthar an Stáisiúin, An Droichead Nua, Contae Chill Dara, W12 AD93.

Station Road, Newbridge, Co.Kildare, W12 AD93.

——

T +353 (0)45 45 2162

[email protected]

www.defence.ie

Aviation Report APPENDIX re SHD at Cooldown Commons, Citywest, 38

Daily Pre-Flight Bulletin

IRELAND AERONAUTICAL INFORMATION SERVICES

Pre-Flight Information Bulletin: VALIDITY (UTC): AREA 18 APR 2021 08:07 - 19 APR 2021 08:07 Id: EINN2104180024 Profile: AISOPS Service Type: FULL Date: 18 APR 2021 Time: 08:06 UTC Height Limits: Flight Rules: IFR/VFR Lower: 000 Upper: 999 Contents: Aerodromes, En-route, Warnings, including miscellaneous information Briefing Type: International,National,Military FIR: EISN EGPX EGGX Aerodromes: EGAA EGAB EGAC EGAD EGAE EGNT EGPF EGPH EGPK EGPN EIAB EIBN EIBR EICA EICK EICL EICN EIDL EIDW EIIM EIIR EIKK EIKN EIKY EIMH EIMN EINC EINN EIRT EISG EIWF EIWT EIME Legend: + NOTAM not older than 250 days * Different from original -DUE Beginning TO MAINTENANCE of the message FROM: 09 FEB 2021 10:25 TO: 09 MAY 2021 20:00 A0377/21

+ RWY END COORDINATES CHANGED TO: RWY 07 - 532115.04N 0062855.67W RWY 25 - 532101.47N 0062940.17W EISNDATA WHOSE -ACCURACY SHANNON HAS NOT BEEN QUALITY FIR CHECKED. REF EIWT AD 2.12 RUNWAY PHYSICAL CHARACTERISTICS. AERODROMESFROM: 09 FEB 2021 10:18 TO: 09 MAY 2021 20:00 A0376/21 + THR RWY 07/25 COORDINATES CHANGED TO: EIABRWY 07- 532101.47NABBEYSHRULE 0062940.17W RWY 25 532115.04N 0062855.67W DATANo informationWHOSE ACCURACY HASreceived NOT BEEN orQUALITY matching CHECKED. the query REF AIP EIWT AD 2.12 RUNWAY PHYSICAL CHARACTERISTICS. FROM: 09 FEB 2021 10:16 TO: 09 MAY 2021 20:00 A0375/21 EIBN - BANTRY + TWY C4 CLOSED FROM:No information 09 FEB 2021 10:13 received TO: 09 or MAY matching 2021 20:00 the query A0374/21

+ OBSTACLE ERECTED, CRANE ESTABLISHED AT THE INTEL FACTORY IN EIBRCOUNTY - KILDAREBIRR CENTRED ON 532241.18N 0063129.53W WITHIN A RADIUS OF 2NM. WITHINNo information THE FOLLOWING receivedLATERAL LIMITS: or matching the query 532241.49N 0063132.54W 532241.64N 0063127.35W EICA532239.45N - AIRPORT 0063127.16W CONNEMARA 532239.30N 0063132.36W ELEVATIONNo information 510FT/HEIGHT received 330FT or matching the query FROM: 03 MAR 2021 10:46 TO: 02 JUN 2021 20:00 N0017/21 EICK - CORK EIME - CASEMENT - HOLDING PROCEDURE CHANGED. RATE OF DESCENT IN HOLDING PATTERNS + OBSTACLESAMENDED TO: ERECTED. A STANDARD 2 TOWER RATE CRANES OF DESCENT OPERATING OF 1000FT AT POSITION PER MIN IN HOLDING 531709NPATTERNS 0062535W WILL BE 1.5NMUSED UNLESSSOUTH EASTOTHERWISE OF CASEMENT INSTRUCTED AERODROME. BY ATC. MAX PILOT HEIGHTS 78MMUST AGL. ADVISE RADIUS ATC OFIF OPERATIONUNABLE TO 40M.COMPLY OBSTACLES WITH THE LIGHTED. STANDARD RATE OF FROM:DESCENT. 15 APR 2021 13:34 TO: 15 JUL 2021 15:00 EST N0030/21 REF AIP EICK AD 2.22 SECTION 6 FROM: 02 OCT 2015 17:42 TO: PERM B1137/15 EN-ROUTE EICL - CLONBULLOGUE + please see NOTAM A0671/21 :- EIKY Page 1 of 29

+ please see NOTAM A0611/21 :- EIDW

+ COVID-19 DUE TO CONCERNS RELATING TO STRAINS OF THE COVID-19 VIRUS ALL Note: ThesePASSENGERS tower crane MUST COMPLETEcoordinates A COVID-19 are located PASSENGER at LOCATORCitywest FORM (directlyAND MUST beside QUARANTINE FOR A PERIOD OF 14 DAYS, UNLESS EXEMPT. the CooldownFOR PASSENGERS Commons ARRIVING INsite) IRELAND where FROM ground STATES THATlevel ARE is atNOT 112m OD; SPECIFIED AS HIGH RISK STATES, THE QUARANTINE PERIOD CAN BE thus “78MUNDERTAKEN AGL” AT THE[above ADDRESS ground NOTIFIED level] ON THE = 190mPLF. OD FOR PASSENGERS WHO HAVE BEEN IN A SPECIFIED HIGH RISK STATE (APPLICABLE TRAVELLERS, UNLESS EXEMPT) THEY MUST QUARANTINE IN THE DESIGNATED QUARANTINE FACILITY. AIR TRANSPORT OPERATORS ARE REQUESTED TO TAKE REASONABLE STEPS TO CHECK WHETHER OR NOT THE PERSON, WHERE HE OR SHE IS AN APPLICABLE TRAVELLER, HAS PRE-BOOOKED THE DESIGNATED FACILITY. ALL APPLICABLE TRAVELLERS MUST SHOW EVIDENCE OF A MANDATORY QUARANTINE FACILITY BOOKING PRIOR TO BOARDING THE AIRCRAFT. AIR TRANSPORT OPERATORS ARE REQUESTED TO ENSURE THAT ALL PASSENGERS (UNLESS EXEMPT) SHOW EVIDENCE OF A NEGATIVE/NOT DETECTED COVID-19 RT-PCR TEST CARRIED OUT WITHIN 72 HOURS OF ARRIVAL IN IRELAND, TO BOARD THE AIRCRAFT. IF THE AIR TRANSPORT OPERATOR IS NOT SATISFIED AS TO THE REQUIREMENT OF EVIDENCE OF AN APPLICABLE TRAVELLER BOOKING THE DESIGNATED QUARANTINE FACILITY OR EVIDENCE OF A NEGATIVE RT-PCR TEST THEY SHALL INFORM THE PASSENGER THAT THEY ARE NOT ALLOWED TO BOARD THE AIRCRAFT. EXEMPTIONS TO MANDATORY QUARANTINE REQUIREMENTS INCLUDE - HOLDERS OF A VALID ANNEX 3 CERTIFICATE. - DRIVERS OF A HEAVY GOODS VEHICLE, AIRLINE PILOTS, AIRCREW, MARITIME MASTER OR MARITIME CREW. - TRAVELLING TO THE STATE PURSUANT TO AN ARREST WARRANT, EXTRADITION PROCEEDINGS OR OTHER MANDATORY LEGAL OBLIGATION. - A MEMBER OF AN GARDA SIOCHANA OR DEFENCE FORCES (OR THEIR Page 7 of 29 Aviation Report APPENDIX re SHD at Cooldown Commons, Citywest, 39

Defence Act, 1954

Restrictions• on use of 36.—(1) Whenever the Minister is of opinion that the unrestricted use of a land in vicinity of particular area of land in the vicinity of an aerodrome vested in or occupied by him service aerodromes. would interfere with the navigation of aircraft flying to or from that aerodrome, he may by order (in this section referred to as a protected area order) do the following things—

(a) declare that particular area of land shall be a protected area for the

purposes of the order,

(b) declare that, within the protected area, it shall not be lawful for any person, save under and in accordance with a permit granted by the Minister, to erect or add to any building or to erect or place any post, pole or other

thing so that any part of the building, post, pole or thing (in this section referred to as an obstruction) will be at a greater height than that fixed by the order.

(2) The following provisions shall apply in respect of every protected area

order—

(5) (Thea) the Minister Minister may shall grant cause permits the order for to thebe published purposes in of the a protected Iris Oifigiúil area and order, and the followingin such provisionsnewspapers shallcirculating apply in in the relation area to to which any permitthe order so relates granted as— the Minister thinks proper, (a) the Minister may— (b) the order may divide the area to which it relates into such and so many sub(i) attach-areas asto theit such Minister conditions thinks fit as and, he thinks in that fit,case, may contain different provisions in relation to each of those sub-areas, (ii) revoke or amend it; (c) the order may exempt from its operation any specified obstructions or class

(b) theof permit obstructions, shall not operate as a release from any restrictions imposed under the Town and Regional Planning Acts, 1934 and 1939, or any (d) thereother shall enactment be attached and to applicablethe order a mapto the showing area to the which area tothe which order the relates. order relates and, where that area is divided into sub-areas, each of those (6) (a) Ifsub any-areas, person, having an estate or interest in land within an area to which

(e) thea map protected attached area to theorder order applies, may be proves omitted that from his the estate order or in interest any is publicationinjuriously thereofaffected in bypursuance the refusal of paragraph of the Minister (a) of this to subsection,grant him abut permit copiesor by anyof the conditions order with attached the map toattached a permit thereto granted shall to be him deposited by the in Minister, thehe shalloffice be of entitledthe Department to recover of Defence, compensation Parkgate, from Dublin, the Minister and shall for be the injury to that estate or interest, and any question whether compensation there kept open for public inspection at all reasonable times. is payable under this subsection or as to the amount of any (3) The Minister may by order under this subsection revoke or amend a protected compensation so payable shall, in default of agreement (which area order. agreement shall be subject to the consent of the Minister for Finance), (4) Everybe protected determined area orderby an and arbitrator every order appointed amending under a protected the Acquisition area order of Land shall be laid(Assessment before each House of Compensation) of the Oireachtas Act, as 1919, soon asand may under be after and itin is accordance made and, if a resolution annulling the order is passed by either such House within the with that Act. next subsequent twenty-one days on which such House has sat after the order is laid before(b) Where it, the a orderperson shall would, be annulled but for accordingly this paragraph, but without be entitled prejudice to compensation to the validity of anythingunder this previously subsection done and under also it. under any other enactment in respect of the same matter, he shall not be entitled to compensation in respect of

that matter under both this subsection and that other enactment, but may elect to receive compensation under either this subsection or that other enactment.

(7) If any person erects or adds to a building or erects or places any post, pole or

other thing in contravention of a protected area order—

(a) that person shall be guilty of an offence under this section and shall be liable on summary conviction to a fine not exceeding one hundred pounds, and

(b) the Minister may, whether or not any proceedings are taken in respect of the offence, cause such alterations to be made in the building, post, pole or thing in respect of which the contravention took place as may be necessary in his opinion to ensure compliance with the order, and the expenses incurred by the Minister in so doing shall be recoverable by the Minister from the person by whom the contravention is committed as a simple contract debt in any court of competent jurisdiction.