Arboricultural Impact Assessment
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Arboricultural Impact Assessment For proposed development at: Lavender Cottage, Dellows Lane, Ugley Green, Bishop's Stortford, CM22 6HN Prepared by: Date: Oisin Kelly, Arboricultural Consultant 21st January 2021 E: [email protected] T: 07570 977449 Project Ref: 693 Arborterra Ltd (England & Wales, Company No. 100653051) Registered Office: 12 Bures Road, Great Cornard, Suffolk, CO10 0EJ [email protected] www.arborterra.co.uk Arboricultural Impact Assessment Lavender Cottage, Dellows Lane, Ugley Green, Bishop's Stortford, CM22 6HN TABLE OF CONTENTS 1 INTRODUCTION ............................................................................................................................. 2 1.1 Instructions .......................................................................................................................... 2 1.2 The Site & Proposal ............................................................................................................. 2 1.3 The Tree Survey ................................................................................................................... 2 1.4 Photographs from the tree survey ...................................................................................... 3 2 Impact Assessment ....................................................................................................................... 5 2.1 Drawings .............................................................................................................................. 5 2.2 Trees to be removed ........................................................................................................... 5 2.3 Trees to be pruned .............................................................................................................. 5 2.4 Protection of trees to be retained ....................................................................................... 6 2.5 The relationship between the trees to be retained and the development ........................ 7 2.6 Summary of Impact Assessment ......................................................................................... 7 3 METHOD STATEMENTS ................................................................................................................. 8 3.1 Arboricultural Site Supervision ............................................................................................ 8 3.2 Enabling Tree Works ............................................................................................................ 8 3.3 Tree Protective Fencing & Ground Protection .................................................................... 8 3.4 Site Facilities ........................................................................................................................ 9 3.5 Demolition of wooden garage/shed within RPAs of T1 and T2 .......................................... 9 3.6 Reduced-dig surfaces .......................................................................................................... 9 3.7 Foundations within the RPA of oak T21 ............................................................................ 10 3.8 Services .............................................................................................................................. 10 4 CONCLUSIONS ............................................................................................................................. 11 LIST OF APPENDICES APPENDIX 1 Professional Profile for Oisin Kelly APPENDIX 2 Tree Survey Schedule APPENDIX 3 Tree Survey Plan (ref: XXX-01) APPENDIX 4 Tree Constraints Plan (ref: XXX-02) APPENDIX 5 Tree Protection Plan (ref: XXX-03) APPENDIX 6 Tree Protective Fencing APPENDIX 7 Ground Protection (bespoke) APPENDIX 8 Ground protection (proprietary) APPENDIX 9 Reduced dig construction Arborterra Ltd Page 1 of 11 [email protected] www.arborterra.co.uk Arboricultural Impact Assessment Lavender Cottage, Dellows Lane, Ugley Green, Bishop's Stortford, CM22 6HN 1 INTRODUCTION 1.1 Instructions 1.1.1 I am instructed by the applicant to prepare an Arboricultural Impact Assessment to form part of a planning application for proposed development at Lavender Cottage, Dellows Lane, Ugley Green, Bishop's Stortford, CM22 6HN. 1.1.2 I have been provided with the following information in preparation of this report: • Topographical survey of Survey Solutions (Drawing: 21171se-01) • Proposed Site Plan of Donald Purkiss Associates (Drawing: 2012/10B) 1.1.3 A professional profile outlining my qualifications and experience is contained at APPENDIX 1. 1.2 The Site & Proposal 1.2.1 The application site is situated on the eastern side of Dellows Lane at Ugley Green. The site comprises a detached dwelling, and outbuildings situated close to the southern boundary. There is a dilapidated wooden garage shed in the north-west corner of the site, opening onto Dellows Lane. There are trees and hedges situated around the boundaries and scattered across the site. Lavender Cottage is a Grade II Listed Building. The site is not within a Conservation Area and there are no Tree Preservation Orders applying to trees on or adjacent the site. 1.2.2 The proposal is to divide the plot in two and construct a new dwelling in the northern division of the site, with associated drive, detached garage and landscaping. 1.3 The Tree Survey 1.3.1 I visited the site on 05/01/2021. Unless otherwise stated all observations were made from ground level and tree dimensions were measured. The survey was to assess trees in relation to proposed development and should not be relied upon as a tree safety survey. 1.3.2 Data from the survey is contained in the Tree Survey Schedule at APPENDIX 2. The Tree Survey Plan at APPENDIX 3 shows the location of the trees in relation to the existing site layout and their quality, as categorised in accordance with “Trees in relation to design, demolition and construction – Recommendations” (BS:5837:2012). The categorisation is intended to assist in determining which trees should be removed or retained in the event of development. BS5837 is a standard reference document used by local planning authorities and the Planning Inspectorate when considering trees in the development context. The categories are summarised as follows: • Category U: trees not worthy of retention because of their condition • Category A: trees of high quality • Category B: trees of moderate quality • Category C: trees of low quality Arborterra Ltd Page 2 of 11 [email protected] www.arborterra.co.uk Arboricultural Impact Assessment Lavender Cottage, Dellows Lane, Ugley Green, Bishop's Stortford, CM22 6HN 1.3.3 The numbers of trees, groups and hedges surveyed by category are detailed in Table 1 below. Trees Groups Hedges Shrubs TOTALS Category U 0 0 0 0 0 Category A 2 0 0 0 2 Category B 22 1 0 0 23 Category C 24 1 4 3 32 TOTALS 48 2 4 3 57 1.4 Photographs from the tree survey Photo 1. Sycamore T1 and Ash T2 (to be retained) and the wooden garage/shed beneath (to be demolished). The Photo 2. The stems of ash T2 are in direct contact with the drive will cross the far corner of the garage, as viewed in shed. the photograph. T1 T2 Photo 4. View looking towards T4 and G5 on northern Photo 3. The base of ash T2 is in close proximity to the boundary. The drive will pass across the front of group 5, shed. requiring cutting back of lower branches (circled red) T4 G5 T2 Photo 5. View of stems in G5. A larger stem (500mm Photo 6. Small diameter branches of G5 extend 4.5m south diameter) is situated on the boundary (arrowed red). The at low level. These can be cut back or removed at source other trees in the group have smaller stem diameters (150 without causing significant harm to the trees. to 250mm). Arborterra Ltd Page 3 of 11 [email protected] www.arborterra.co.uk Arboricultural Impact Assessment Lavender Cottage, Dellows Lane, Ugley Green, Bishop's Stortford, CM22 6HN Photo 7. Western red cedar G5 and ash T6 Photo 8. Trees on northern boundary (as labelled). T6 T13 T12 G5 S8 T10 T11 T54 Photo 9. Trees on northern boundary (as labelled). Photo 10. Oaks T21 and T22. T16 T21 T22 T13 T20 T19 T17 T18 T15 T17 T18 Photo 11. View of oak T21, and approximate location of Photo 12. View along eastern boundary, trees as labelled, garage footprint (as pegged out on site). and approximate garage footprint (as pegged out on site). T21 T25 T23 Birches T27 to T31 T26 T25 T32 S24 Photo 13. View along eastern boundary, trees as labelled. H40 T35 T36 T32 T33 T34 T37 T38 T39 Arborterra Ltd Page 4 of 11 [email protected] www.arborterra.co.uk Arboricultural Impact Assessment Lavender Cottage, Dellows Lane, Ugley Green, Bishop's Stortford, CM22 6HN 2 Impact Assessment 2.1 Drawings 2.1.1 The Tree Constraints Plan at APPENDIX 4 shows the trees in relation to the proposed site layout, along with the following information: • Trees proposed for removal or retention • Root Protection Areas (RPAs) - a layout design tool indicating the minimum area around a tree deemed to contain sufficient roots and rooting volume to maintain the tree’s viability, and where the protection of the roots and soil structure is treated as a priority; • The approximate daily shadow trace through the main part of the day, based on current height, and where a significant growth potential exists, the potential mature height; and, • Target notes in relation to the development proposals and arboricultural constraints. 2.2 Trees to be removed 2.2.1 The trees to be removed as part of the development are listed by BS5837 ‘quality