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Planning Application: 6/2025/2248/FULL




FULL PERMISSION
Under Consideration
Mr Raymond Lee
r.lee@welhat.gov.uk
37 Mardley Avenue Welwyn AL6 0TU
Erection of a single chalet dwelling
525121
217985

  • Welwyn East

  • Councillor Julie Cragg
  • Councillor Claire Hunt
  • Councillor Durk Reyner
Welwyn
100080989440
23/10/2025
14/11/2025
10/12/2025
10/12/2025
Mr George Dobson
Mr Graeme Carr
Office 3 Broadmeads Pumping Station Hertford Road Ware SG12 9LH
C/O G2
Description Distance
Parish 0.00
Parish 146.63
Hertfordshire Ecological Network 0.00
Great Crested Newts DLL Risk Zones 0.00
NATS Safeguarding Area Wind Turbine Development 0.00
LLA Aerodrome Safeguarding Area 0.00
London Heathrow Safeguarding Area 0.00
Delegated

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File Description Date Uploaded
Application Form - Without Personal Information
File: ApplicationFormRedacted.pdf (0 kb) Description: Applicationformredacted Created Date: 23/10/2025
Landscape Plans
File: 1681_G2_P011.B - PROPOSED SITE ENTRANCE LANDSCAPING PLAN.pdf (0 kb) Description: Proposed Site Entrance Landscaping Plan Created Date: 13/05/2026
Location Plan
File: 1681_G2_P001.A - SITE LOCATION AND BLOCK PLAN.pdf (0 kb) Description: Site Location And Block Plan Created Date: 13/05/2026
Plans
File: 1681_G2_P013 - SITE SECTION.pdf (0 kb) Description: Site Section Created Date: 07/05/2026
File: 1681_G2_P008.B - EXISTING AND PROPOSED SITE PLANS.pdf (0 kb) Description: Existing And Proposed Site Plans Created Date: 13/05/2026
File: 1681_G2_P002.A - PROPOSED GROUND AND FIRST FLOOR PLANS.pdf (0 kb) Description: Proposed Ground And First Floor Plans Created Date: 13/05/2026
File: 1681_G2_P003.A - PROPOSED ROOF PLAN.pdf (0 kb) Description: Proposed Roof Plan Created Date: 13/05/2026
File: 1681_G2_P004.A - PROPOSED ELEVATIONS.pdf (0 kb) Description: Proposed Elevations Created Date: 13/05/2026
File: 1681_G2_P005.A - PROPOSED 3D MODELS.pdf (0 kb) Description: Proposed 3d Models Created Date: 13/05/2026
File: 1681_G2_P006.A - STREET SCENES.pdf (0 kb) Description: Street Scenes Created Date: 13/05/2026
File: 1681_G2_P007.A - SITE SECTIONS.pdf (0 kb) Description: Site Sections Created Date: 13/05/2026
File: 1681_G2_P009.A - REFUSE AND BIKE STORES.pdf (0 kb) Description: Refuse And Bike Stores Created Date: 13/05/2026
File: 1681_G2_P010.A - VISIBILITY SPLAYS.pdf (0 kb) Description: Visibility splays Created Date: 13/05/2026
File: 1681_G2_P012.A - SUNLIGHT ANALYSIS PLAN.pdf (0 kb) Description: Sunlight Analysis Plan Created Date: 13/05/2026
Environmental Impact Assessment
File: Appendix A - Baseline Habitat Condition Assessment Sheet 251008.xlsx (0 kb) Description: Appendix A - Baseline Habitat Condition Assessment Sheet Created Date: 23/10/2025
Planning Statement
File: Planning Statement - Mardley Avenue.pdf (0 kb) Description: Planning Statement Created Date: 23/10/2025
Consultee Response
File: Comments.pdf (0 kb) Description: Comment - WHBC - Client Services Created Date: 18/11/2025
File: Comments(3).pdf (0 kb) Description: Comment -WHBC Landscapes Created Date: 24/11/2025
File: 6.2025.2248.FULL - 37 Mardley Avenue Welwyn AL6 0TU.pdf (0 kb) Description: Comment - WHBC Landscapes attachment Created Date: 24/11/2025
File: Response_6-2025-2248-FULL.pdf (0 kb) Description: Conditional response - HCC Highways Created Date: 24/11/2025
File: Comments(6).pdf (0 kb) Description: Conditional - WHBC - Public Health and Protection Created Date: 28/11/2025
File: WK154945 - 37 Mardley Ave.pdf (0 kb) Description: Conditional - WHBC - Public Health and ProtectionWK154945 - 37 Mardley Ave.pdf Created Date: 28/11/2025
File: Comments(13).pdf (0 kb) Description: Objection - Welwyn Parish Council Created Date: 03/12/2025
File: 6-2025-2248-FULL Rsp 1.pdf (0 kb) Description: Conditional - Herts Ecology Created Date: 13/05/2026
Neighbour Representation - Without Personal Information
File: Comments-Redacted.pdf (0 kb) Description: Objection - 7 Mardley Heights Welwyn AL6 0TX -Redacted Created Date: 23/11/2025
File: Objections to 37 Mardley Avenue Planning Application 7MH_Redacted.pdf (0 kb) Description: Objection - 7 Mardley Heights Welwyn AL6 0TX Attachment - redacted Created Date: 26/11/2025
File: Comments-Redacted(1).pdf (0 kb) Description: Objection - 9 Mardley Heights Welwyn AL6 0TX -Redacted Created Date: 24/11/2025
File: Comments-Redacted(2).pdf (0 kb) Description: Objection - 1 Mardley Heights Welwyn AL6 0TX -Redacted Created Date: 24/11/2025
File: Objection_Mardley_Heights_Redacted.pdf (0 kb) Description: Objection - 1 Mardley Heights Welwyn AL6 0TX Attachment - redacted Created Date: 26/11/2025
File: Comments-Redacted(3).pdf (0 kb) Description: Objection - 20 Mardley Heights Welwyn AL6 0SX -Redacted Created Date: 24/11/2025
File: Comments-Redacted(4).pdf (0 kb) Description: Objection - 10 Mardley Heights Welwyn AL6 0TX -Redacted Created Date: 30/11/2025
File: 37 OBJECTION_Redacted.pdf (0 kb) Description: Objection - 10 Mardley Heights Welwyn AL6 0TX -Attachment-Redacted Created Date: 01/12/2025
File: Comments-Redacted(5).pdf (0 kb) Description: Objection - 11 Mardley Heights Welwyn AL6 0TX -Redacted Created Date: 30/11/2025
File: Planning Objection 37 Mardley Avenue 2025_Redacted.pdf (0 kb) Description: Objection - 11 Mardley Heights Welwyn AL6 0TX - Attachment Created Date: 01/12/2025
File: Comments-Redacted(6).pdf (0 kb) Description: Objection - 6 Mardley Heights Welwyn AL6 0TX -Redacted Created Date: 01/12/2025
File: 6_2025_2248_FULL Planning Application - Objection_Redacted.pdf (0 kb) Description: Objection - 6 Mardley Heights Welwyn AL6 0TX Attachment Created Date: 01/12/2025
File: Comments-Redacted(7).pdf (0 kb) Description: Objection - 4 Mardley Heights Welwyn AL6 0TX -Redacted Created Date: 01/12/2025
File: mardley heights objection.pdf (0 kb) Description: Objection - 4 Mardley Heights Welwyn AL6 0TX Attachment - mardley heights objection.pdf Created Date: 01/12/2025
File: Comments-Redacted(8).pdf (0 kb) Description: Objection - 2 Mardley Heights Welwyn AL6 0TX -Redacted Created Date: 01/12/2025
File: IMG_0152.pdf (0 kb) Description: Objection - 2 Mardley Heights Welwyn AL6 0TX Attachment - IMG_0152.jpeg Created Date: 01/12/2025
File: Comments-Redacted(9).pdf (0 kb) Description: Objection - Oak House 3 Mardley Heights Welwyn AL6 0TX -Redacted Created Date: 02/12/2025
File: K&GD points of objection to planning.docx_Redacted.pdf (0 kb) Description: Objection - Oak House 3 Mardley Heights Welwyn AL6 0TX attachment Objections to proposed development on 37 Mardley Avenue Created Date: 03/12/2025
File: Comments by 8MH regarding proposed development at 37 MA_Redacted.pdf (0 kb) Description: Objection - 8 Mardley Heights Welwyn AL6 0TX - Comments - redacted Created Date: 05/12/2025
File: Comments-Redacted(10).pdf (0 kb) Description: Objection - 8 Mardley Heights Welwyn AL6 0TX -Redacted Created Date: 03/12/2025
File: PLANNING OBJECTION LETTER GH.pdf (0 kb) Description: Objection- 13 Mardley Heights- PLANNING OBJECTION LETTER GH.pdf Created Date: 04/12/2025
File: Comments-Redacted(11).pdf (0 kb) Description: Objection- 13 Mardley Heights Welwyn AL6 0TX -Redacted Created Date: 04/12/2025
Biodiversity Survey & Report
File: Biodiversity Net Gain Metric - 37 Mardley Avenue Oaklands Welwyn 251021.xlsx (0 kb) Description: Biodiversity Net Gain Metric Created Date: 23/10/2025
File: BNGA 37 Mardley Avenue Oaklands Welwyn 251021.pdf (0 kb) Description: Biodiversity Net Gains Assessment Created Date: 23/10/2025
Report
File: PEA 37 Mardley Avenue Oaklands Welwyn 251008.pdf (0 kb) Description: Preliminary Ecological Appraisal Created Date: 23/10/2025
Site Notice
File: Site Notice_620252248FULL.pdf (0 kb) Description: Site Notice Created Date: 19/11/2025
Superseded Plans
File: 1681_G2_P001 - SITE LOCATION AND BLOCK PLAN.pdf (0 kb) Description: Site Location And Block Plan Created Date: 23/10/2025
File: 1681_G2_P002 - PROPOSED GROUND AND FIRST FLOOR PLANS.pdf (0 kb) Description: Proposed Ground And First Floor Plans Created Date: 23/10/2025
File: 1681_G2_P003 - PROPOSED ROOF PLAN.pdf (0 kb) Description: Proposed Roof Plan Created Date: 23/10/2025
File: 1681_G2_P004 - PROPOSED ELEVATIONS.pdf (0 kb) Description: Proposed Elevations Created Date: 23/10/2025
File: 1681_G2_P005 - PROPOSED 3D MODELS.pdf (0 kb) Description: Proposed 3d Models Created Date: 23/10/2025
File: 1681_G2_P006 - STREET SCENES.pdf (0 kb) Description: Street Scenes Created Date: 23/10/2025
File: 1681_G2_P007 - SITE SECTIONS.pdf (0 kb) Description: Site Sections Created Date: 23/10/2025
File: 1681_G2_P008 - EXISTING AND PROPOSED SITE PLANS.pdf (0 kb) Description: Existing And Proposed Site Plans Created Date: 23/10/2025
File: 1681_G2_P009 - REFUSE AND BIKE STORES.pdf (0 kb) Description: Refuse And Bike Stores Created Date: 23/10/2025
File: 1681_G2_P012 - SUNLIGHT ANALYSIS PLAN.pdf (0 kb) Description: Sunlight Analysis Plan Created Date: 23/10/2025
File: 1681_G2_P011 - PROPOSED SITE ENTRANCE LANDSCAPING PLAN.pdf (0 kb) Description: Proposed Site Entrance Landscaping Plan Created Date: 23/10/2025
File: 1681_G2_P006.B - STREET SCENES.pdf (0 kb) Description: Street Scenes Created Date: 13/05/2026
Sustainablity Assessment
File: Sustainability Statement.pdf (0 kb) Description: Sustainability Statement Created Date: 23/10/2025
Topographical
File: CLS25104001.pdf (0 kb) Description: Topographical Survey Created Date: 23/10/2025
Tree Survey
File: AD07325 37 Mardley Avenue Oaklands Welwyn Herts Tree Report1a.pdf (0 kb) Description: Arboricultural Report Created Date: 23/10/2025
Organisation Name Sent Reply Due Reply Received
Welwyn Parish Council Arooj Afzal 14/11/2025 05/12/2025 03/12/2025
Welwyn Hatfield Borough Council Councillor Julie Cragg 14/11/2025 05/12/2025
Welwyn Hatfield Borough Council Councillor Roger Trigg 14/11/2025 05/12/2025
Welwyn Hatfield Borough Council Councillor Terry Mitchinson 14/11/2025 05/12/2025
Hertfordshire County Council Hertfordshire Transport Programmes & Strategy 14/11/2025 05/12/2025 21/11/2025
Welwyn Hatfield Borough Council Landscapes/Tree Officer 14/11/2025 05/12/2025 24/11/2025
WHBC - Client Services Lorraine Davis 14/11/2025 05/12/2025 18/11/2025
Hertfordshire Ecology Martin Hicks 14/11/2025 05/12/2025 12/05/2026
WHBC - Public Health and Protection Public Health and Protection 14/11/2025 05/12/2025 28/11/2025
Address Date Sent Expiry Date Date Reconsulted Reconsult Expiry Date
35 Mardley Avenue Welwyn AL6 0TU 14/11/2025 05/12/2025
39 Mardley Avenue Welwyn AL6 0TU 14/11/2025 05/12/2025
1 Mardley Heights Welwyn AL6 0TX
2 Mardley Heights Welwyn AL6 0TX
4 Mardley Heights Welwyn AL6 0TX
6 Mardley Heights Welwyn AL6 0TX 14/11/2025 05/12/2025
7 Mardley Heights Welwyn AL6 0TX 14/11/2025 05/12/2025
8 Mardley Heights Welwyn AL6 0TX
9 Mardley Heights Welwyn AL6 0TX
10 Mardley Heights Welwyn AL6 0TX
11 Mardley Heights Welwyn AL6 0TX
13 Mardley Heights Welwyn AL6 0TX
20 Mardley Heights Welwyn AL6 0SX 14/11/2025 05/12/2025
Oak House 3 Mardley Heights Welwyn AL6 0TX
Application Number Proposal Decision Distance
6/2025/2420/TPO Hornbeam tree to reduce back to previous pruning points (repollard). 2 x Silver birches to crown reduce by 30%. Covered by TPO 24 A3 and TPO 641 (2017) Granted 0
6/2024/1895/TPO 2 x Silver birches branches thinned out. Fell 1 x Hornbeam. (TPO 641 G5 (2017)) Refused 0
6/2023/2047/TPO To dig up self seeded Castinae and relocate it either elsewhere on land or to the local woods TPO 641 (2017) Withdrawn
6/2022/0862/TPO Reduce height of Holly and Elder tree by 20-30%. Removal of 4 overgrown conifers affecting building works to neighbours. Pruning of all trees and hedges on property in rear garden and front roadside, long overdue. Withdrawn
6/2021/3540/HOUSE Erection of single storey side extension following demolition of existing conservatory Granted 0
641 (2017) for the continued amenity of the area following a review of the landscape. 0
N6/2013/2292/FP Conversion of garage to residential annex with increase to ridge height and insertion of fenestration Refused 0
N6/2012/0640/FP Erection of conservatory Granted 0
N6/2006/1497/OP ERECTION OF TWO BED BUNGALOW AND ASSOCIATED WORKS Refused
N6/2002/1030/FP ERECTION OF A DETACHED FOUR BEDROOM DWELLING Appeal Dismissed
N6/2002/1030/FP ERECTION OF A DETACHED FOUR BEDROOM DWELLING Refused
N6/1999/0296/FP Proposed extensions to front and rear and new roof, incorporating dormer windows to form a chalet bungalow Granted 0
N6/1992/0676/FP Single storey rear extension, dormer windows and conservatory and new chimney Granted 0
N6/1992/0515/FP Pitched roof to existing flat roof extensions Granted
N6/1991/0256/FP Two storey rear extension, new chimney to existing roof and dormer window to front elevation Granted 0
N6/1985/0713/FP Two chalet bungalows and double garages Granted 0
N6/1979/0304/ Site for dwelling house and garage Refused
24 (1976) For the continued amenity of the land. 0

There are no NMAs associated with this application