15 Tretawn Park London NW7 4PS
Approved on 20 December 2024
Council decision: LawfulDelegated (officer decision)
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
Proposal
Erection of a rear outbuilding with 1no. rooflight
- Received
- 31 October 2024
- Decision level
- Delegated (officer decision)
- Council
- London Borough of Barnet
- Ward
- Mill Hill
- Agent
- YOOP Architects
- ReceivedReceived31 Oct
- ValidatedValidated31 Oct
- Consult.Consultation
- TargetTarget Date26 Dec
- DecidedDecided20 Dec
Decided in 50 days (council typically 56)
About this application
This is an outline application for an outbuilding at 15 Tretawn Park London NW7 4PS. Barnet has handled 2,167 applications of this type. This one was decided in 50 days, 6 days quicker than Barnet's typical decision time. There have been 2 other applications at this address. In the past year there have been 132 applications across Mill Hill. We hold 1,044 applications in total for the NW7 postcode area.
75% of outline applications at London Borough of Barnet were approved. Across all application types, the council typically decides in about 8 weeks (median).
Based on decided applications received in the last 3 years.See what's approved near your address
Application details
- Postcode
- NW7 4PS
- Application type
- Proposed Lawful Development Certificate
- Scale / size
- Small
Planning application dates
- Date validated
- 31 October 2024
- Target decision date
- 26 December 2024
Applicant and agent
- Agent
- YOOP Architects
- Architect profile
- YOOP LIMITED
- Agent address
- Office 128, 28A Church Road Stanmore HA7 4AW
Planning decision
- Statutory period
- 56 days
Site constraints
Designations that overlap or adjoin the site outline.
- Article 4 direction: Article 4 Small Houses in Multiple Occupation (HMO) Area 1
- Tree Preservation Order: Ref TRE/HE/44Part of the site · +1 more
- Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (22)
flood storage areas, conservation areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
Planning history at this site
4 other applications at this property, newest first.
- 202620 Jul
1 x Yew (applicants ref. T1) - Fell. Standing in Group G2 of Tree Preservation Order. (Exempt 5 day notice)
Trees: ExemptWorks to TPO treesTPP/0423/26 - 202510 Mar
Changes to front fenestration. Conversion of garage into habitable room, insertion of window to replace…
ApprovedHouseholder25/0747/HSE - 202527 Feb
First floor rear balcony
ApprovedHouseholder25/0827/HSE - 20242 Aug
Single storey rear extension with 2no. lantern rooflights, new patio area, access steps with associated…
ApprovedHouseholder24/3021/HSE
Source: Barnet
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Around this site
Nearby applications
- 15 Tretawn Park London NW7 4PS24/3021/HSE · FullApproved0.0 mi
- 1 Tretawn Park London NW7 4PS25/3952/HSE · FullWithdrawn0.1 mi
- 1 Tretawn Park London NW7 4PS25/5166/HSE · FullApproved0.1 mi
- 60 Uphill Road London NW7 4PUTPP/0290/24 · TreesApproved0.1 mi
- 60 Lawrence Avenue London NW7 4NN26/0743/192 · OutlineApproved0.1 mi
For applicants and trades
Contractors near this project
Find contractors for new builds near this site- Atlas South Technical Service LimitedVerifiedLondonProperty MaintenanceHandyman8.3 mi
- Avent Roofing ServicesVerifiedWestminsterRoofing9.1 mi
- Orient Construction Consultancy LimitedVerifiedLondon9.2 mi
- AJG ElectricalElectrician0.1 mi
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