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126, West Heath Road, Hampstead, NW3 7TU

25/2567/HSEHouseholder planning permissionApproved
Householder

Approved on 22 August 2025

Approximate site (title boundary)
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

Part single, part two storey rear extension. Associated alterations and extension to roof including rear hip to gable with window at second floor level. 2no. new rear dormer windows. Addition of canopies above 2no. side entrance doors. Alterations to fenestration. (Amendments to previous approvals 24/3586/HSE and 25/1154/HSE currently under construction)

Submitted
30 June 2025
  1. Received30 Jun
  2. Validated
  3. Consult.
  4. Target
  5. Decided22 Aug

Decided in 53 days (council typically 56)

About this application

This is a planning application for a two storey rear extension at 126, West Heath Road, Hampstead, NW3 7TU. Barnet has handled 1,187 applications of this type. This one was decided in 53 days, 3 days quicker than Barnet's typical decision time. There have been 6 other applications at this address. In the past year there have been 164 applications across CH22. We hold 2,608 applications in total for the NW3 postcode area.

82% of householder planning permission 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
NW3 7TU
Application type
Householder planning permission

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Article 4 direction: Article 4 Small Houses in Multiple Occupation (HMO) Area 1
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (23)

flood storage areas, conservation areas, listed buildings, tree preservation orders, 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.

Associated applications

  1. 2025
    30 Jun

    Part single, part two storey rear extension. Associated alterations and extension to roof including rear hip…

    This applicationApprovedHouseholder25/2567/HSE
  2. 2025
    20 Mar

    First floor rear extension. Alterations to side and rear elevations including, changes to fenestration, new…

    ApprovedHouseholderPart of25/1154/HSE
  3. 2025
    18 Mar

    Additional 2no. dormer windows to front elevation

    ApprovedHouseholderFiled alongside25/1155/HSE

Planning history at this site

6 other applications at this property, newest first.

  1. 2026
    12 May

    Conversion of the existing dwelling into 2no. self-contained dwellings including roof extension with rear…

    ApprovedFull planning permission26/1635/FUL
  2. 2026
    23 Apr

    Conversion of the existing dwelling into 2no. self-contained dwellings including roof extension with rear…

    ApprovedFull planning permission26/1383/FUL
  3. 2026
    5 Feb

    Submission of details of condition 9 (Tree Protection) pursuant to planning permission 25/2567/HSE

    ApprovedDischarge of conditions26/0441/CON
  4. 2025
    11 Dec

    Conversion of the existing dwelling into 2no. self-contained dwellings including roof extension with rear…

    RefusedFull planning permission25/4447/FUL
  5. 2024
    29 May

    Single storey rear extension with a proposed depth of 6m, maximum height of 3m and eaves height of 3m

    RefusedHouseholder24/2103/PNH
  6. 2024
    20 May

    Two storey rear extension with crown roof

    ApprovedProposed Lawful Development Certificate24/1991/192

Source: Barnet

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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