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57 Westbury Road London N12 7PB

26/0114/192Proposed Lawful Development CertificateApproved
Outline / PiP

Approved on 19 January 2026

Council decision: LawfulDelegated (officer decision)

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

Roof extension involving side/rear wraparound dormer window and 1no. front, 1no. side facing rooflight

Received
13 January 2026
Decision level
Delegated (officer decision)
Ward
West Finchley
  1. Received13 Jan
  2. Validated13 Jan
  3. Consult.
  4. Target10 Mar
  5. Decided19 Jan

Decided in 6 days (council typically 56)

About this application

This is an outline application for a dormer extension at 57 Westbury Road London N12 7PB. Barnet has handled 2,167 applications of this type. This one was decided in 6 days, 7 weeks quicker than Barnet's typical decision time. There have been 3 other applications at this address. In the past year there have been 103 applications across West Finchley. We hold 795 applications in total for the N12 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
N12 7PB
Application type
Proposed Lawful Development Certificate
Scale / size
Small

Planning application dates

Date validated
13 January 2026
Target decision date
10 March 2026

Applicant and agent

Agent address
86 Victoria Road London NW4 2RT

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-14618765
Comments
0
Documents
5

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Flood zone 3: High probability (rivers and sea)Part of the site
  • Article 4 direction: Article 4 Small Houses in Multiple Occupation (HMO) Area 1
  • Tree Preservation Order: Ref TRE/FI/4Part of the site
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.

Source: Barnet

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

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