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552 - 554 Finchley Road, London, NW11 8DD

26/1180/FULFull planning permissionRefused
Full

Refused on 9 June 2026

3 reasons for refusal

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 side and rear extension with rear balcony at first floor level; Roof extension including front, side and rear dormer windows and rooflights; Creation of an on-site parking space following the demolition of the two-storey front outrigger; Conversion into 4no. self-contained residential units; Construction of a single storey outbuilding (gym) in the rear garden; Associated external amenity space, cycle storage and refuse and recycling facilities to No. 554. Single storey front and rear extensions to No. 552 and associated garage conversion.

Submitted
30 March 2026
  1. Received30 Mar
  2. Validated
  3. Consult.
  4. Target
  5. Decided9 Jun

Decided in 71 days (council typically 56)

About this application

This is a planning application for demolition at 552 - 554 Finchley Road London NW11 8DD. Barnet has handled 768 applications of this type. This one was decided in 71 days, 2 weeks longer than Barnet's typical decision time. There has been 1 other application at this address. In the past year there have been 164 applications across CH22. We hold 1,887 applications in total for the NW11 postcode area.

62% of full 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

Why it was refused

  1. The proposed single storey rear extension and associated rear patio at No.554, by reason of its scale, siting, and appearance, is considered a disproportionate, unsympathetic addition to the host dwelling. The rear extension by itself and cumulatively together with the other proposed developments at the dwelling would create an overdevelopment of the host site and detract from the character of the area contrary to policy. The proposed single storey rear extension and associated rear patio at No.552, on account of its scale, design and siting is considered a disproportionate addition, out of character with the host property and surrounding area. The proposal is contrary to the NPPF, Policies D3 and HC1 of the London Plan (2021); Policies CDH01, CDH05, and CDH07 of the Barnet Local Plan (2025).
  2. The proposed single storey rear extension on account of its extensive depth is considered to detrimentally impact the amenity enjoyed by occupiers of No.556. The proposal is therefore considered to be detrimental to the residential amenities of the neighbouring occupiers, contrary to Policies D3 and D6 of the London Plan (2021), Policies CHD01 and CDH05 of the LB Barnet Local Plan (2025) and the LB Barnet Residential Design Guidance SPD (2016).
  3. Insufficient Biodiversity Net Gain information has been provided in support of the application. No statutory metric was submitted in support of the application. In the absence of this it is considered that the proposed development could cause potential undue harm to wildlife and protected species contrary to Policy G6 of the London Plan (2021) and Policies CDH01 and ECC07 of the LB Barnet Local Plan (2025)

From the council's decision notice.

Application details

Postcode
NW11 8DD
Application type
Full 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. 2026
    30 Mar

    Part single, part two storey side and rear extension with rear balcony at first floor level; Roof extension…

    This applicationRefusedFull planning permission26/1180/FUL
  2. 2026
    30 Mar

    Part single, part two storey side and rear extension with rear balcony at first floor level; Roof extension…

    ApprovedFull planning permissionFiled alongside26/1181/FUL

Source: Barnet

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

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