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186 Chamberlayne Road, London, NW10 3JU

25/3576HouseholderRefused

Refused on 2 April 2026

Delegated (officer decision)1 reason 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

Demolition of rear larder and proposed single storey side infill extension, rear outrigger extension and replacement of rear dormer window with Juliet balcony to the dwellinghouse.

Received
22 December 2025
Decision level
Delegated (officer decision)
Ward
Brondesbury Park
  1. Received22 Dec
  2. Validated6 Feb
  3. Consult.16 Mar
  4. Target
  5. Decided2 Apr

Decided in 55 days (council typically 56)

About this application

This is a full planning application for demolition at 186 Chamberlayne Road, London, NW10 3JU. Brent has handled 4,396 applications of this type. This one was decided in 101 days, 6 weeks longer than Brent's typical decision time. The site is in a conservation area. There are no previous applications recorded at this address. In the past year there have been 170 applications across Brondesbury Park. We hold 4,511 applications in total for the NW10 postcode area.

77% of full applications at London Borough of Brent 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 roof extensions due to the size and siting would appear out of place being overly prominent within the roof slope andsurrounding street scene. This would fail to preserve or enhance the character or appearance of the dwelling and the Kensal Rise Conservation Area. The obtrusive appearance of the proposal would be inappropriate and harmful to the distinctive residential character and contrary to the Queens Park Conservation Area Design Guide (2015), policies DMP1 & BHC1 of Brent's Local Plan (2019-41), policy HC1 of the London Plan (2021) and the NPPF (2024).

From the council's decision notice.

Application details

Postcode
NW10 3JU
Application type
Householder
Scale / size
Small

Planning application dates

Date validated
6 February 2026
Consultation expiry
16 March 2026
Neighbour consultation end
16 March 2026
Last date for comments
3 April 2026

Appeal history

6011634
Allowed
Type: Householder (HAS)Procedure: Written RepresentationsDecision: 14 August 2026Dev Type: Householder developmentsReason: refused

Additional information

Planning Portal ID
PP-14506169
Comments
0
Documents
10
Constraints
1

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Kensal Rise
  • Article 4 direction: Article 4 for HMOs+1 more
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (22)

flood storage 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.

Source: Brent

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

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