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80 Castleton Avenue, Wembley, HA9 7QG

26/0150Full Planning PermissionRefused
Full

Refused on 19 March 2026

Council decision: Permission RefusedDelegated (officer decision)4 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

Proposed conversion of single dwellinghouse into 4x self-contained flats. Demolition of garage and erection of two storey side extension, rear and side dormer extension, replacing side elevations window and door with a window, 5x front rooflights and 2x side rooflights. 2x parking spaces and refuge and cycling storage.

Received
22 January 2026
Decision level
Delegated (officer decision)
Public comments
2
Ward
Wembley Hill
  1. Received22 Jan
  2. Validated22 Jan
  3. Consult.24 Feb
  4. Target
  5. Decided19 Mar

Decided in 56 days (council typically 56)

About this application

This is a full planning application for demolition at 80 Castleton Avenue, Wembley, HA9 7QG. Brent has handled 4,396 applications of this type. This one was decided in 56 days. The site is in a conservation area. There has been 1 other application at this address. In the past year there have been 98 applications across Wembley Hill. We hold 1,974 applications in total for the HA9 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 proposal has failed to demonstrate that Flat 4 would achieve a compliance with the overall floor to ceiling height required under policy D6 and has failed to demonstrate that sufficient levels of outlook would be provided to the bedroom which is served by roof lights only, resulting in a poor quality of amenity for future occupiers. This would be contrary to policy D6 of London Plan 2021 and policy DMP1 of Brent's Local Plan 2019-2041, and the guidance set out within Housing Design Standards LPG.
  2. The proposed two storey side extension by reason of its lack of set down or set back, would result in an overly bulky addition and would fail to appear subservient to the existing dwelling, contrary to Policy DMP1 of the Brent Local Plan 2019-2041 and Brent’s Residential Extensions & Alterations SPD 2025
  3. The proposal, by virtue of a lack of sufficient information, has not demonstrated that it would meet the required gain in biodiversity or provide an adequate urban greening factor. This is contrary to policies DMP1, BGI1 and BGI2 of the Brent Local Plan 2019-2041.
  4. In the absence of a fire statement to demonstrate sufficient measures, the proposal fails to comply with London Plan (2021) policy D12A.

From the council's decision notice.

Application details

Postcode
HA9 7QG
Application type
Full Planning Permission
Scale / size
Small

Planning application dates

Date validated
22 January 2026
Consultation expiry
24 February 2026
Neighbour consultation end
24 February 2026
Last date for comments
19 March 2026

Applicant and agent

Agent
Moch Studios
Agent address
41 Skipworth Road, London, E9 7JR

Additional information

Planning Portal ID
PP-14492687
Documents
8
Constraints
1

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Article 4 direction: Article 4 for HMOs
  • 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.

Source: Brent

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

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