155 Carlton Avenue East, Wembley, HA9 8PU

25/3127Full planning permissionRefused

Full

Refused on 13 February 2026

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 existing garage and store, erection of two storey side to rear extension, roof alterations to include increase in ridge height, moving roof plane forward, hip-to-gable roof extension, rear dormer extension, conversion of dwellinghouse into 4x self contained flats and installation of rooflights and pv panels to dwellinghouse.

Submitted: 18 November 2025
Council: London Borough of Brent

ReceivedSubmitted18 Nov
ValidatedValidated
Consult.Consultation
TargetTarget Date
DecidedDecided13 Feb

Decided in 87 days (council typically 56)

About this application

This is a planning application for demolition at 155 Carlton Avenue East, Wembley, HA9 8PU. Brent has handled 580 applications of this type. This one was decided in 87 days, 4 weeks longer than Brent's typical decision time. The site is in a conservation area. There have been 16 other applications at this address. In the past year there have been 81 applications across Preston. We hold 1,977 applications in total for the HA9 postcode area.

70% of full planning permission 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

Having regard to the inaccurate and inconsistent plans submitted, the Local Planning Authority is unable to make an accurate and full assessment on this application. This is contrary to policy DMP1 of Brent's Local Plan 2019-2041.
The proposed development, by virtue of its inadequate floor to ceiling heights to the loft floor flat would result in a substandard quality of accommodation for future occupants, contrary to policy D6 of the London Plan 2021 and policy DMP1 of Brent's Local Plan 2019-2041.
The proposed development, by reason of the increased ridge height, forward projection of the roof plane, and increased roof pitch, would result in a roof form that appears incongruous and fails to respect the established roof form of the host dwelling and the immediately adjoining properties, Nos.153 and No. 157 Carlton Avenue East. The proposal would unbalance the symmetry of the semi-detached pair, be out of keeping and character, resulting in visual harm to the streetscene. This is contrary to policy DMP1 of Brent's Local Plan 2019-2041 and the guidance set out in Brent's Residential Extensions and Alterations SPD 2025.

From the council's decision notice.

Application details

Postcode: HA9 8PU
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 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.

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.

Planning history at this site

16 other applications at this property, newest first.

Source: Brent

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

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