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12A Oaklands Avenue, Isleworth, TW7 5PX

P/2025/3420Householder ApplicationsApproved
Householder

Approved on 2 March 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

Erection of a single storey rear extension to the house and erection of a single storey detached outbuilding following demolition of the existing detached outbuilding in the rear garden

Received
14 November 2025
Ward
Osterley & Spring Grove
  1. Received14 Nov
  2. Validated4 Dec
  3. Consult.2 Jan
  4. Target
  5. Decided2 Mar

Decided in 88 days (council typically 56)

About this application

This is a full planning application for demolition at 12A Oaklands Avenue, Isleworth, TW7 5PX. Hounslow has handled 2,372 applications of this type. This one was decided in 108 days, 7 weeks longer than Hounslow's typical decision time. The site is in the Osterley Park conservation area. There are no previous applications recorded at this address. In the past year there have been 215 applications across Osterley & Spring Grove. We hold 894 applications in total for the TW7 postcode area.

76% of full applications at London Borough of Hounslow 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
TW7 5PX
Application type
Householder Applications
Scale / size
Small

Planning application dates

Date validated
4 December 2025
Consultation expiry
2 January 2026
Consultation start
8 December 2025
Consultation end
2 January 2026
Application expires
29 January 2026

Planning decision

Statutory period
56 days

Publicity

First advertised
12 December 2025

Additional information

Documents
18

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Osterley Park
  • Article 4 direction: Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 Direction
  • Flood zone 1: Low probability (rivers and sea)

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (21)

flood storage 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: Hounslow

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

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