Planning application
P/2026/1314
657 Great West Road, Isleworth, TW7 4PT
Proposal
Erection of a rear and side roof extension with one front roof window to the house. Erection of a single storey outbuilding to the rear garden.
As published by the council, reference P/2026/1314
Timeline
Dates from the published record
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30 Apr 2026
Received by Hounslow
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14 May 2026
Validated
Checked as complete and ready for consideration.
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26 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Hounslow for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About householder applications
How this application type works
Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.
Nearby applications
Within 500 metres
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P/2026/1561 Awaiting decision
131 Thornbury Road, Isleworth, TW7 4ND
Certificate of lawfulness for the proposed erection of a detached outbuilding in the rear garden.
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P/2021/2986 Granted
2 CAROLINE CLOSE, ISLEWORTH, TW7 4QA
Works to two trees in TPO no. 141: T1 Ash Tree (Inonotus hispidus):- Fell to ground level; T2 Poplar:- Fell to ground level
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P/2021/2277 Granted
119 THORNBURY ROAD, ISLEWORTH, TW7 4ND
Erection of single storey rear extension following the demolition of the existing, enlargement of the existing rear roof extension and replacement of the front roof light
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P/2026/1843 Awaiting decision
2 Thornbury Avenue, Isleworth, TW7 4NQ
Enlargement of rear and side roof extensions to the house.
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P/2026/2057 Awaiting decision
107 Thornbury Road, Isleworth, TW7 4ND
Works to tree in a TPO 279 dead silver birch Betula pendula fell to ground level at the rear of the garden.
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P/2024/3769 Withdrawn
St Marys Church, Osterley Road, Isleworth TW7 4PW
Works within a conservation area: Clearance of low level vegetation and any tree saplings along eastern and northern boundary walls/garage structure, and along the proposed new fence line
Other householder applications
In Hounslow
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P/2026/2228 Awaiting decision
Magnolias,1 Eastbourne Road,Chiswick,W4 3EB
Erection of a front porch, single storey rear infill extension, first floor rear extension, rear roof extension and a single storey detached outbuilding.
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P/2026/2222 Awaiting decision
17 Park Drive,Acton,W3 8ND
Replacement of porch window with double glazed windows and rear window to be replaced with double glazed windows.
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P/2026/2208 Awaiting decision
20, Adelaide Terrace Great West Road, Brentford, TW8 9PQ
Erection of a single storey rear and side extension.
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P/2026/2215 Awaiting decision
1 The Drive, Feltham, TW14 0AQ
Erection of a single storey detached outbuilding.
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P/2026/2206 Awaiting decision
28 Eversley Crescent, Isleworth, TW7 4LS
Erection of a side roof extension with roof windows and a Juliet balcony to the rear of the property.