Planning application
P/2023/0164
31 THORNBURY AVENUE, ISLEWORTH, TW7 4NF
Proposal
Retrospective application for the erection of a single storey side and part rear extension, roof extension with rear and side dormers and roof windows; changes to front boundary wall, rendering of external walls and replacement windows and doors.
As published by the council, reference P/2023/0164
Timeline
Dates from the published record
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17 Jan 2023
Received by Hounslow
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14 Mar 2023
Decision issued: REFUSED PLANNING PERMISSION
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26 Jul 2026
Added to PlanIndex
What refusal means
The process from here
The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.
Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.
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/2026/1623 Granted
30 Thornbury Avenue, Isleworth, TW7 4NQ
Works to tree in a Conservation Area. T1. Apple. Fell to ground level and grind out stump. Rear garden (east boundary)
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P/2024/1877 Granted
28 Thornbury Avenue, Isleworth, TW7 4NQ
Erection of a single storey rear infill replacing the existing conservatory, part single storey rear extension, side and rear roof extension and detached outbuilding at the rear of the garden
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P/2021/2046 Granted
24 THORNBURY AVENUE, ISLEWORTH, TW7 4NQ
Variation of Condition 2 (approved plans) and Condition 3 (no additional windows and doors) to improve the appearance and utility of the extension of planning application 01118/24/P1 approved under appeal dated 30/11/2020 for erection of single storey rear extension and side and rear roof dormer extensions with one front roof window to the house and alteration to fenestration.
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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/2026/1518 Granted
18 Osterley Avenue, Isleworth, TW7 4QF
Erection of single storey and a part first floor rear extension to the house and erection of single storey detached outbuilding to be used as a gym in the rear garden.
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P/2021/2224 Granted
23 MARBAIX GARDENS, ISLEWORTH, TW7 4FD
Erection of a 2.2 metre high pergola and an 80 cm-high raised bed within the rear garden.
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.