Planning application
P/2026/2144
4 Cleveland Avenue,Chiswick,W4 1SN
Proposal
Enlargement of existing basement.
As published by the council, reference P/2026/2144
Timeline
Dates from the published record
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22 Jul 2026
Received by Hounslow
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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/2026/1161 Granted
15 Cleveland Avenue, Chiswick, London, W4 1SN
Enlargement of existing single storey rear extension to the house.
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P/2026/1652 Granted
Flat 1, The Power House, 70 Chiswick High Road, Chiswick, London, W4 1SY
Details of Condition 3C (a post completion noise assessment) ) submitted pursuant to planning permission P/2025/3811 dated 23/04/2026 for Retrospective application for the insertion of a lift, installation of an A/C condenser unit on the roof of the flat and internal alterations
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P/2026/0579 Withdrawn
19 Prebend Gardens, Chiswick, London, W4 1TN
Enlargement of the house's existing basement, and erection of a single storey side extension and single storey rear infill extension to the house.
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P/2026/1771 Awaiting decision
19 Prebend Gardens,Chiswick,W4 1TN
Erection of a single storey side extension.
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P/2023/0607 Granted
42 CLEVELAND AVENUE, CHISWICK, W4 1SW
Non-material amendment to alter the description of the approval from 'Erection of a part single storey rear extension to ground floor flat' to include the wording a'nd amendments to existing fenestration' i.e.'Erection of a part single storey rear extension and amendments to existing fenestration to ground floor flat' following planning permission 00277/42/P1 dated 25/05/2022
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P/2023/0044 Refused
45 MERTON AVENUE, CHISWICK, LONDON, W4 1TA
Erection of a part two storey, part single storey rear extension to the house.
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.