Planning application
4 Dawes Avenue, Isleworth, TW7 7JT
Works: Extension
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Ground floor rear extension 6.00 metres deep, maximum height 3.28 metres, 2.77 metres high to the eaves.
As published by the council, reference PA/2025/3597
Application record
- Reference
- PA/2025/3597
- Type
- Prior Approval Larger Home Extension
- Status
- Decided: PRIOR APPROVAL DOES NOT COMPLY
- Decision
- PRIOR APPROVAL DOES NOT COMPLY
- Received
- 2 Dec 2025
- Validated
- 2 Dec 2025
- Decided
- 6 Jan 2026
- Ward
- Isleworth
- Postcode
- TW7 7JT
Site history
Applications at this address on the Hounslow register
This site has had 3 applications since 2025: 2 approved, 0 refused.
-
P/2026/2374 Awaiting decision
4 Dawes Avenue, Isleworth, TW7 7JT
Non material amendment to change the flat roof to a pitched roof of planning permission P/2026/1102 approved 29/07/2026 for the erection of a single storey rear extension to the house.
-
P/2026/1102 Granted
4 Dawes Avenue, Isleworth, TW7 7JT
Erection of a single storey rear extension to the house.
Timeline
Dates from the published record
-
2 Dec 2025
Received by Hounslow
-
6 Jan 2026
Decision issued: PRIOR APPROVAL DOES NOT COMPLY
-
12 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
6 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat this grant of permission means
Hounslow granted permission on 6 January 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About prior approval applications
Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
4 Dawes Avenue, Isleworth, TW7 7JT
83% historically approved · decision due ~12 Oct
Non material amendment to change the flat roof to a pitched roof of planning permission P/2026/1102 approved 29/07/2026 for the erection of a single storey rear extension to the house.
Awaiting decision Amendments Extension 5 docsSmall domestic -
4 Dawes Avenue, Isleworth, TW7 7JT
Erection of a single storey rear extension to the house.
Granted Householder Extension 46 docsSmall domestic -
7 DAWES AVENUE, ISLEWORTH, TW7 7JU
Erection of a single storey outbuilding with storage area and communal space.
Granted Householder 6 docsSmall domestic -
7 DAWES AVENUE, ISLEWORTH, TW7 7JU
Certificate of Lawfulness for the erection of a rear roof extension incorporating hip to gable conversion, with four front roof windows to the house
Granted Lawful development Extension Loft or dormer +1 5 docs -
294 Twickenham Road, Isleworth, TW7 7DU
dropped kerb outside of 294 twickenham road for a disabled driver
Withdrawn Householder 5 docsSmall domestic -
6 Woodstock Avenue, Isleworth, TW7 7JF
Retrospective planning permission for the conversion of the existing single family house to two residential houses with associated private amenity space, refuse storage and cycle storage.
Refused Full applications 14 docs
Other prior approval applications
In Hounslow
-
PA/2026/2167 Granted
2 Church Walk, Brentford, TW8 8DB
Ground floor rear extension 4.50 metres deep, maximum height 4.00 metres, 3.00 metres high to the eaves.
-
PA/2026/2475 Awaiting decision
4 Upton Road, Hounslow, TW3 3HP
GS868133219 - Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 3.00 metres high to the eaves
-
PA/2026/2481 Awaiting decision
6 Speart Lane, Hounslow, TW5 9EF
Ground floor rear extension 8.00 metres deep, maximum height of 3.00 metres, 2.80 metres high to the eaves
-
PA/2026/2458 Awaiting decision
82 Ringway, Southall, UB2 5SU
Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 3.00 metres high to the eaves.
-
PA/2026/2461 Awaiting decision
24 Kingston Avenue, Feltham, TW14 9SL
Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 3.00 metres high to the eaves.