Planning application
155 Jersey Road, Isleworth, TW7 4QL
Works: Extension
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Certificate of lawfulness for the proposed enlargement of the rear roof extension to the house.
As published by the council, reference P/2026/1156
Application record
- Reference
- P/2026/1156
- Type
- Lawful Development Certificate (Proposed)
- Status
- Decided: LAWFNOTGRANT
- Decision
- LAWFNOTGRANT
- Received
- 14 Apr 2026
- Validated
- 14 Apr 2026
- Decided
- 15 May 2026
- Ward
- Osterley & Spring Grove
- Postcode
- TW7 4QL
Timeline
Dates from the published record
-
14 Apr 2026
Received by Hounslow
-
15 May 2026
Decision issued: LAWFNOTGRANT
-
12 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
8 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 15 May 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 lawful development applications
A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
157 JERSEY ROAD, ISLEWORTH, TW7 4QJ
Erection of a two storey side extension, part single, part two storey rear extension, front porch extension and rear roof extension with front, side and rear roof windows.
Granted Householder Extension Windows or glazing 10 docsSmall domestic -
190 Jersey Road, Isleworth, TW7 4QN
65% historically approved · decision due ~25 Sep
Change of use of the existing house in multiple occupation from six persons (C4) to eight persons (Sui Generis) with no internal changes
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2 Bassett Gardens, Isleworth, TW7 4QZ
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Erection of two single storey rear extensions to the bungalow
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2A CRANMORE AVENUE, ISLEWORTH, TW7 4QW
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11 CRANMORE AVENUE, ISLEWORTH, TW7 4QW
Ground floor rear extension 6 metres deep, maximum height 3.6 metres, 2.9 metres high to the eaves
Granted Prior approval Extension 6 docs -
11 Cranmore Avenue, Isleworth, TW7 4QW
Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion and front roof windows and the erection of a front porch to the house.
Granted Lawful development Extension Loft or dormer +1 10 docsSmall domestic
Other lawful development applications
In Hounslow
-
P/2026/2033 Granted
3 Benedict Drive, Feltham, TW14 8JH
Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion with windows to the front and side of the house.
-
P/2026/2027 Granted
115 Northumberland Crescent, Feltham, TW14 9SP
Certificate of lawfulness for the proposed erection of a rear roof extension and windows to the front of the house.
-
P/2026/2009 Granted
3 Brainton Avenue, Feltham, TW14 0AZ
Certificate of lawfulness for the proposed erection of a rear roof extension and Juliette balcony with front roof windows to the house.
-
P/2026/2014 Granted
82 Sussex Avenue, Isleworth, TW7 6LB
Certificate of lawfulness for the proposed erection of a rear roof extension, a porch to the front of the house, and a front roof window.
-
P/2026/2473 Awaiting decision
16 Somerset Waye, Hounslow, TW5 9HG
Certificate of lawfulness for the proposed erection of a rear roof extension with two roof windows to the front and alterations to the existing side roof from flat roof to pitched roof.