Planning application
16 Downs View, Isleworth, TW7 5HF
Works: Extension Loft or dormer Windows or glazing
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Certificate of lawfulness proposed for a hip to gable conversion and erection of a rear roof extension with two front roof windows to the house.
As published by the council, reference P/2025/2940
Application record
- Reference
- P/2025/2940
- Type
- Lawful Development Certificate (Proposed)
- Status
- Decided: GRANT
- Decision
- GRANT
- Received
- 30 Sep 2025
- Validated
- 30 Sep 2025
- Decided
- 25 Nov 2025
- Ward
- Osterley & Spring Grove
- Postcode
- TW7 5HF
Site history
Applications at this address on the Hounslow register
This site has had 3 applications since 2025: 2 approved, 1 refused.
-
P/2025/3732 Refused
16 Downs View, Isleworth, TW7 5HF
Erection of a rear roof extension with hip to gable conversion and front roof windows to the house.
-
P/2025/2942 Granted
16 Downs View, Isleworth, TW7 5HF
Erection of single storey side extension to the house.
Timeline
Dates from the published record
-
30 Sep 2025
Received by Hounslow
-
25 Nov 2025
Decision issued: GRANT
-
12 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
10 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 25 November 2025, 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
-
16 Downs View, Isleworth, TW7 5HF
Erection of a rear roof extension with hip to gable conversion and front roof windows to the house.
Refused Householder Extension Loft or dormer +1 10 docsDomestic -
16 Downs View, Isleworth, TW7 5HF
Erection of single storey side extension to the house.
Granted Householder Extension 13 docsSmall domestic -
41 NORTHUMBERLAND AVENUE, ISLEWORTH, TW7 5HZ
Conversion of existing store into a habitable room and replacement of up and over door with new windows
Granted Householder Windows or glazing 6 docsDomestic -
6 Roxborough Avenue, Isleworth, TW7 5HG
Erection of a part first floor rear extension to the house.
Granted Householder Extension 13 docsDomestic -
23 Downs View, Isleworth, TW7 5HF
Certificate of lawfulness for a hip to gable conversion and erection of a rear roof extension with three front roof windows to the house
Granted Lawful development Extension Loft or dormer +1 7 docs -
23 Downs View, Isleworth, TW7 5HF
Erection of a single storey ground floor side extension and part rear infill extension to the house. Following the demolition of the garage.
Withdrawn Householder Extension Demolition 6 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.