Planning application
39 Lampton Avenue, Hounslow, TW3 4EW
Works: Extension Loft or dormer Small domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Certificate of lawfulness for a proposed hip to gable conversion and erection of a rear roof extension to the house and the erection of single storey detached outbuilding to be used as a garden store and gym in the rear garden.
As published by the council, reference P/2025/3675
Application record
- Reference
- P/2025/3675
- Type
- Lawful Development Certificate (Proposed)
- Status
- Decided: GRANT
- Decision
- GRANT
- Received
- 5 Dec 2025
- Validated
- 5 Dec 2025
- Decided
- 30 Jan 2026
- Ward
- Heston East
- Postcode
- TW3 4EW
Site history
Applications at this address on the Hounslow register
This site has had 3 applications since 2025: 3 approved, 0 refused.
-
P/2026/1447 Granted
39 Lampton Avenue, Hounslow, TW3 4EW
Erection of a two storey side extension and part single storey rear extension to the house.
-
PA/2025/3643 Granted
39 Lampton Avenue, Hounslow, TW3 4EW
Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 2.80 metres high to the eaves.
Timeline
Dates from the published record
-
5 Dec 2025
Received by Hounslow
-
30 Jan 2026
Decision issued: GRANT
-
12 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
7 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 30 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 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
-
39 Lampton Avenue, Hounslow, TW3 4EW
Erection of a two storey side extension and part single storey rear extension to the house.
Granted Householder Extension 7 docsSmall domestic -
39 Lampton Avenue, Hounslow, TW3 4EW
Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 2.80 metres high to the eaves.
Granted Prior approval Extension 5 docs -
18 Lampton Avenue, Hounslow, TW3 4EN
Erection of a two storey side extension, part single storey rear extension, part first floor rear extension, and front porch extension to the house.
Granted Householder Extension 17 docsSmall domestic -
14 LAMPTON AVENUE, HOUNSLOW, TW3 4EN
Erection of a hip to gable and rear roof extension with three front roof windows.
Refused Householder Extension Loft or dormer +1 7 docsDomestic -
Lampton School Lampton Avenue, Hounslow, TW3 4EP
Installation of three Air Source Heat Pumps
Granted Full applications 8 docs -
19 LAMPTON AVENUE, HOUNSLOW, TW3 4EW
Ground floor rear extension 6 metres deep, maximum height of 2.55 metres, 2.50 metres high to the eaves
Granted Prior approval Extension 6 docs
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.