Planning application
P/2026/1384
56 Summerhouse Avenue, Hounslow, TW5 9DF
Proposal
Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion and front and side roof windows to the house.
As published by the council, reference P/2026/1384
Timeline
Dates from the published record
-
7 May 2026
Received by Hounslow
-
29 May 2026
Validated
Checked as complete and ready for consideration.
-
8 Jul 2026
Decision issued: GRANT
-
26 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
About lawful development applications
How this application type works
A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.
Nearby applications
Within 500 metres
-
P/2025/3466 Withdrawn
45 Summerhouse Avenue, Hounslow, TW5 9DJ
Erection of single storey rear and front porch extension to the house.
-
P/2024/3743 Withdrawn
35 Summerhouse Avenue, Hounslow, TW5 9DJ
Erection of a hip to gable and rear roof extension to allow the change of use from a single family house (C3) to a House in Multiple Occupation (C4) for up to six people
-
PA/2023/0568 Granted
94 SPRINGWELL ROAD, HOUNSLOW, TW5 9EJ
Ground floor rear extension 6.00 metres deep, maximum height 3.40 metres, 2.90 metres high to the eaves
-
P/2024/2785 Refused
86 St Leonards Gardens, Hounslow, TW5 9DH
Retrospective application for the erection of a single storey rear extension
-
P/2024/2788 Refused
88 St Leonards Gardens, Hounslow, TW5 9DH
Retrospective application for the erection of a single storey rear extension
-
P/2026/1319 Granted
3 Queens Gardens, Hounslow, TW5 9DB
Erection of a single storey front infill extension to the house
Other lawful development applications
In Hounslow
-
P/2026/2219 Awaiting decision
Great West House,993 Great West Road,Brentford,TW8 9DF
Certificate of lawfulness for the installation of two electricity substations.
-
P/2026/1626 Granted
2 Oak Avenue, Hounslow, TW5 9EB
Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion and the addition of one front roof light.
-
P/2026/2168 Awaiting decision
49 Durham Road, Feltham, TW14 0AG
Certificate of lawfulness for the proposed erection of a detached outbuilding in the rear garden.
-
P/2026/1448 Granted
13 Orchard Avenue, Hounslow, TW5 0DU
Certificate of lawfulness for the proposed erection of a rear roof extension with a hip to gable conversion to the house.
-
P/2026/1682 Granted
133 Swan Road, Feltham, TW13 6LT
Certificate of lawfulness for the proposed erection of a rear roof extension with front roof windows to the house.