Planning application
P/2026/1385
17 Grosvenor Road, Hounslow, TW3 3ER
Proposal
Certificate of lawfulness for the proposed erection of a detached single storey outbuilding to the rear of the house.
As published by the council, reference P/2026/1385
Timeline
Dates from the published record
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7 May 2026
Received by Hounslow
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1 Jul 2026
Decision issued: GRANT
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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P/2025/2683 Withdrawn
17 Grosvenor Road, Hounslow, TW3 3ER
Erection of a rear roof extension with two front roof windows to the house.
-
PA/2026/1749 Refused
25 Grosvenor Road, Hounslow, TW3 3ER
Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 2.90 metres high to the eaves.
-
PA/2023/0275 Granted
26 GROSVENOR ROAD, HOUNSLOW, TW3 3ER
Ground floor rear extension 5.00 metres deep, maximum height 2.70 metres, 2.70 metres high to the eaves
-
P/2021/2104 Granted
17 STRAFFORD ROAD, HOUNSLOW, TW3 3EW
Certificate of lawfulness for the erection of a rear roof extension incorporating two front roof windows to the house
-
P/2026/0255 Withdrawn
17 Strafford Road, Hounslow, TW3 3EW
Change of use from a house in multiple occupation (C4 use) to a care home (C2 use)
-
P/2021/2182 Granted
17 STRAFFORD ROAD, HOUNSLOW, TW3 3EW
Erection of a single storey rear and side infill extension.
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.