Planning application
P/2026/1230
126 Chatsworth Crescent, Hounslow, TW3 2PD
Proposal
Certificate of lawfulness for a proposed hip to gable conversion and erection of a rear roof extension with a Juliette balcony and two front roof windows and a single storey rear extension to the house
As published by the council, reference P/2026/1230
Timeline
Dates from the published record
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22 Apr 2026
Received by Hounslow
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17 Jun 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/2021/2420 Refused
4 HELDMANN CLOSE, HOUNSLOW, TW3 2PA
Certificate of lawfulness for the proposed erection of a part first floor rear extension to the existing first floor rear extension to the house
-
P/2023/0239 Granted
198 HEATH ROAD, HOUNSLOW, TW3 2NS
Removal of existing canopy attached to outbuilding and retrospective permission for the erection of single storey extension to existing garage and replacing cladding with brick work
-
P/2025/1402 Withdrawn
110 Elmer Gardens, Isleworth, TW7 6HA
Erection of first floor rear extension to the house.
-
P/2024/2792 Refused
85 Elmer Gardens, Isleworth, TW7 6EZ
Erection of a single storey rear extension and rear roof extension with three front roof windows to allow the change of use from single family house into a large House in Multiple Occupation.
-
P/2026/1746 Awaiting decision
152 Heath Road,Hounslow,TW3 2NS
Retrospective application for the erection of a single-storey detached outbuilding to the rear of the house.
-
P/2021/2213 Withdrawn
166 HEATH ROAD, HOUNSLOW, TW3 2NS
Erection of a single storey self contained unit in the rear garden of 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.