Planning application
P/2026/1835
106 Bassett Gardens, Isleworth, TW7 4QY
Proposal
Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion.
As published by the council, reference P/2026/1835
Timeline
Dates from the published record
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19 Jun 2026
Received by Hounslow
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26 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Hounslow for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
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
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P/2026/1941 Awaiting decision
110 Bassett Gardens, Isleworth, TW7 4QY
Erection of a rear wraparound extension and part first floor rear extension. Conversion of existing garage to a habitable space.
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P/2026/1345 Withdrawn
29 Penwerris Avenue, Isleworth, TW7 4QT
Erection of a hip to gable to both sides and a rear roof extension with three front roof windows to the house
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P/2026/1513 Awaiting decision
11 Cranmore Avenue, Isleworth, TW7 4QW
Erection of rear roof extension and a hip to gable conversion with a Juliet balcony and two front roof windows, and a two storey side, part first floor and single storey rear extension with a front porch to the house.
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P/2026/1876 Awaiting decision
28 Penwerris Avenue, Isleworth, TW7 4QX
Erection of two storey side and single storey and part first floor rear extension with conversion of the garage into habitable room and replacement of the garage doors with a window to the house.
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P/2021/2269 Granted
11 PENWERRIS AVENUE, ISLEWORTH, TW7 4QT
Erection of single storey side and rear extension following the demolition of existing garage.
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P/2026/1918 Awaiting decision
2 Bassett Gardens, Isleworth, TW7 4QZ
Erection of two single storey rear extensions to the bungalow
Other lawful development applications
In Hounslow
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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.
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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.
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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.
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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.
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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.