Planning application
P/2026/0771
30 Northcote Avenue, Isleworth, TW7 7JQ
Proposal
Certificate of lawfulness for the proposed erection of a single storey outbuilding to the rear of the house.
As published by the council, reference P/2026/0771
Timeline
Dates from the published record
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6 Mar 2026
Received by Hounslow
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26 Jul 2026
Added to PlanIndex
What withdrawal means
The process from here
The applicant withdrew this application before the council decided it, so it carries no planning weight and no fee refund is automatic. Withdrawal often follows officer feedback that a refusal was likely.
The applicant is free to submit a revised application at any time, and many withdrawn schemes return in amended form, so the site is worth watching if the proposal affected you.
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/2026/1350 Granted
42 Crane Avenue, Isleworth, TW7 7JW
Certificate of lawfulness for the proposed erection of a single storey rear extension to the house.
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P/2026/2046 Awaiting decision
59 Crane Avenue, Isleworth, TW7 7JR
Non material amendment to remove the unimplemented rear roof extension with front roof window and the window on the front elevation of planning permission 00313/59/P1 approved 10/11/2021 for the erection of a single storey rear extension and a rear roof extension with one front roof window and insertion of a window on the front elevation
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P/2023/0324 Refused
40 WOODSTOCK AVENUE, ISLEWORTH, TW7 7JE
Erection of a single storey rear extension with part first floor rear extension and rear roof extension to the house.
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06/1141/PS192 Granted
31 Northcote Road Twickenham Richmond Upon Thames TW1 1PB
Proposed Loft Conversion With Rear Dormer.
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PA26/0983 Awaiting decision
145, Haliburton Road, Twickenham, TW1 1PE
Erection of rear extension to create a sun room.
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P/2026/1983 Awaiting decision
43 Dawes Avenue, Isleworth, TW7 7JS
GS853573342 - Erection of a hip to gable and rear roof extension with minor ridge increase to the house
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.