Planning application
P/2026/1481
143 Waye Avenue, Hounslow, TW5 9SQ
Proposal
Certificate of Lawfulness for the proposed erection of a rear roof extension with hip to gable conversion and three front roof windows to the house.
As published by the council, reference P/2026/1481
Timeline
Dates from the published record
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15 May 2026
Received by Hounslow
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26 Jun 2026
Validated
Checked as complete and ready for consideration.
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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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PA/2023/0350 Granted
127 WAYE AVENUE, HOUNSLOW, TW5 9SQ
Ground floor rear extension 4.00 metres deep, maximum height 3.49 metres, 2.65 metres high to the eaves
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P/2026/1740 Awaiting decision
66 Waye Avenue, Hounslow, TW5 9SE
Certificate of lawfulness for the proposed erection of a single storey rear extension and a single storey detached outbuilding.
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PA/2026/1781 Awaiting decision
92 Waye Avenue, Hounslow, TW5 9SF
Ground floor rear extension 5.50 metres deep, maximum height of 3.50 metres, 2.60 metres high to the eaves
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P/2026/1783 Awaiting decision
126 Byron Avenue, Hounslow, TW4 6LY
Certificate of lawfulness for the proposed erection of a detached outbuilding in the rear garden.
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P/2025/1194 Withdrawn
48 Berkeley Avenue, Hounslow, TW4 6LA
Conversion of the existing four bed House in Multiple Occupation to a six bed House in Multiple Occupation.
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P/2026/1726 Awaiting decision
111 Byron Avenue, Hounslow, TW4 6LU
Certificate of lawfulness for the proposed erection of a detached outbuilding in the rear garden.
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.