Planning application
P/2026/2027
115 Northumberland Crescent, Feltham, TW14 9SP
Proposal
Certificate of lawfulness for the proposed erection of a rear roof extension and windows to the front of the house.
As published by the council, reference P/2026/2027
Timeline
Dates from the published record
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8 Jul 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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PA/2026/2028 Awaiting decision
115 Northumberland Crescent, Feltham, TW14 9SP
Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 2.70 metres high to the eaves.
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PA/2021/2708 Granted
42 NORTHUMBERLAND CRESCENT, FELTHAM, TW14 9SZ
Ground floor rear extension 6 metres deep, maximum height of 3 metres, 2.40 metres high to the eaves
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P/2025/2555 Withdrawn
The Jubilee Priesthood Centre New Road, Bedfont, TW14 8HR
Variation of condition 5, use of outbuilding, to allow the outbuilding to be used for a wider range of ancillary activities of planning permission P/2024/1843 approved 17/10/2024 for the replacement of existing timber outbuilding with brick built outbuilding
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P/2025/3388 Withdrawn
134 Northumberland Crescent, Feltham, TW14 9SW
Retrospective application for the erection of a hip to gable and rear roof extension to the house
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P/2023/0211 Granted
1 DORCHESTER DRIVE, FELTHAM, TW14 8HP
Certificate of lawfulness for the erection of a rear roof extension with hip to gable conversion and four front rooflights. The proposal includes a single storey side extension, front porch and conversion of garage into a habitable room.
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PA/2025/0501 Withdrawn
42 New Road, Bedfont, TW14 8HN
Ground floor rear extension 3.50 metres deep, maximum height of 3.00 metres, 2.80 metres high to the eaves
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.