Planning application
P/2026/1441
Block D and K Primrose Place,Isleworth,London,TW7 5BA
Proposal
Certificate of lawfulness for the proposed replacement of the external cladding materials to Blocks D and K.
As published by the council, reference P/2026/1441
Timeline
Dates from the published record
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12 May 2026
Received by Hounslow
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25 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
-
P/2021/2276 Refused
421 LONDON ROAD, ISLEWORTH, TW7 5AQ
Erection of a two-bedroom house on the side plot with associated landscaping, refuse provision, car and cycle parking provision
-
P/2025/0931 Withdrawn
6 Alton Close, Isleworth, TW7 6AL
Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion and front roof windows to the house.
-
P/2026/1209 Granted
6 Alton Close, Isleworth, TW7 6AL
Certificate of lawfulness for the proposed erection of a single storey detached outbuilding for use as an office and a front porch extension to the house.
-
P/2024/3261 Granted
419 London Road, Isleworth, TW7 5AQ
Erection of a two storey side and single storey rear extension with three roof lights.
-
P/2023/0187 Refused
419 LONDON ROAD, ISLEWORTH, TW7 5AQ
Formation of a vehicular access at the front of the house.
-
P/2024/3066 Granted
41 Smallberry Avenue, Isleworth, TW7 6QL
Retrospective planning application for the erection of a part single storey rear extension following the demolition of the existing shed
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.
-
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.