Planning application
P/2021/2987
185 SYON LANE, ISLEWORTH, TW7 5PU
Proposal
Certificate of lawfulness for erection of rear roof extension and two front rooflights.
As published by the council, reference P/2021/2987
Timeline
Dates from the published record
-
22 Jul 2021
Received by Hounslow
-
27 Jul 2021
Decision issued: REFUSED (FULL PLANNING PERMISSION REQUIRED)
-
26 Jul 2026
Added to PlanIndex
What refusal means
The process from here
The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.
Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.
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/2026/1413 Granted
191 Syon Lane, Isleworth, TW7 5PU
Works to tree in a Conservation Area. Removal of 1 X Magnolia tree which is located within the boundary.
-
P/2021/1563 Granted
7 OAKLANDS AVENUE, ISLEWORTH, TW7 5PX
Erection of a single storey rear extension and addition of three windows on ground floor side elevation.
-
P/2026/1455 Granted
17 Crowntree Close, Isleworth, TW7 5PF
Erection of a single-storey side and rear infill extension, and a front porch extension.
-
P/2026/1437 Granted
17 Crowntree Close, Isleworth, TW7 5PF
Certificate of lawfulness for the proposed erection of a rear roof extension with front roof windows to the house.
-
P/2026/2151 Awaiting decision
17 Crowntree Close, Isleworth, TW7 5PF
Erection of a side roof extension with three roof windows on the other side of the house
-
P/2026/0924 Awaiting decision
53 Oaklands Avenue, Isleworth, TW7 5PY
Erection of a two-storey side extension on the South-East elevation, incorporating a hipped roof to match the existing house, following the demolition of the existing attached store, together with the installation of two new side dormers to the North-West (side) roof slope
Other lawful development applications
In Hounslow
-
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.