Planning application
P/2026/1370
1 White Swan Mews, Chiswick, London, W4 2AU
Proposal
Certificate of lawfulness for the proposed erection of a rear roof extension, single storey rear extension, and first floor rear extension with front roof windows to the house.
As published by the council, reference P/2026/1370
Timeline
Dates from the published record
-
6 May 2026
Received by Hounslow
-
1 Jul 2026
Decision issued: LAWFNOTGRANT
-
26 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
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/2024/2878 Refused
1 White Swan Mews, Chiswick, London, W4 2AU
Erection of front and rear roof extensions with additional window to second storey rear bedroom and installation of skylight at ground floor rear level.
-
P/2024/2447 Granted
Schoolkeepers Cottage,1 Devonshire Street,Chiswick,W4 2AX
Installation of external wall insulation to all walls
-
P/2024/1457 Granted
2 Short Road, Chiswick, London, W4 2QU
Erection of a rear roof extension with Juliet balcony and two front roof windows with raising of ridge height
-
P/2026/2166 Awaiting decision
St Marys Rc Primary School Duke Road, Chiswick, London, W4 2DF
Installation of pedestrian and vehicle access gates to the school site
-
P/2024/4301 Awaiting decision
Cetas Otomotiv, Hogarth Roundabout, Chiswick, W4 2TH
Installation of an internally illuminated advertisement with static content display.
-
P/2025/3208 Withdrawn
Oldfield House, Flat 3 Devonshire Road Chiswick London Hounslow W4 2AP
The proposed works involve kitchen renovation, including the installation of new kitchen cabinetry. There is a larder within the kitchen that houses the gas meter. We are uncertain whether the wall enclosing the larder is load-bearing. The intention is to remove this small wall to allow the new cabinetry and worktop to extend seamlessly across the space.
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.