Planning application
P/2026/1686
26 Cornwall Grove, Chiswick, London, W4 2LB
Proposal
Erection of a single storey part side and rear extension to the ground floor flat.
As published by the council, reference P/2026/1686
Timeline
Dates from the published record
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8 Jun 2026
Received by Hounslow
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17 Jul 2026
Decision issued: APPROVED
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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 full applications applications
How this application type works
A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.
Nearby applications
Within 500 metres
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P/2026/2135 Awaiting decision
55 Eastbury Grove, Chiswick, W4 2JT.
Certificate of lawfulness for the proposed conversion of flats back to houses and erection of a Juliet balcony and sliding doors to the rear of the property.
-
P/2026/1408 Refused
19 Ashbourne Grove, Chiswick, London, W4 2JH
Erection of a rear roof and outrigger extension with three front roof windows to the house.
-
P/2026/1386 Granted
19 Ashbourne Grove, Chiswick, London, W4 2JH
Erection of a single-storey rear and infill extension.
-
P/2026/1887 Awaiting decision
19 Ashbourne Grove,Chiswick,W4 2JH
Certificate of lawfulness for the proposed erection of a rear roof extension with windows to the front of the house.
-
P/2024/2855 Granted
184 Devonshire Road, Chiswick, London, W4 2AW
Erection of a rear roof and outrigger extension with two front roof windows and a ground floor single storey side rear infill extension to the house.
-
P/2025/3206 Awaiting decision
112 -118 Chiswick Lane South ,Chiswick, London,W4 2QA
Details of Condition 4 (highway works to the existing vehicular access) submitted pursuant to planning permission 01264/112-118/P8 - P/2023/1555 dated 02/05/2024 for the conversion of office space to create four houses with private amenity space and bin and cycle storage incorporating internal and external alterations. Coinciding with Listed Building application 01264/112-118/L12 (P/2023/1567)
Other full applications applications
In Hounslow
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P/2026/2210 Awaiting decision
4 Crane Avenue, Isleworth, TW7 7JL
Erection of a part single storey rear extension to the house of occupation.
-
P/2026/1729 Granted
Blenheim Place, Flat 15, Steve Biko Way,Hounslow,TW3 3ED
Installation of two rear roof windows to the flat
-
P/2026/0725 Refused
Unit 6 Worton Hall Industrial Estate, Worton Road, Isleworth, TW7 6ER
Retrospective application for the installation of two stacked storage containers in two locations
-
P/2026/2180 Awaiting decision
50 Barrowgate Road, Chiswick, London, W4 4QY
Formation of vehicular access to the flats
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P/2026/1694 Refused
Oxbridge Court Oxford Road North Chiswick London Hounslow W4 4DP
Erection of a fourth floor level comprising of six self contained units with associated cycle and refuse storage.