Planning application
P/2026/1022
462A - 464A Chiswick High Road, Chiswick, London, W4 5TT
Proposal
Erection of a mansard roof extension comprising of four self contained flats with associated solar panels, cycle and refuse storage.
As published by the council, reference P/2026/1022
Timeline
Dates from the published record
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27 Mar 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 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/2024/3016 Refused
303 Flat First Floor,Chiswick High Road,Chiswick,London,W4 4HH
Change of use from the existing self-contained flat on the first floor into a House in Multiple Occupation (HMO) for up to five people
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P/2025/0069 Withdrawn
299-303,Chiswick High Road,Chiswick,W4 4HH
Erection of new mansard roof extension across the second floor roof of the main building to accommodate two new self contained flats. A part first floor extension to an existing flat and part ground floor rear extension to the commercial unit to the rear of the property.
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P/2026/0509 Awaiting decision
299-303 Chiswick High Road, Chiswick, London, W4 4HH
Variation of condition 3 (opening hours) to allow the addition of one hour to the opening hours of the basement, 0900-0100 on Sundays to Thursdays and 0900-0230 on Fridays and Saturdays for 12 months of planning permission P/2025/1945 approved 07/11/2025 for the retrospective application for the change of use of the existing food takeaway business and restaurant into a lounge bar on the basement floor and restaurant on the ground floor of 299 to 303 Chiswick High Road.
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P/2021/1964 Granted
FLAT 7 OLD TIMBER COURT ACTON LANE, CHISWICK, W4 5JQ
Construction of third floor extension to Flat 7, Creation of new flat above and across the main part of building through roof extension at fourth floor level, with roof terrace to both flats. Additional bin and cycle storage and alterations to existing cycle store including new roof and security measures.
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P/2026/1137 Refused
Flat 12, Noble House Kings Place, Chiswick, London, W4 4BA
Variation of condition 2 (approved plans) to allow the relocation of the external condenser unit to the communal roof terrace of planning permission P/2025/3365 approved 09/02/2026 for the installation of a external condenser unit to the south elevation.
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P/2022/1138 Granted
CHISWICK TERRACE 1-15 ACTON LANE, CHISWICK, W4 5LY
Erection of a five-storey building with basement to provide a mix of commercial, retail and residential use, comprising eight flats, eight office units with terraces (totalling 1844 square metres), two retail units (totalling 697square metres) and a gym in the basement.
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.
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P/2026/1729 Granted
Blenheim Place, Flat 15, Steve Biko Way,Hounslow,TW3 3ED
Installation of two rear roof windows to the flat
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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
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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.