Planning application
25/05090/FULL
9 Cavendish Square London W1G 9DF
Proposal
Installation of a non-mechanical louvre at lower ground floor level on the Chandos Street elevation.
As published by the council, reference 25/05090/FULL
Timeline
Dates from the published record
-
22 Jul 2025
Received by Westminster
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29 Jul 2025
Validated
Checked as complete and ready for consideration.
-
19 Sep 2025
Decision issued: Application Permitted
-
21 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
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26/03309/FULL Awaiting decision
9 Cavendish Square London W1G 9DF
Installation of CCTV cameras at Ground Floor; and louvres in place of existing windows at Lower Ground Floor (above existing doorset).
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26/04387/FULL Awaiting decision
11 - 13 Cavendish Square London W1G 0AN
Replacement roof lantern and roof tiles. (Linked with 26/04388/LBC)
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26/04388/LBC Awaiting decision
11 - 13 Cavendish Square London W1G 0AN
Replacement roof lantern and roof tiles. (Linked with 26/04387/FULL)
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26/04318/FULL Awaiting decision
11 - 13 Cavendish Square London W1G 0AN
Replacement flue to accompany new boiler. (Linked with 26/04319/LBC)
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26/04319/LBC Awaiting decision
11 - 13 Cavendish Square London W1G 0AN
Replacement flue to accompany new boiler. (Linked with 26/04318/FULL)
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26/03867/FULL Awaiting decision
Ground Floor 8 Cavendish Square London W1G 0PD
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Details of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 5 of planning permission dated 18th November 2025 (RN:25/06159).
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26/04989/FULL Awaiting decision
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26/04986/FULL Awaiting decision
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