Planning application
154 New Cavendish Street London W1W 6YN
Works: New dwelling Extension
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Erection of full-height rear infill extension to provide additional commercial floorspace at basement and ground floor levels and enlargement of flats on the upper floors.
As published by the council, reference 25/07362/FULL
Application record
- Reference
- 25/07362/FULL
- Type
- Full Planning Permission Application
- Status
- Decided
- Decision
- Application Permitted
- Received
- 13 Oct 2025
- Validated
- 11 Feb 2026
- Decided
- 20 Apr 2026
- Ward
- West End
- Decision by
- Delegated Decision
- Postcode
- W1W 6YN
Timeline
Dates from the published record
-
13 Oct 2025
Received by Westminster
-
11 Feb 2026
Validated
Checked as complete and ready for consideration.
-
20 Apr 2026
Decision issued: Application Permitted
-
30 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
23 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat this grant of permission means
Westminster granted permission on 20 April 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
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