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Planning application

9 Chester Mews London SW1X 7AH

Decided Westminster 26/03339/FULL Full applications

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Excavation of basement in connection with the upgrade and enlargement of commerical space (Use Class E). (Site includes 3-9 Chester Mews)

As published by the council, reference 26/03339/FULL

Application record

Reference
26/03339/FULL
Category
Full applications
Status
Decided
Received
20 May 2026
Validated
27 May 2026
Ward
Knightsbridge & Belgravia
Postcode
SW1X 7AH

Timeline

Dates from the published record

  1. 20 May 2026

    Received by Westminster

  2. 27 May 2026

    Validated

    Checked as complete and ready for consideration.

  3. 21 Jul 2026

    Added to PlanIndex

  4. 13 Oct 2026

    Status changed to Decided

    Previously Pending.

Documents

Plans, drawings, consultee responses and the officer's report

34 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.

Watch members (£5 a month) open the document list from here.

Open the documents

After the decision

Westminster has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. 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.

Nearby applications

Within 0.3 miles

  • 3 Chester Mews London SW1X 7AH

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  • 3 Wilton Street London SW1X 7AF

    25/05488/LBC Submitted 5 Aug 2025 50 yards away

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  • 3 Wilton Street London SW1X 7AF

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  • 3 Wilton Street London SW1X 7AF

    25/06551/LBC Submitted 12 Sep 2025 50 yards away

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    Refused Heritage and listed buildings Windows or glazing 21 docs

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    Replacement of existing security lighting to the Buckingham Palace Forecourt with 80 compact LED spotlights installed within the lantern clusters across 10 principal piers, with associated concealed cabling and reversible fixings. (Linked with 26/07509/LBC)

    Received 4 Nov, published by the council 5 Nov 2026 Full applications
  • 26/07472/FULL Awaiting decision

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    Received 3 Nov, published by the council 6 Nov 2026 Full applications