15 Great Cumberland Place London W1H 7AS

1. 8 Dec 2025

   Received by Westminster

2. 29 Jan 2026

   Validated

   Checked as complete and ready for consideration.

3. 16 Apr 2026

   Decision issued: Application Permitted

4. 20 Jul 2026

   Added to PlanIndex

Westminster granted permission on 16 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.

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.

• Cumberland Court Great Cumberland Place London W1H 7DP

  23/02438/ADFULL Submitted 12 Apr 2023 50 yards away

  Detailed drawings of the first floor windows pursuant to Condition 5 of planning permission dated 17 January 2023 (RN:22/07762/FULL)

  Granted Full applications Windows or glazing 15 docs

• Unit 3 6 Marble Arch London W1H 7EJ

  22/05686/ADV Submitted 19 Aug 2022 50 yards away

  82% historically approved · decision due ~14 Oct

  Display of X1 internally illuminated projecting sign and X1 internally illuminated fascia sign measuring 0.6m x 0.6m and 0.57m x 0.87m

  Awaiting decision Advertising 9 docs

• Unit 1 5 Marble Arch London W1H 7EJ

  22/05403/ADV Submitted 8 Aug 2022 50 yards away

  Display of one non-illuminated fascia sign measuring 0.93m x 1.4m and one non-illuminated projecting sign measuring 0.6m x 0.6m

  Decided Advertising 9 docs

• 1 Marble Arch London W1H 7EJ

  25/08614/ADV Submitted 25 Nov 2025 50 yards away

  Display of Christmas light surrounds to shopfront windows for a temporary period from 26 November 2025 to 9 January 2026.

  Granted Advertising Windows or glazing 11 docs

• Proposed Development At 1-4 Marble Arch And 1 - 1A Great Cumberland Place London W1H 7AL

  22/05205/ADFULL Submitted 1 Aug 2022 100 yards away

  Details of a supplementary acoustic report pursuant to Condition 13 of planning permission dated 24th August 2018 (RN:18/05362/FULL)

  Granted Full applications 8 docs

• Church Of The Annunciation Bryanston Street London W1H 7AH

  26/04842/FULL Submitted 20 Jul 2026 100 yards away

  88% historically approved · decision due ~14 Sep

  Installation of solar photovoltaic panels to the south pitch of the nave roof, associated inverters and batteries on the west roofs, and improvements to the external safe roof access arrangements.

  Decided Full applications 18 docs

• 26/07528/FULL Awaiting decision

  69 Eaton Place London SW1X 8DF

  Installation of new cast iron water pipe on rear courtyard elevation. (Linked with 26/07529/LBC)

  Received 5 Nov, published by the council 6 Nov 2026 Full applications
• 26/05200/FULL Decided

  1 The Court House 165 Seymour Place London W1H 4PU

  Installation of waterproofing system to the existing lead flat roofs

  Received 3 Aug, published by the council 28 Aug 2026 Full applications
• 26/07521/FULL Awaiting decision

  Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ

  Installation of one external condenser unit

  Received 4 Nov, published by the council 6 Nov 2026 Full applications
• 26/07508/FULL Awaiting decision

  Buckingham Palace The Mall London SW1A 1AA

  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

  Flat 3 82 New Cavendish Street London W1G 9TA

  Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07473/LBC)

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