57A Catherine Place London SW1E 6DY

1. 25 Sep 2025

   Received by Westminster

2. 24 Oct 2025

   Validated

   Checked as complete and ready for consideration.

3. 28 May 2026

   Decision issued: Application Permitted

4. 21 Jul 2026

   Added to PlanIndex

Westminster granted permission on 28 May 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.

• Development Site At 25 - 28 Buckingham Gate London

  25/05502/MOD106 Submitted 5 Aug 2025 50 yards away

  89% historically approved · decision due ~6 Oct

  Deed of variation to Section 106 agreement dated 15 April 2015 (as varied on 26 September 2016, 10 February 2022 and 23 January 2024) associated with planning permission dated 23 January 2025 (23/02516/FULL) namely to update and regularise a number of trigger dates to enable the provision of details to the Council for approval and to ensure the Council retains appropriate control and oversight.

  Awaiting decision Conditions 2 docs

• 32 Catherine Place London SW1E 6HL

  25/07222/ADFULL Submitted 6 Oct 2025 50 yards away

  Detailed drawings of a hard and soft landscaping scheme on the rear garden, first and third floor terrace and details of the new planters to be placed along the railing on the first-floor terrace pursuant to Condition 9 and 10 of planning permission dated 10th September 2024 (RN:24/04902/FULL)

  Refused Full applications 16 docs

• 35 Catherine Place London SW1E 6DY

  25/08167/ADFULL Submitted 10 Nov 2025 50 yards away

  Details of samples of the facing materials and detailed detailed drawings of the proposed windows, pursuant to Conditions 3 and 4 of planning permission dated 5 November 2024 (RN 23/02784/FULL).

  Refused Full applications Windows or glazing 7 docs

• 8 Wilfred Street London SW1E 6PL

  26/00509/FULL Submitted 28 Jan 2026 50 yards away

  Installation of guarding in association with use of roof as terrace.

  Refused Full applications 15 docs

• 20 Buckingham Gate London SW1E 6LB

  25/06215/TELNOT Submitted 4 Aug 2025 50 yards away

  Regulation 5 Notice of Intention to Install Fixed Line Broadband Apparatus to a Listed Building (Embassy of Eswantini).

  Decided Telecoms

• 5 Buckingham Place London SW1E 6HR

  25/08491/FULL Submitted 20 Nov 2025 50 yards away

  Replacement safety railing to the existing rear flat roof.

  Granted 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