46 South Eaton Place London SW1W 9JJ

1. 23 Jul 2025

   Received by Westminster

2. 5 Nov 2025

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 31 December 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Westminster took a median of 91 days over the applications it decided in the last year.

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 119 days. More in our guide to how long planning decisions take.

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.

• 54 South Eaton Place London SW1W 9JJ

  25/08023/ADFULL Submitted 4 Nov 2025 50 yards away

  Detailed drawings showing revised window details, photographic brickwork samples and detailed drawings of the railings pursuant to Conditions 4, 6 and 7 of planning permission dated 19th June 2025 (RN: 25/01733/FULL)

  Granted Full applications Windows or glazing 18 docs

• 54 South Eaton Place London SW1W 9JJ

  26/05333/ADFULL Submitted 6 Aug 2026 50 yards away

  89% historically approved · decision due ~1 Oct

  Details of railings pursuant to condition 7 of planning permission dated 18 June 2025 (RN: 25/01733/FULL)

  Decided

• 54 South Eaton Place London SW1W 9JJ

  25/06039/FULL Submitted 22 Aug 2025 50 yards away

  88% historically approved · decision due ~30 Oct

  Installation of an air-source heat pump within louvred enclosure at main roof level.

  Awaiting decision Full applications 24 docs

• 79 Eaton Terrace London SW1W 8TN

  25/05689/FULL Submitted 13 Aug 2025 50 yards away

  Erection of lower ground floor and ground floor rear extensions. Installation of air conditioning plant within two acoustic enclosures in rear garden and associated landscaping works. Alterations to windows on the rear elevation. Replacement of staircase and railings to front lightwell, alterations to front vaults and installation of a rainwater downpipe to the front elevation.

  Granted Full applications Extension Windows or glazing 54 docs

• 79 Eaton Terrace London SW1W 8TN

  25/05690/LBC Submitted 13 Aug 2025 50 yards away

  Erection of lower ground floor and ground floor rear extensions. Alterations to windows on the rear elevation. Replacement of staircase and railings to front lightwell and installation of a rainwater downpipe to the front elevation. Internal alterations including lowering of floor of front vaults, alterations to stairs including stair winders in some levels; lowering of floor levels in lower ground floor rear room, first and second floors of closet wing, and installation of internal mechanical services.

  Granted Heritage and listed buildings Extension Windows or glazing 21 docs

• 27 South Eaton Place London SW1W 9EL

  25/05385/LBC Submitted 31 Jul 2025 50 yards away

  External alterations, erection of a rear extension to lower ground floor level, creation of garden terrace, single storey ground floor closet wing infill extension, internal alterations, replacement window openings, roof lantern and a Juliet balcony to replace existing landing and step access down to garden level and internal works to front vaults. (Linked to 25/05384/FULL)

  Granted Heritage and listed buildings Extension Windows or glazing 8 docs
  Small domestic

• 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