4 Grosvenor Square London W1K 4AE

This site has had 4 applications since 2026.

• 26/05994/LBC Awaiting decision

  4 Grosvenor Square London W1K 4AE

  Limited work to maintaining and repairing the roof; building facade and enhancing the accessibility of the entrance. (Linked to 26/05993/FULL)

  Submitted 2 Sep 2026 Heritage and listed buildings
• 26/05448/LBC Withdrawn

  4 Grosvenor Square London W1K 4AE

  Internal alterations including the refurbishment and stabilization of the secondary service staircase, fabric conservation, and the modernization of the vertical transport lift core infrastructure.

  Submitted 11 Aug 2026 Heritage and listed buildings
• 26/05449/LBC Decided

  4 Grosvenor Square London W1K 4AE

  Internal alterations including the refurbishment and stabilization of the secondary service staircase, fabric conservation, and the modernization of the vertical transport lift core infrastructure.

  Submitted 11 Aug 2026 Heritage and listed buildings

1. 2 Sep 2026

   Received by Westminster

2. 11 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 28 October 2026, 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.

1 later application on the register refers to this one:

• 26/05994/LBC Awaiting decision

  4 Grosvenor Square London W1K 4AE

  Limited work to maintaining and repairing the roof; building facade and enhancing the accessibility of the entrance. (Linked to 26/05993/FULL)

  Submitted 2 Sep 2026 Heritage and listed buildings

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.

• 4 Grosvenor Square London W1K 4AE

  26/05448/LBC Submitted 11 Aug 2026 50 yards away

  90% historically approved · decision due ~8 Oct

  Internal alterations including the refurbishment and stabilization of the secondary service staircase, fabric conservation, and the modernization of the vertical transport lift core infrastructure.

  Withdrawn Heritage and listed buildings

• 4 Grosvenor Square London W1K 4AE

  26/05449/LBC Submitted 11 Aug 2026 50 yards away

  90% historically approved · decision due ~6 Oct

  Internal alterations including the refurbishment and stabilization of the secondary service staircase, fabric conservation, and the modernization of the vertical transport lift core infrastructure.

  Decided Heritage and listed buildings

• 4 Grosvenor Square London W1K 4AE

  26/05994/LBC Submitted 2 Sep 2026 50 yards away

  90% historically approved · decision due ~28 Oct

  Limited work to maintaining and repairing the roof; building facade and enhancing the accessibility of the entrance. (Linked to 26/05993/FULL)

  Awaiting decision Heritage and listed buildings

• 14 Three Kings Yard London W1K 4EH

  26/02050/LBC Submitted 27 Mar 2026 50 yards away

  90% historically approved · decision due ~22 May

  Retrofit and refurbishment of embassy building including external alterations at ground floor level to provide step free access through the creation of an external ramp to the entrance within private mews, installation of new and replacement plant and solar panels at roof level. (LINKED 26/02050/LBC)

  Decided Heritage and listed buildings

• 14 Three Kings Yard London W1K 4EH

  26/02049/FULL Submitted 27 Mar 2026 50 yards away

  88% historically approved · decision due ~22 May

  Retrofit and refurbishment of embassy building including external alterations at ground floor level to provide step free access through the creation of an external ramp to the entrance within private mews, installation of new and replacement plant and solar panels at roof level (LINKED 26/02050/LBC)

  Decided Full applications

• Grosvenor Square Gardens Grosvenor Square London W1K 6LD

  26/03492/TCA Submitted 28 May 2026 50 yards away

  1 x London plane (T503): Reduce apical branch by 1m

  Granted Trees 8 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