1 West Halkin Street London SW1X 8JJ

1. 10 Sep 2025

   Received by Westminster

2. 2 Oct 2025

   Decision issued: Application Permitted

3. 21 Jul 2026

   Added to PlanIndex

Westminster granted permission on 2 October 2025, 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.

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

• 9 Halkin Place London SW1X 8JH

  22/03778/FULL Submitted 9 Jun 2022 50 yards away

  Installation of air conditioning unit and an acoustically louvered door to the lower ground floor vault fronting Halkin Place.

  Granted Full applications 13 docs

• 3 West Halkin Street London SW1X 8JJ

  26/00571/FULL Submitted 2 Feb 2026 50 yards away

  88% historically approved · decision due ~30 Mar

  Variation of condition 1 of planning permission dated 16 March 2021 (20/07145/FULL) for the use as seven residential flats (Class C3) including the installation of plant at lower ground floor level and associated external alterations. (Site includes 2 West Halkin Street); NAMELY, to vary the approved drawing numbers to allow minor internal and external amendments.

  Awaiting decision Full applications New dwelling 14 docs

• 3 West Halkin Street London SW1X 8JJ

  26/00557/LBC Submitted 30 Jan 2026 50 yards away

  90% historically approved · decision due ~30 Mar

  Internal and external amendments including reconfiguration of partitions/retention of existing partitions; provision of accessible service risers; conservative lower ground floor/ground floor stair case design; sensitive fire safety enhancements; like-for-like replacement of non-original/ dilapidated windows with heritage appropriate timber framed windows.

  Awaiting decision Heritage and listed buildings Windows or glazing 15 docs

• 3 West Halkin Street London SW1X 8JJ

  26/04465/LBC Submitted 6 Jul 2026 50 yards away

  90% historically approved · decision due ~31 Aug

  Alterations to roof to provide a sunken plant room on the fifth floor attic space. (Linked with 26/04464/FULL)

  Awaiting decision Heritage and listed buildings 2 docs

• 3 West Halkin Street London SW1X 8JJ

  26/04464/FULL Submitted 6 Jul 2026 50 yards away

  88% historically approved · decision due ~31 Aug

  Alterations to roof to provide a sunken plant room on the fifth floor attic space. (Linked with 26/04465/LBC)

  Awaiting decision Full applications 20 docs

• Flat 4 16 West Halkin Street London SW1X 8JL

  25/07921/FULL Submitted 31 Oct 2025 50 yards away

  Creation of terrace on flat roof and replacement of a window with a door to access the terrace.

  Withdrawn Full applications Windows or glazing 20 docs

• 26/07529/LBC Awaiting decision

  69 Eaton Place London SW1X 8DF

  Installation of new cast iron water supply pipe on rear courtyard elevation. (Linked with 26/07528/FULL)

  Received 5 Nov, published by the council 6 Nov 2026 Heritage and listed buildings
• 26/07509/LBC 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 26/07508/FULL)

  Received 4 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
• 26/07473/LBC Awaiting decision

  Flat 3 82 New Cavendish Street London W1G 9TA

  Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07472/FULL)

  Received 3 Nov, published by the council 6 Nov 2026 Heritage and listed buildings
• 26/07471/LBC Awaiting decision

  12 Queen Anne's Gate London SW1H 9AA

  Excavation of single-storey basement, internal reconfiguration and installation of modern services. (Linked with 26/07470/FULL)

  Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
• 26/07461/LBC Awaiting decision

  1 Savile Row London W1S 3JR

  Minor internal works comprising redecoration and upgrades to lighting, flooring and bathroom and kitchen facilities, together with external works including new lighting and signage.

  Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings