12 Berkeley Street London W1J 8DT

This site has had 2 applications since 2025: 1 approved, 0 refused.

• 25/08196/FULL Granted

  12 Berkeley Street London W1J 8DT

  Variation of Condition 1 of planning permission dated 01 July 2025 (Ref: 25/00526/FULL) for, 'Alterations to 12 Berkeley Street including replacement of mansard roof with additional storey; extension of rear elevation pitch with inset terraces; infill of lightwell at basement and ground level; reconfiguration of shopfront at ground floor level; upgrades to the building's safety and sustainability performance; and associated works'; Namely, to allow the introduction of a new second-floor terrace, elevational refinements, material alterations, and associated detailing changes as part of the permitted works. (Application under Section 73 of the Act).

  Decided 30 Mar 2026 Full applications

1. 5 May 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 30 June 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.

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.

• 12 Berkeley Street London W1J 8DT

  25/08196/FULL Submitted 11 Nov 2025 50 yards away

  Variation of Condition 1 of planning permission dated 01 July 2025 (Ref: 25/00526/FULL) for, 'Alterations to 12 Berkeley Street including replacement of mansard roof with additional storey; extension of rear elevation pitch with inset terraces; infill of lightwell at basement and ground level; reconfiguration of shopfront at ground floor level; upgrades to the building's safety and sustainability performance; and associated works'; Namely, to allow the introduction of a new second-floor terrace, elevational refinements, material alterations, and associated detailing changes as part of the permitted works. (Application under Section 73 of the Act).

  Granted Full applications Extension Loft or dormer +1 21 docs

• 13 Berkeley Street London W1J 8DU

  25/06530/LBC Submitted 12 Sep 2025 50 yards away

  Fit out of internal office areas to existing 4th, 5th and 6th floors including strip out of existing non bearing internal partitions and joinery, independent from historic fabric; strip out of existing kitchens at rear rooms to 4th and 5th Floors; replacement of existing carpet floor tiles for new carpet floor, vinyl floor and ceramic tiles on existing non historic suspended subfloor; new proposed plaster board and glazed non bearing partitions and doors to form new layout, fixed to non historic fabric; decoration to existing perimetral independent lining partitions and ceilings; new proposed kitchen and toilets; installation of new lighting, small power and data and security system.

  Granted Heritage and listed buildings Windows or glazing 27 docs

• 11 Berkeley Street London W1J 8DS

  25/07116/ADV Submitted 2 Oct 2025 50 yards away

  Display of externally illuminated fascia sign measuring 2m X 0.6m

  Granted Advertising 9 docs

• 11 Berkeley Street London W1J 8DS

  25/07115/FULL Submitted 2 Oct 2025 50 yards away

  Installation of a new shopfront.

  Granted Full applications Windows or glazing 17 docs

• 13 Berkeley Street London W1J 8DU

  26/07262/FULL Submitted 23 Oct 2026 50 yards away

  88% historically approved · decision due ~30 Dec

  Existing external door to be replaced with new aluminum framed glazed door. (Linked with 26/07263/LBC)

  Awaiting decision Full applications Windows or glazing

• 13 Berkeley Street London W1J 8DU

  26/07263/LBC Submitted 23 Oct 2026 50 yards away

  90% historically approved · decision due ~30 Dec

  Existing external door to be replaces with new aluminum framed glazed door. (Linked with 26/07262/FULL)

  Awaiting decision Heritage and listed buildings Windows or glazing

• 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