48 Mount Street London W1K 2SB

1. 18 Dec 2025

   Received by Westminster

2. 5 Mar 2026

   Decision issued: Application Permitted

3. 20 Jul 2026

   Added to PlanIndex

Westminster granted permission on 5 March 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.

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.

• 46 Mount Street London W1K 2SA

  26/03193/LBC Submitted 14 May 2026 50 yards away

  90% historically approved · decision due ~9 Jul

  Internal alterations including the creation of an internal opening at ground floor level and provision of glazed double doors; removal of an existing doorway; removal of suspended ceiling; restoration of original cornices and associated works.

  Awaiting decision Heritage and listed buildings Windows or glazing 15 docs

• Flat 1 51 Mount Street London W1K 2SB

  26/01200/LBC Submitted 25 Feb 2026 50 yards away

  Installation of fibre cable from an existing fibre box located in the basement to the second floor communications room

  Granted Heritage and listed buildings 12 docs

• 6 Reeves Mews London W1K 2EE

  11/00317/FULL Submitted 12 Jan 2011 50 yards away

  Demolition of the rear single storey building and store; creation of a new basement level; construction of a new rear extension at ground floor level with openable rooflights; lowering of cill heights to two front windows and formation of an entrance to Reeves Mews in connection with the existing office use (Class B1).

  Granted Full applications Extension Loft or dormer +2 10 docs
  Small domestic

• 6 Balfour Place London W1K 2AX

  25/07912/P3JPA Submitted 31 Oct 2025 50 yards away

  Notification for Prior Approval for the change of use of the lower ground floor and part of the ground floor from Use Class E to provide 1 residential flat Use Class C3 under the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) Schedule 2, Part 3, Class MA.

  Granted Prior approval 29 docs

• Basement And Ground Floor 49 South Audley Street London W1K 2QD

  26/00620/ADV Submitted 3 Feb 2026 50 yards away

  82% historically approved · decision due ~31 Mar

  Display of one halo illuminated fascia sign measuring 0.91m x 0.75m

  Awaiting decision Advertising 1 doc

• 41 Reeves Mews London W1K 2EH

  25/08615/ADFULL Submitted 25 Nov 2025 50 yards away

  88% historically approved · decision due ~20 Jan

  Details of appropriate arrangements to secure measures to mitigate the potential increased demand for on-street residents car parking in the vicinity of the site pursuant to condition 7 of planning permission dated 29 October 2025 (RN: 25/04585/FULL)

  Awaiting decision Full applications 3 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