Basement And Ground Floor Masionette 3 Upper Brook Street London W1K 6PA

This site has had 3 applications since 2025: 1 approved, 0 refused.

• 26/03248/LBC Awaiting decision

  Basement And Ground Floor Masionette 3 Upper Brook Street London W1K 6PA

  Replacement of existing front elevaiton sash windows with slimline double-glazed heritage units together with minor repair and redecoration of existing facade and existing front doors; replacement of windows and doors in rear modern extension and internal lightwell along with formation of a new window opening. (Linked with 26/03247/FULL)

  Submitted 18 May 2026 Heritage and listed buildings
• 25/09294/LBC Granted

  Basement And Ground Floor Masionette 3 Upper Brook Street London W1K 6PA

  Replacement and reconfiguration of modern partitions at ground and lower ground floor level, along with the replacement of modern bathroom and kitchen fittings and finishes.

  Decided 31 Mar 2026 Heritage and listed buildings

1. 18 May 2026

   Received by Westminster

2. 28 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 23 July 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.

• Basement And Ground Floor Masionette 3 Upper Brook Street London W1K 6PA

  25/09294/LBC Submitted 23 Dec 2025 50 yards away

  Replacement and reconfiguration of modern partitions at ground and lower ground floor level, along with the replacement of modern bathroom and kitchen fittings and finishes.

  Granted Heritage and listed buildings 16 docs

• Basement And Ground Floor Masionette 3 Upper Brook Street London W1K 6PA

  26/03248/LBC Submitted 18 May 2026 50 yards away

  90% historically approved · decision due ~23 Jul

  Replacement of existing front elevaiton sash windows with slimline double-glazed heritage units together with minor repair and redecoration of existing facade and existing front doors; replacement of windows and doors in rear modern extension and internal lightwell along with formation of a new window opening. (Linked with 26/03247/FULL)

  Awaiting decision Heritage and listed buildings Extension Windows or glazing 1 doc

• Development Site At 1 Lees Place, 43 North Audley Street And 22 Grosvenor Square London W1K 6DT

  26/02508/FULL Submitted 16 Apr 2026 50 yards away

  88% historically approved · decision due ~15 Jun

  Installation of a single-storey retail pod to the front of the building, fronting North Audley Street, for a temporary period from 1 September 2026 to 31 March 2027. (Linked with 26/02509/LBC)

  Awaiting decision Full applications 16 docs
  Small domestic

• Development Site At 1 Lees Place, 43 North Audley Street And 22 Grosvenor Square London W1K 6DT

  26/02509/LBC Submitted 16 Apr 2026 50 yards away

  90% historically approved · decision due ~15 Jun

  Installation of a single-storey retail pod to the front of the building, fronting North Audley Street, for a temporary period from 1 September 2026 to 31 March 2027. (Linked with 26/02508/FULL)

  Awaiting decision Heritage and listed buildings 6 docs
  Small domestic

• 30 Grosvenor Square London W1K 6AN

  25/09270/FULL Submitted 22 Dec 2025 50 yards away

  Installation of permanent external planter boxes at ground floor level on the Upper Brook Street elevation and associated works.

  Granted Full applications 22 docs

• 2 Shepherd Close London W1K 6EA

  22/04380/NMA Submitted 1 Jul 2022 50 yards away

  Amendments to planning permission dated 23 June 2022 (RN:22/02527/FULL) for Enlargement of existing front lightwell, addition of rooflight over main staircase, relocation of lower ground floor door on the rear elevation, addition of lead capped entrance canopy at lower ground level, replacement lead roofing on rear outbuilding, alterations to fenestration openings at lower ground level, replacement fenestrations, and other associated works. NAMELY; revisions to window openings at front lower ground floor level and addition of air bricks.

  Granted Amendments Loft or dormer Windows or glazing 11 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