3 Chester Square Mews London SW1W 9DS

This site has had 2 applications since 2026.

• 26/03240/ADLBC Awaiting decision

  3 Chester Square Mews London SW1W 9DS

  Detailed drawings of construction and window details of the new dormers to the mews; new garage doors; and New window and door to the ground floor mews elevation pursuant to conditon 4, a, b, c of listed building consent dated 22nd January 2025 (RN 24/08101/LBC)

  Submitted 18 May 2026 Conditions

1. 18 May 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 13 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 64 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 89 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.

• 3 Chester Square Mews London SW1W 9DS

  26/03240/ADLBC Submitted 18 May 2026 0m away

  91% historically approved · decision due ~13 Jul

  Detailed drawings of construction and window details of the new dormers to the mews; new garage doors; and New window and door to the ground floor mews elevation pursuant to conditon 4, a, b, c of listed building consent dated 22nd January 2025 (RN 24/08101/LBC)

  Awaiting decision Conditions Loft or dormer Windows or glazing 10 docs

• 81 Chester Square London SW1W 9DP

  23/04554/CLOPUD Submitted 4 Jul 2023 10m away

  Re-routing soil pipe within lower ground floor ceiling; creation of a new bulkhead to contain soil pipe and ventilation pipes internally; and new opening in the facade for soil pipe to exit the building.

  Granted Lawful development 11 docs

• 79 Chester Square London SW1W 9DU

  26/02993/ADFULL Submitted 7 May 2026 21m away

  87% historically approved · decision due ~2 Jul

  Details of new interior, which must be appropriate to the period of the building and their location; pursuant to condition 5 (part iii) of planning permission dated 5th January 2023 (RN 22/05927/FULL)

  Awaiting decision Full applications 4 docs

• 33 Lower Belgrave Street London SW1W 0LS

  26/04617/FULL Submitted 10 Jul 2026 23m away

  87% historically approved · decision due ~4 Sep

  Replacement front, rear and side elevation windows with double glazed timber sashes and main entrance door with solid timber door with double glazed fan light.

  Decided Full applications Windows or glazing

• 33 Lower Belgrave Street London SW1W 0LS

  25/07453/FULL Submitted 15 Oct 2025 29m away

  Removal of a rear window between ground and first floor level. (Retrospective)

  Granted Full applications Windows or glazing 27 docs

• 77 Chester Square London SW1W 9DY

  25/05160/TCA Submitted 24 Jul 2025 32m away

  1 x London plane T1: Cut back selected branches to suitable branch junctions to provide up to 2 m clearance from built structures. Remove advanced epicormic trunk growth. Tip thin small diameter branches only by 10 to 15% to leave an even canopy density. 1 x London plane T2: Tip thin regrowth from previous reduction points by 10 to 15% to leave an even canopy density (small diameter branches only). 1 x London plane T3: Crown lift by two metres. Cut back selected branches to suitable branch junctions to provide up to 2 m clearance from built structures. Crown thin small diameter branches only by 10 to 15% to leave an even canopy density. 1 x London plane T4: Crown lift by two metres. Cut back selected branches to suitable branch junctions to provide up to 2 m clearance from built structures. Crown thin small diameter branches only by 10 to 15% to leave an even canopy density. 1 x London plane T5: Remove branch overhanging garden and emanating from trunk at about 10m above ground level. Crown lift by two metres. Cut back selected branches to suitable branch junctions to provide up to 2 m clearance from built structures. Crown thin small diameter branches only by 10 to 15% to leave an even canopy density. 1 x evergreen Magnolia T6: Reduce height and lateral spread over garden by up to 1m to create a more compact and conical shape. Prune back selected branches from elevation of house to create clearance of up to 0.5m.

  Granted Trees 2 docs

• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront.

  15 Sep 2026 Full applications
• 26/06297/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Alterations to rear elevation at basement level.

  15 Sep 2026 Full applications
• 26/03576/FULL Decided

  15A Devonshire Terrace London W2 3DW

  Erection of an infill extension to basement courtyard to form new bedroom and internal alterations. (Linked with 26/03577/LBC)

  1 Jun 2026 Full applications
• 26/06202/FULL Awaiting decision

  106 Blandford Street London W1U 8AG

  Installation of two roof-mounted anchor posts. (Linked to 26/06203/LBC)

  10 Sep 2026 Full applications
• 26/04986/FULL Decided

  Inver Court Inverness Terrace London W2 6JB

  Replacement of combustible materials in the render facades; timber decking and plastic soffits/ fascias to terraces with non-combustible materials on the 5th and 6th floors.

  24 Jul 2026 Full applications