9 Chester Square Mews London SW1W 9DS

1. 18 May 2023

   Received by Westminster

2. 31 May 2023

   Validated

   Checked as complete and ready for consideration.

3. 17 Jul 2023

   Decision issued: Application Withdrawn

4. 2 Oct 2026

   Added to PlanIndex

The applicant withdrew this application before Westminster decided it, and is free to submit a revised scheme at any time. More in our guide to what happens after a planning decision.

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 50 yards away

  89% 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

• 3 Chester Square Mews London SW1W 9DS

  26/03261/ADFULL Submitted 18 May 2026 50 yards away

  88% historically approved · decision due ~13 Jul

  Details showing the provision of electric vehicle charging facilities, available for use within the garage, detailed drawings (elevations and sections at a scale of 1:10 or 1:20) of the 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 and details of how waste is to be stored on site and how materials for recycling will be stored separately pursuant to condition 4, 8 and 9 of planning permission dated 23rd January 2025 (RN:24/08100/FULL)

  Awaiting decision Full applications Loft or dormer Windows or glazing 11 docs

• 81 Chester Square London SW1W 9DP

  23/04554/CLOPUD Submitted 4 Jul 2023 50 yards 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 50 yards away

  88% 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 50 yards away

  88% 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 50 yards away

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

  Granted Full applications Windows or glazing 27 docs

• 26/05984/FULL Decided

  41 Sutherland Street London SW1V 4JX

  Replacement of front, side and rear windows with double glazed timber framed sash windows and replacement of a door with a double glazed timber framed door.

  Received 2 Sep, published by the council 11 Sep 2026 Full applications
• 26/07229/FULL Awaiting decision

  5 D'arblay Street London W1F 8DL

  Alterations to the existing fixed windows to form two openable sash windows. (Linked with 26/07230/ADV)

  Received 22 Oct, published by the council 26 Oct 2026 Full applications
• 26/07224/FULL Awaiting decision

  8 Hinde Street London W1U 3BQ

  Use of the building as an Embassy (sui generis) with reversion to Class E on cessation of occupation by the Government of the United Mexican States. Erection of a flagpole to front elevation.

  Received 22 Oct, published by the council 26 Oct 2026 Full applications
• 26/06134/FULL Decided

  Flat 10H Hyde Park Mansions Cabbell Street London NW1 5BG

  Replacement of front and rear second floor level windows with slim-profile double-glazed panels, retaining the existing window and door frames.

  Received 8 Sep, published by the council 15 Sep 2026 Full applications
• 26/07258/FULL Awaiting decision

  16A Croxley Road London W9 3HL

  Installation of air to air heat pumps to offices and bedrooms.

  Received 22 Oct, published by the council 23 Oct 2026 Full applications