34 Grosvenor Square London W1K 2HD

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

• 26/03449/ADFULL Awaiting decision

  34 Grosvenor Square London W1K 2HD

  Details of new french doors pursuant to condition 4 of planning permission dated 17 March 2026 (RN: 25/08464/FULL)

  Submitted 26 May 2026 Full applications
• 25/08464/FULL Granted

  34 Grosvenor Square London W1K 2HD

  Replacement of existing ground floor windows, relocation of the entrance and installation of retractable canopies

  Decided 27 Mar 2026 Full applications

1. 17 Aug 2026

   Received by Westminster

2. 22 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 12 October 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 86 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.

• 34 Grosvenor Square London W1K 2HD

  26/03449/ADFULL Submitted 26 May 2026 50 yards away

  88% historically approved · decision due ~21 Jul

  Details of new french doors pursuant to condition 4 of planning permission dated 17 March 2026 (RN: 25/08464/FULL)

  Awaiting decision Full applications Windows or glazing 4 docs

• Flat 11 46 Upper Grosvenor Street London W1K 2NW

  26/01789/ADFULL Submitted 19 Mar 2026 50 yards away

  88% historically approved · decision due ~14 May

  Detailed drawings of existing and proposed windows with key details pursuant to condition 2 of planning permission dated 6th November 2025 (RN: 25/05340/FULL).

  Awaiting decision Full applications Windows or glazing 5 docs

• Flat 11 46 Upper Grosvenor Street London W1K 2NW

  26/04722/FULL Submitted 15 Jul 2026 50 yards away

  88% historically approved · decision due ~28 Sep

  Variation of Condition 2 of planning permission dated 06 November 2025 (RN: 25/05340/FULL) for: Replacement of existing windows namely; to allow replacement windows constructed in aluminium rather than the original mild steel of the Crittall casements.

  Awaiting decision Full applications Windows or glazing

• Flat 11 46 Upper Grosvenor Street London W1K 2NW

  25/05340/FULL Submitted 30 Jul 2025 50 yards away

  Replacement of existing windows. (Flat 11, 46 Upper Grosvenor Street)

  Granted Full applications Windows or glazing 37 docs

• 34 Grosvenor Square London W1K 2HD

  25/08464/FULL Submitted 19 Nov 2025 50 yards away

  Replacement of existing ground floor windows, relocation of the entrance and installation of retractable canopies

  Granted Full applications Windows or glazing 23 docs

• 30 Grosvenor Square London W1K 6AN

  26/00408/FULL Submitted 23 Jan 2026 50 yards away

  88% historically approved · decision due ~20 Mar

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

  Awaiting decision Full applications 13 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

  Painting of the shopfront facade and 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