49 Grosvenor Square London W1K 3EP

1. 21 Jan 2026

   Received by Westminster

2. 10 Apr 2026

   Decision issued: Application Permitted

3. 21 Jul 2026

   Added to PlanIndex

Westminster granted permission on 10 April 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.

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.

• 10 Carlos Place London W1K 3AT

  26/04607/FULL Submitted 10 Jul 2026 50 yards away

  88% historically approved · decision due ~4 Sep

  Installation of a new front door at No.10 Carlos Place.

  Decided Full applications

• 9 Carlos Place London W1K 3AT

  26/01853/FULL Submitted 20 Mar 2026 50 yards away

  88% historically approved · decision due ~27 May

  Internal and external alterations associated with a new shop fit-out at 9 Carlos Place, including a new entrance ramp, partial lowering of the internal floor level, installation of a platform lift and new stairs, creation of a new entrance lobby and lowering of the external entrance door.

  Awaiting decision Full applications 13 docs

• 11 Carlos Place London W1K 3AX

  11/10331/FULL Submitted 26 Oct 2011 50 yards away

  Installation of five air conditioning units in the rear enclosed courtyard basement area and the installation of intake and extract grilles within the rear elevation at basement level.

  Withdrawn Full applications 10 docs

• 9 - 10 Carlos Place London W1K 3AT

  08/05957/AD7 Submitted 8 Jul 2008 50 yards away

  Display for a temporary period of six months of a non-illuminated 'to let' board on the face of the building at street level and measuring 0.6m x 0.45m

  Granted Advertising 3 docs

• Flat 2 49 Grosvenor Square London W1K 3EP

  25/05833/FULL Submitted 18 Aug 2025 50 yards away

  Installation of two air condenser units at roof level and two ventilation grills in rear first floor windows.

  Granted Full applications Windows or glazing 32 docs

• 26 - 28 Mount Row London W1K 3SQ

  26/06570/FULL Submitted 24 Sep 2026 50 yards away

  88% historically approved · decision due ~19 Nov

  Rear extension to the building, including creation of balconies at first to fourth floor levels and a new roof terrace, external alterations to the building including new cladding to front and rear facades, together with internal reconfiguration and refurbishment, provision of end of trip facilities in place of basement car park, roof top plant equipment, and other associated works.

  Awaiting decision Full applications Extension Roofing

• 26/06015/FULL Decided

  129 Saltram Crescent London W9 3JT

  Erection of a two-storey rear extension.

  Received 3 Sep, published by the council 11 Sep 2026 Full applications
• 26/05689/FULL Decided

  Flat 1 12 Bristol Gardens London W9 2JG

  Demolition of an existing conservatory at the rear at lower ground level and erection of single storey rear extension.

  Received 19 Aug, published by the council 14 Sep 2026 Full applications
• 26/07361/FULL Awaiting decision

  29 Alexander Street London W2 5NU

  Change of the existing ground and lower ground floors from Use Class E(g)(i) (Commercial business and service) to Class C3 dwelling with the creation of a two-bedroom maisonette with associated external alterations.

  Received 27 Oct, published by the council 2 Nov 2026 Full applications
• 26/07360/FULL Awaiting decision

  11 Marylebone Mews London W1G 8PX

  Variation of condition 1 of planning permission dated 02 July 2026 (RN 26/00802/FULL) for the Erection of a mansard roof extension, excavation and extension of the existing basement, installation of plant within a louvered acoustic enclosure on the rear flat roof at second floor and the replacement of the fenestration to the front and rear of the building; all to enlarge and alter dwellinghouse (Class C3). NAMELY, amendments to layout in bedroom at the front of the floor plan where it would benefit from two of the windows that overlook the Mews, with the bathroom at the back of the mid-section of the floor plan with access to one of the wardrobe spaces.

  Received 27 Oct, published by the council 2 Nov 2026 Full applications
• 26/07340/FULL Awaiting decision

  123 Victoria Street London SW1E 6DE

  Installation of a single-leaf glazed entrance door at ground level to the Victoria Street frontage

  Received 27 Oct, published by the council 30 Oct 2026 Full applications