25 Belgrave Square London SW1X 8QD

This site has had 6 applications since 2010: 4 approved, 0 refused.

• 26/01353/ADLBC Awaiting decision

  25 Belgrave Square London SW1X 8QD

  Details of new windows and external doors pursuant to Condition 3 of listed building consent dated 12 February 2025 (RN: 24/06901/LBC)

  Submitted 3 Mar 2026 Conditions
• 25/03115/ADFULL Granted

  25 Belgrave Square London SW1X 8QD

  Detailed drawings of windows pursuant to condition 4 (part) of Planning Permission dated 12th February 2025 (RN: 24/06912/FULL) (Linked with RN 25/03146/ADLBC)

  Decided 17 Jun 2025 Full applications
• 12/03963/FULL Granted

  25 Belgrave Square London SW1X 8QD

  Installation of two fan coil units within an enclosure to the rear ground floor level. Internal alterations including the blocking up of a door to vaults at lower ground floor level and replacing door with a window and formation of a store and associated alterations at second floor level.

  Decided 16 Oct 2012 Full applications
• 12/04629/LBC Granted

  25 Belgrave Square London SW1X 8QD

  Installation of two fan coil units within an enclosure to the rear ground floor level. Internal alterations including the blocking up of a door to vaults at lower ground floor level and replacing door with a window and formation of a store and associated alterations at second floor level.

  Decided 16 Oct 2012 Heritage and listed buildings
• 10/02439/LBC Granted

  25 Belgrave Square London SW1X 8QD

  Alterations to lightwell including infill extension beneath access bridge, installation of disabled accessible lift with associated works to railings/gates, new fenestration; new skylight to rear extension. Internal alterations at lower ground, ground and second floors.

  Decided 11 May 2010 Heritage and listed buildings

1. 3 Mar 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 28 April 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.

• 25 Belgrave Square London SW1X 8QD

  25/03115/ADFULL Submitted 7 May 2025 50 yards away

  Detailed drawings of windows pursuant to condition 4 (part) of Planning Permission dated 12th February 2025 (RN: 24/06912/FULL) (Linked with RN 25/03146/ADLBC)

  Granted Full applications Windows or glazing 8 docs

• 25 Belgrave Square London SW1X 8QD

  26/01353/ADLBC Submitted 3 Mar 2026 50 yards away

  89% historically approved · decision due ~28 Apr

  Details of new windows and external doors pursuant to Condition 3 of listed building consent dated 12 February 2025 (RN: 24/06901/LBC)

  Awaiting decision Conditions Windows or glazing 3 docs

• 25 Belgrave Square London SW1X 8QD

  12/03963/FULL Submitted 19 Apr 2012 50 yards away

  Installation of two fan coil units within an enclosure to the rear ground floor level. Internal alterations including the blocking up of a door to vaults at lower ground floor level and replacing door with a window and formation of a store and associated alterations at second floor level.

  Granted Full applications Windows or glazing

• 25 Belgrave Square London SW1X 8QD

  12/04629/LBC Submitted 19 Apr 2012 50 yards away

  Installation of two fan coil units within an enclosure to the rear ground floor level. Internal alterations including the blocking up of a door to vaults at lower ground floor level and replacing door with a window and formation of a store and associated alterations at second floor level.

  Granted Heritage and listed buildings Windows or glazing

• 25 Belgrave Square London SW1X 8QD

  10/02439/LBC Submitted 16 Mar 2010 50 yards away

  Alterations to lightwell including infill extension beneath access bridge, installation of disabled accessible lift with associated works to railings/gates, new fenestration; new skylight to rear extension. Internal alterations at lower ground, ground and second floors.

  Granted Heritage and listed buildings Extension Windows or glazing 2 docs

• 1 - 3 Belgrave Mews South London SW1X 8BT

  25/07399/NMA Submitted 13 Oct 2025 50 yards away

  Amendments to planning permission dated 27th August 2024 (RN:24/03215/FULL) for: Demolition behind retained front facade and construction of replacement house including replacement rear extension and terrace at lower height with new shallow balcony at second floor level; replacement of the fenestration and the roof of the existing mansard to include inset PV panels and an enclosed plant deck; and reposition front door with shallower porch. NAMELY, to allow amendments to ground floor rear fenestration.

  Granted Amendments Extension Loft or dormer +2 4 docs
  Small domestic

• 26/06234/FULL Decided

  40 Grosvenor Place London SW1X 7HJ

  Use of lower ground floor of Unit 3 and ground floor of Unit 2 as gym (Class E(d)) and/ or office (Class E(g))

  Received 11 Sep, published by the council 18 Sep 2026 Full applications
• 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
• 26/07382/FULL Awaiting decision

  90 Gloucester Place London W1U 6HS

  Use of the building as an embassy (sui generis)

  Received 28 Oct, published by the council 2 Nov 2026 Full applications
• 26/07363/FULL Awaiting decision

  36 Kilravock Street London W10 4HX

  Demolition of existing rear/side extension and construction of a new extension together with new glazing and doors, and changing the existing rooflights to the rear roof slope with new rooflights.

  Received 28 Oct, published by the council 2 Nov 2026 Full applications
• 26/07371/FULL Awaiting decision

  8A Randolph Road London W9 1AN

  Amalgamation of two residential units with internal refurbishment and reconfiguration. (Linked with 26/07372/LBC)

  Received 28 Oct, published by the council 2 Nov 2026 Full applications