25 Belgrave Square London SW1X 8QD

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

• 26/01361/ADFULL Awaiting decision

  25 Belgrave Square London SW1X 8QD

  Details of all new windows pursuant to Condition 4 (part) of planning permission dated 12 February 2025 (RN: 24/06912/FULL)

  Submitted 3 Mar 2026 Full applications
• 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 condition discharge and variation applications in a median of 84 days. More in our guide to how long planning decisions take.

This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. 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

  26/01361/ADFULL Submitted 3 Mar 2026 50 yards away

  88% historically approved · decision due ~28 Apr

  Details of all new windows pursuant to Condition 4 (part) of planning permission dated 12 February 2025 (RN: 24/06912/FULL)

  Awaiting decision Full applications Windows or glazing 4 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

• 26/02704/ADLBC Decided

  New Zealand House 80 Haymarket London SW1Y 4TE

  Details of new visible security fixtures in the Royal Opera Arcade pursuant to condition 7(f) of listed building consent dated 12th February 2021 (RN: 19/07816/LBC). Linked to 26/02618/ADFULL

  Received 21 Apr, published by the council 21 Jul 2026 Conditions
• 26/04860/ADLBC Granted

  New Zealand House 80 Haymarket London SW1Y 4TE

  Details of external and internal signage strategy pursuant to Condition 7(E) of listed building consent dated 12th February 2021 (RN: 19/07816/LBC)

  Received 20 Jul, published by the council 1 Aug 2026 Conditions
• 26/04843/ADLBC Granted

  New Zealand House 80 Haymarket London SW1Y 4TE

  Detailed design and specification of new blinds to NZH based on mock-up trials on-site pursuant to Condition 6(m) of listed building consent dated 12th February 2021 (19/07816/LBC).

  Received 20 Jul, published by the council 1 Aug 2026 Conditions
• 26/04850/ADLBC Awaiting decision

  17 Belgrave Square London SW1X 8PG

  Detailed drawings of garage doors, roof lantern and any new lighting and flooring in the principal rooms pursuant to condition 6 (iii) (iv) (v) of listed building 18th August 2025 (RN:25/03417/LBC)

  Received 20 Jul, published by the council 1 Aug 2026 Conditions
• 25/07120/ADLBC Granted

  72 - 74 Lancaster Gate London W2 3NH

  Details of new and altered doors and door architraves, including external faces of lifts (detailed elevations and sections at 1:10) pursuant to Condition 3 (A) of Listed Building Consent dated 14 December 2023 (RN: 23/00772/LBC) (Linked app: 25/07088/ADFULL)

  Received 2 Oct, published by the council 21 Jul 2026 Conditions