17 Belgrave Square London SW1X 8PG

This site has had 15 applications since 2025: 2 approved, 0 refused.

• 26/05327/ADLBC Decided

  17 Belgrave Square London SW1X 8PG

  Details of windows, doors, garage doors, roof lantern and new lighting and flooring in the principal rooms pursuant to condition 6 of listed building consent dated 18 August 2025 (RN: 25/03417/LBC)

  Submitted 6 Aug 2026
• 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)

  Submitted 20 Jul 2026 Conditions
• 26/04761/ADFULL Awaiting decision

  17 Belgrave Square London SW1X 8PG

  Detailed drawings of windows, doors, garage doors, which should appear as side hung, not up and over and roof Lantern pursuant to condition 6 of planning permission dated 13th December 2019 (RN:18/01324).

  Submitted 16 Jul 2026
• 26/04710/ADFULL Decided

  17 Belgrave Square London SW1X 8PG

  Details of secure cycle storage and details of how waste and recycling is going to be stored on the site pursuant to condition 16 and 19 of planning permission dated 13th December 2019 (RN:18/01324/FULL)

  Submitted 14 Jul 2026
• 26/03541/ADLBC Awaiting decision

  17 Belgrave Square London SW1X 8PG

  Detailed drawing of floor build-up of the underfloor heating system; pursuant to condition 12 of Listed building consent dated 30th May 2025 (RN 25/02106/LBC)

  Submitted 29 May 2026 Conditions
• 26/03052/ADFULL Awaiting decision

  17 Belgrave Square London SW1X 8PG

  Detailed drawings showing the roof top acoustic enclosure shall be painted light grey pursuant to condition 6 of planning permission dated 18th August 2025 (RN:25/03416/FULL)

  Submitted 8 May 2026 Full applications
• 26/03058/ADLBC Awaiting decision

  17 Belgrave Square London SW1X 8PG

  Detailed drawings showing the roof top acoustic enclosure shall be painted light grey pursuant to condition 12 of planning permission dated 18th August 2025 (RN:25/03417/LBC )

  Submitted 8 May 2026 Conditions
• 26/03059/ADLBC Awaiting decision

  17 Belgrave Square London SW1X 8PG

  detailed drawings at a scale of 1:10 and sections at 1:5 of Windows, Doors, Garage Doors, which should appear as side hung, not up and over; Roof Lantern and any new lighting and flooring in the principal rooms pursuant to discharge of condition 6 of listed building consent dated 21st August 2025 (RN: 25, 03417/LBC).

  Submitted 8 May 2026 Conditions
• 26/03054/FULL Awaiting decision

  17 Belgrave Square London SW1X 8PG

  Reconfiguration and alteration of the area between the main building and the Mews, including the erection of a pergola structure, alterations to the rear annex openings, updated rear garden layout.

  Submitted 8 May 2026 Full applications
• 26/03051/LBC Awaiting decision

  17 Belgrave Square London SW1X 8PG

  Removal of Condition 10 of listed building consent dated 18th August 2025 (RN:25/03417/LBC) for: Replacement and erection of five air condenser units within acoustic enclosure on main roof of 17 Belgrave Square, two new air condenser units within two separate enclosures on rear ground floor terrace to 17 Belgrave Mews West and internal air conditioning units. Internal and external alterations, including alteration to conservatory, internal layout changes, installation of underfloor heating system, and removal and replacement of floorboards, doors and MEP services namely, to remove the requirement to carry out a paint analysis of the principal rooms.

  Submitted 8 May 2026 Heritage and listed buildings

1. 26 Sep 2025

   Received by Westminster

2. 22 Oct 2025

   Validated

   Checked as complete and ready for consideration.

3. 18 Mar 2026

   Decision issued: Application Permitted

4. 21 Jul 2026

   Added to PlanIndex

• 25/06936/LBC Granted

  17 Belgrave Square London SW1X 8PG

  Part refurbishment, part replacement, of the existing windows on all elevations of the building at 17 Belgrave Square and adjacent mews at 17 Belgrave Mews West. (Linked with 25/06935/FULL)

  Decided 18 Mar 2026 Heritage and listed buildings

1 later application on the register refers to this one:

• 25/06936/LBC Granted

  17 Belgrave Square London SW1X 8PG

  Part refurbishment, part replacement, of the existing windows on all elevations of the building at 17 Belgrave Square and adjacent mews at 17 Belgrave Mews West. (Linked with 25/06935/FULL)

  Decided 18 Mar 2026 Heritage and listed buildings

Westminster granted permission on 18 March 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.

• 17 Belgrave Square London SW1X 8PG

  25/06936/LBC Submitted 26 Sep 2025 0m away

  Part refurbishment, part replacement, of the existing windows on all elevations of the building at 17 Belgrave Square and adjacent mews at 17 Belgrave Mews West. (Linked with 25/06935/FULL)

  Granted Heritage and listed buildings Windows or glazing 153 docs

• 17 Belgrave Square London SW1X 8PG

  26/03541/ADLBC Submitted 29 May 2026 1m away

  91% historically approved · decision due ~24 Jul

  Detailed drawing of floor build-up of the underfloor heating system; pursuant to condition 12 of Listed building consent dated 30th May 2025 (RN 25/02106/LBC)

  Awaiting decision Conditions 3 docs

• 17 Belgrave Square London SW1X 8PG

  26/03054/FULL Submitted 8 May 2026 6m away

  87% historically approved · decision due ~10 Jul

  Reconfiguration and alteration of the area between the main building and the Mews, including the erection of a pergola structure, alterations to the rear annex openings, updated rear garden layout.

  Awaiting decision Full applications 51 docs

• 17 Belgrave Square London SW1X 8PG

  26/03051/LBC Submitted 8 May 2026 6m away

  90% historically approved · decision due ~3 Jul

  Removal of Condition 10 of listed building consent dated 18th August 2025 (RN:25/03417/LBC) for: Replacement and erection of five air condenser units within acoustic enclosure on main roof of 17 Belgrave Square, two new air condenser units within two separate enclosures on rear ground floor terrace to 17 Belgrave Mews West and internal air conditioning units. Internal and external alterations, including alteration to conservatory, internal layout changes, installation of underfloor heating system, and removal and replacement of floorboards, doors and MEP services namely, to remove the requirement to carry out a paint analysis of the principal rooms.

  Awaiting decision Heritage and listed buildings Extension 6 docs

• 18 Belgrave Mews West London SW1X 8PX

  26/01147/LBC Submitted 24 Feb 2026 17m away

  90% historically approved · decision due ~3 Jun

  Repainting and stucco render repair to front façade of 18 Belgrave Square, installation of replacement EWI render system of rear elevation (18 Belgrave Mews West) and courtyard facing elevations, replacement of external venetian blinds and installation of powder coated aluminium over cills to existing concrete cills (site includes 18 Belgrave Mews)

  Awaiting decision Heritage and listed buildings 19 docs

• Open Space Belgrave Square London SW1X 8PS

  26/00605/TPO Submitted 3 Feb 2026 19m away

  100% historically approved · decision due ~31 Mar

  T4477 - Laburnum anagyroides: Remove faulted stem(s) - declining, bark damaged stem with dead top, to prevent continued decline causing instability and failure onto the garden footpath. See images.

  Awaiting decision Trees 9 docs

• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront.

  15 Sep 2026 Full applications
• 26/06297/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Alterations to rear elevation at basement level.

  15 Sep 2026 Full applications
• 26/06234/FULL Awaiting decision

  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))

  11 Sep 2026 Full applications
• 26/06249/FULL Awaiting decision

  53 Wimpole Street London W1G 8YH

  Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06250/LBC)

  11 Sep 2026 Full applications
• 26/03576/FULL Decided

  15A Devonshire Terrace London W2 3DW

  Erection of an infill extension to basement courtyard to form new bedroom and internal alterations. (Linked with 26/03577/LBC)

  1 Jun 2026 Full applications