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Planning application

25 Belgrave Square London SW1X 8QD

Granted Westminster 25/03115/ADFULL Approval of Details (Full PP)

Works: Windows or glazing

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

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)

As published by the council, reference 25/03115/ADFULL

Application record

Reference
25/03115/ADFULL
Type
Approval of Details (Full PP)
Status
Decided
Decision
Application Permitted
Received
7 May 2025
Validated
4 Jun 2025
Decided
17 Jun 2025
Ward
Knightsbridge & Belgravia
Decision by
Delegated Decision
Postcode
SW1X 8QD

Site history

Applications at this address on the Westminster register

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
  • 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
  • 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

Timeline

Dates from the published record

  1. 7 May 2025

    Received by Westminster

  2. 4 Jun 2025

    Validated

    Checked as complete and ready for consideration.

  3. 17 Jun 2025

    Decision issued: Application Permitted

  4. 10 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Agent on file, registered in London

1,780 applications on PlanIndex · across 174 councils · 92% granted

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Documents

Plans, drawings, consultee responses and the officer's report

8 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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What this grant of permission means

Westminster granted permission on 17 June 2025, 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.

About full applications

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.

Nearby applications

Within 500 metres

  • 25 Belgrave Square London SW1X 8QD

    26/01361/ADFULL Submitted 3 Mar 2026 0m away

    87% 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

    26/01353/ADLBC Submitted 3 Mar 2026 0m away

    90% 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 0m 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 0m 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 0m 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 20m 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

In Westminster

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  • 26/06017/FULL Awaiting decision

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  • 26/05938/FULL Awaiting decision

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    1 Sep 2026 Full applications
  • 26/05935/FULL Awaiting decision

    47 Hereford Road London W2 5AH

    Installation of one number new external condenser unit to the southerly elevation service alley.

    1 Sep 2026 Full applications
  • 26/05959/FULL Awaiting decision

    Basement And Ground Floor 50 New Bond Street London W1S 1BJ

    Installation of three new condensers on the roof, within an existing designated plant area.

    1 Sep 2026 Full applications