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Planning application

12 Upper Belgrave Street London SW1X 8BA

Awaiting decision Westminster 23/07885/ADFULL Approval of Details (Full PP)

Works: Windows or glazing

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Details of works to existing ground floor windows including methodology pursuant to Condition 7(ii) of planning permission dated 31 August 2023 (RN: 23/01615/FULL). [Linked to 23/08033/ADLBC]

As published by the council, reference 23/07885/ADFULL

Application record

Reference
23/07885/ADFULL
Type
Approval of Details (Full PP)
Status
Pending
Received
14 Nov 2023
Validated
14 Nov 2023
Ward
Knightsbridge & Belgravia
Postcode
SW1X 8BA

Site history

Applications at this address on the Westminster register

This site has had 17 applications since 2023: 8 approved, 0 refused.

  • 25/09268/ADFULL Granted

    12 Upper Belgrave Street London SW1X 8BA

    Detailed drawings and sections of all new metal balustrades, roof access ladders and metal divider to balcony at first floor level pursuant to condition 7(viii) of planning permission dated 31st August 2023 (RN: 23/01615/FULL)

    Decided 20 Jan 2026 Full applications
  • 25/09261/ADLBC Granted

    12 Upper Belgrave Street London SW1X 8BA

    Detailed drawings and sections of all new metal balustrades, roof access ladders and metal divider to balcony at first floor level pursuant to condition 5(viii) of listed building dated 31st August 2023 (RN:23/01616/LBC)

    Decided 20 Jan 2026 Conditions
  • 25/09276/LBC Granted

    12 Upper Belgrave Street London SW1X 8BA

    Cladding of the treads and risers of the secondary stair in timber and replacement of existing door reveal between the main stair and the dining room with a traditional panelled timber reveal at first floor level.

    Decided 2 Feb 2026 Heritage and listed buildings
  • 25/04975/ADFULL Granted

    12 Upper Belgrave Street London SW1X 8BA

    Details of door sets under entrance bridge pursuant to condition 7 (v) of planning permission dated 31 August 2023 (RN: 23/01615/FULL).

    Decided 1 Aug 2025 Full applications
  • 25/04872/ADLBC Granted

    12 Upper Belgrave Street London SW1X 8BA

    Details of door sets under entrance bridge pursuant to condition 5 (v) of listed building consent dated 31 August 2023 (RN: 23/01616/LBC).

    Decided 1 Aug 2025 Conditions
  • 25/03694/ADFULL Granted

    12 Upper Belgrave Street London SW1X 8BA

    Details of plant housing, acoustic enclosure and lift overrun (specifying materials and finished appearance for each element) pursuant to Condition 7 (vii) of planning permission dated 31 August 2023 (RN: 23/01615/FULL).

    Decided 13 Jun 2025 Full applications
  • 25/03635/ADLBC Awaiting decision

    12 Upper Belgrave Street London SW1X 8BA

    Details of plant housing, acoustic enclosure and lift overrun (specifying materials and finished appearance for each element) pursuant to condition 5 (vii) of listed building consent dated 31 August 2023 (RN: 23/0161/LBC).

    Submitted 29 May 2025 Conditions
  • 25/03653/ADLBC Awaiting decision

    12 Upper Belgrave Street London SW1X 8BA

    Details of main roof lantern pursuant to Condition 5 (iii) of planning permission dated 31 August 2023 (RN23/01616/LBC)

    Submitted 29 May 2025 Conditions
  • 25/03634/ADLBC Awaiting decision

    12 Upper Belgrave Street London SW1X 8BA

    Details of painted metal glazed screen to lobby (at 1:10, sections at 1:5).pursuant to condition 4(vi) of listed building dated 15 February 2024 (RN:23/03033/LBC).

    Submitted 29 May 2025 Conditions
  • 24/05356/ADFULL Awaiting decision

    12 Upper Belgrave Street London SW1X 8BA

    Details of sliding rooflight pursuant Condition 7 ( part iv) of planning permission dated 31 August 2023 (RN: 23/01615/FULL).

    Submitted 6 Aug 2024 Full applications

Timeline

Dates from the published record

  1. 14 Nov 2023

    Received by Westminster

  2. 29 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 9 January 2024, 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 61 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Agent on file

323 applications on PlanIndex · across 34 councils · 87% granted

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Documents

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

5 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 happens while it is decided

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 85 days. More in our guide to how long planning decisions take.

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

  • 12 Upper Belgrave Street London SW1X 8BA

    25/04975/ADFULL Submitted 17 Jul 2025 0m away

    Details of door sets under entrance bridge pursuant to condition 7 (v) of planning permission dated 31 August 2023 (RN: 23/01615/FULL).

    Granted Full applications 9 docs

  • 13 Upper Belgrave Street London SW1X 8BA

    26/02241/LBC Submitted 2 Apr 2026 0m away

    90% historically approved · decision due ~28 May

    Installation of internal fan coil units.

    Awaiting decision Heritage and listed buildings 19 docs

  • 12 Upper Belgrave Street London SW1X 8BA

    25/04872/ADLBC Submitted 15 Jul 2025 0m away

    Details of door sets under entrance bridge pursuant to condition 5 (v) of listed building consent dated 31 August 2023 (RN: 23/01616/LBC).

    Granted Conditions 9 docs

  • 12 Upper Belgrave Street London SW1X 8BA

    25/03694/ADFULL Submitted 2 Jun 2025 0m away

    Details of plant housing, acoustic enclosure and lift overrun (specifying materials and finished appearance for each element) pursuant to Condition 7 (vii) of planning permission dated 31 August 2023 (RN: 23/01615/FULL).

    Granted Full applications 10 docs

  • 12 Upper Belgrave Street London SW1X 8BA

    25/03635/ADLBC Submitted 29 May 2025 0m away

    90% historically approved · decision due ~24 Jul

    Details of plant housing, acoustic enclosure and lift overrun (specifying materials and finished appearance for each element) pursuant to condition 5 (vii) of listed building consent dated 31 August 2023 (RN: 23/0161/LBC).

    Awaiting decision Conditions 7 docs

  • 12 Upper Belgrave Street London SW1X 8BA

    25/03653/ADLBC Submitted 29 May 2025 0m away

    90% historically approved · decision due ~24 Jul

    Details of main roof lantern pursuant to Condition 5 (iii) of planning permission dated 31 August 2023 (RN23/01616/LBC)

    Awaiting decision Conditions Windows or glazing 6 docs

In Westminster

  • 26/06024/FULL Awaiting decision

    House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA

    Installation of new and replacement electronic equipment within Speaker. (Linked with 26/06025/LBC)

    3 Sep 2026 Full applications
  • 26/06017/FULL Awaiting decision

    38 Lauderdale Mansions Lauderdale Road London W9 1NE

    Installation of an external AC Unit / Heat Pump at roof level.

    2 Sep 2026 Full applications
  • 26/05938/FULL Awaiting decision

    24 Vincent Square London SW1P 2NJ

    Subdivision of existing residential property to create two self-contained 3-bedroom family homes, along with cycle parking and associated external alterations.

    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