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Planning application

1 - 2 Upper Belgrave Street London SW1X 8BD

Awaiting decision Westminster 26/02453/ADLBC Approval of Details (ADLBC)

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 samples of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 5 of listed building dated 16th December 2022 (RN:22/06851/LBC)

As published by the council, reference 26/02453/ADLBC

Application record

Reference
26/02453/ADLBC
Type
Approval of Details (ADLBC)
Status
Pending
Received
10 Apr 2026
Validated
17 Apr 2026
Ward
Knightsbridge & Belgravia
Postcode
SW1X 8BD

Site history

Applications at this address on the Westminster register

This site has had 6 applications since 2025: 2 approved, 0 refused.

  • 26/02374/ADFULL Awaiting decision

    1 - 2 Upper Belgrave Street London SW1X 8BD

    Samples of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to Condition 5 (partial - timber cladding to rear of the mews and garage door) of planning permission dated 24 June 2021 (RN:20/07236/FULL).

    Submitted 10 Apr 2026 Full applications
  • 25/08329/FULL Awaiting decision

    1 - 2 Upper Belgrave Street London SW1X 8BD

    Variation of Condition 18 of planning permission dated 24 June 2021 (RN: 20/07236/FULL) as amended by non-material amendments dated 10 November 2025 (RN: 25/06646/NMA), 03 January 2024(RN: 23/07896/NMA) and 08 December 2022 (RN: 22/06835/NMA) for: Use of the existing buildings to create two dwelling houses with extensions including demolition and rebuilding of the mews building and excavation to extend the existing basement, installation of air conditioning units on the roof of 1 Upper Belgrave Street and vaults of 1 and 2 Upper Belgrave Street, and associated alterations. (Site includes 1 Groom Place) namely, to alter the wording to allow a change in colour to the pipework.

    Submitted 13 Nov 2025 Full applications
  • 25/08330/LBC Awaiting decision

    1 - 2 Upper Belgrave Street London SW1X 8BD

    Variation of Condition 3 of listed building consent dated 10 November 2025 (RN:25/06644/LBC) for Introduction of additional external pipework namely, to alter the wording to allow a change in colour to the pipework.

    Submitted 13 Nov 2025 Heritage and listed buildings
  • 25/06646/NMA Granted

    1 - 2 Upper Belgrave Street London SW1X 8BD

    Amendments to planning permission dated 24 June 2021 (RN: 20/07236/FULL) for: Use of the existing buildings to create two dwelling houses with extensions including demolition and rebuilding of the mews building and excavation to extend the existing basement, installation of air conditioning units on the roof of 1 Upper Belgrave Street and vaults of 1 and 2 Upper Belgrave Street, and associated alterations. (Site includes 1 Groom Place) namely, to allow the introduction of additional external pipework.

    Decided 10 Nov 2025 Amendments
  • 25/06644/LBC Granted

    1 - 2 Upper Belgrave Street London SW1X 8BD

    Introduction of additional external pipework.

    Decided 10 Nov 2025 Heritage and listed buildings

Timeline

Dates from the published record

  1. 10 Apr 2026

    Received by Westminster

  2. 17 Apr 2026

    Validated

    Checked as complete and ready for consideration.

  3. 21 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 12 June 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 65 days over the applications it decided in the last year.

Documents

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

9 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.

Trade members open them from here.

Open the documents

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 condition discharge and variation applications in a median of 43 days. More in our guide to how long planning decisions take.

About condition discharge and variation applications

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.

Nearby applications

Within 500 metres

  • 1 - 2 Upper Belgrave Street London SW1X 8BD

    26/02374/ADFULL Submitted 10 Apr 2026 0m away

    87% historically approved · decision due ~12 Jun

    Samples of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to Condition 5 (partial - timber cladding to rear of the mews and garage door) of planning permission dated 24 June 2021 (RN:20/07236/FULL).

    Awaiting decision Full applications Windows or glazing 9 docs
  • 5 Upper Belgrave Street London SW1X 8BD

    25/02229/LBC Submitted 2 Apr 2025 2m away

    Excavation of two basements, one beneath the main house and one beneath the mews house, with associated plant, and the addition of louvres to mews elevation garage doors and internal works.

    Granted Heritage and listed buildings 47 docs
  • 5 Upper Belgrave Street London SW1X 8BD

    25/02228/FULL Submitted 2 Apr 2025 2m away

    Excavation of two basements, one beneath the main house and one beneath the mews house, with associated plant, and the addition of louvres to mews garage doors.

    Refused Full applications 72 docs
  • Flat 3 6 Upper Belgrave Street London SW1X 8BD

    26/04336/LBC Submitted 1 Jul 2026 6m away

    90% historically approved · decision due ~3 Sep

    Replacement of the existing condenser and acoustic enclosure with a new unit and enclosure in the same location along with internal alterations to the third and fourth floor maisonette. (Linked with 26/04335/FULL)

    Awaiting decision Heritage and listed buildings 32 docs
  • Flat 3 6 Upper Belgrave Street London SW1X 8BD

    26/04335/FULL Submitted 1 Jul 2026 6m away

    87% historically approved · decision due ~3 Sep

    Replacement of the existing condenser and acoustic enclosure with a new unit and enclosure in the same location along with internal alterations to the third and fourth floor maisonette. (Linked with 26/04336/LBC)

    Awaiting decision Full applications 33 docs
  • Flat 3 6 Upper Belgrave Street London SW1X 8BD

    25/06479/LBC Submitted 10 Sep 2025 7m away

    Replacement of a window with timber French doors with new balcony at rear third floor level.

    Refused Heritage and listed buildings Windows or glazing 23 docs

In Westminster

  • 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)

    20 Jul 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).

    20 Jul 2026 Conditions
  • 26/05026/ADLBC Awaiting decision

    St James's Park The Mall London SW1A 1AA

    Details of method statement for re-carving works pursuant to condition 3(i) of listed building consent dated 16 July 2026 (RN: 26/03399/LBC)

    27 Jul 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)

    20 Jul 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)

    2 Oct 2025 Conditions