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Planning application

Flat 3 6 Upper Belgrave Street London SW1X 8BD

Awaiting decision Westminster 26/04336/LBC Listed Building Consent Application

Relates to 26/04335/FULL

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

Proposal

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)

As published by the council, reference 26/04336/LBC

Application record

Reference
26/04336/LBC
Type
Listed Building Consent Application
Status
Pending
Received
1 Jul 2026
Validated
9 Jul 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: 1 approved, 3 refused.

  • 26/04335/FULL Awaiting decision

    Flat 3 6 Upper Belgrave Street London SW1X 8BD

    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)

    Submitted 1 Jul 2026 Full applications
  • 26/00423/LBC Granted

    Flat 3 6 Upper Belgrave Street London SW1X 8BD

    Interior fit out to the third and fourth floors.

    Decided 16 Mar 2026 Heritage and listed buildings
  • 25/06556/LBC Refused

    Flat 3 6 Upper Belgrave Street London SW1X 8BD

    Internal alterations and creation of new en-suite bathroom at fourth floor level.

    Decided 6 Oct 2025 Heritage and listed buildings
  • 25/06479/LBC Refused

    Flat 3 6 Upper Belgrave Street London SW1X 8BD

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

    Decided 13 Feb 2026 Heritage and listed buildings
  • 25/06478/FULL Refused

    Flat 3 6 Upper Belgrave Street London SW1X 8BD

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

    Decided 13 Feb 2026 Full applications

Timeline

Dates from the published record

  1. 1 Jul 2026

    Received by Westminster

  2. 9 Jul 2026

    Validated

    Checked as complete and ready for consideration.

  3. 21 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 3 September 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.

Cases linked to this one on the register

  • 26/04335/FULL Awaiting decision

    Flat 3 6 Upper Belgrave Street London SW1X 8BD

    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)

    Submitted 1 Jul 2026 Full applications

1 later application on the register refers to this one:

  • 26/04335/FULL Awaiting decision

    Flat 3 6 Upper Belgrave Street London SW1X 8BD

    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)

    Submitted 1 Jul 2026 Full applications

Who's behind it

Company information only, from the register and Companies House

ADL Planning Pty Ltd Agent, a planning consultancy

100 applications on PlanIndex · across 7 councils · 92% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

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

32 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 heritage and listed building applications in a median of 93 days. More in our guide to how long planning decisions take.

About heritage and listed building applications

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • Flat 3 6 Upper Belgrave Street London SW1X 8BD

    26/04335/FULL Submitted 1 Jul 2026 0m 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 2m 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

  • Flat 3 6 Upper Belgrave Street London SW1X 8BD

    25/06478/FULL Submitted 10 Sep 2025 2m away

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

    Refused Full applications Windows or glazing 25 docs

  • Flat 3 6 Upper Belgrave Street London SW1X 8BD

    25/06556/LBC Submitted 12 Sep 2025 4m away

    Internal alterations and creation of new en-suite bathroom at fourth floor level.

    Refused Heritage and listed buildings 24 docs

  • 6 Upper Belgrave Street London SW1X 8BD

    26/00402/LBC Submitted 23 Jan 2026 4m away

    Interior fit out to the fourth floor of a new ensuite shower room and new stud walls.

    Granted Heritage and listed buildings 17 docs

  • Flat 3 6 Upper Belgrave Street London SW1X 8BD

    26/00423/LBC Submitted 23 Jan 2026 4m away

    Interior fit out to the third and fourth floors.

    Granted Heritage and listed buildings 20 docs

In Westminster

  • 26/06250/LBC 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 26/06249/FULL)

    11 Sep 2026 Heritage and listed buildings
  • 26/06203/LBC Awaiting decision

    106 Blandford Street London W1U 8AG

    Installation of two roof-mounted anchor posts. (Linked to 26/06202/FULL)

    10 Sep 2026 Heritage and listed buildings
  • 26/06187/LBC Awaiting decision

    4 Shepherd Market London W1J 7QB

    Installation of wall mounted highway street light on to the facade of 4 Shepherd Market.

    10 Sep 2026 Heritage and listed buildings
  • 26/06216/LBC Awaiting decision

    208 Regent Street London W1B 5BD

    Strip-out of existing, modern retail unit fixtures, fittings, stair and services, with retention of heritage and listed features, including shopfront and entrances, and ground floor ceiling details and features. Fit-out of new retail fittings, fixtures and services. Retention of shopfront with new 'like-for-like' signage and a new flag pole.

    10 Sep 2026 Heritage and listed buildings
  • 26/06176/LBC Awaiting decision

    46 Gloucester Place London W1U 8HG

    Installation of 1,100 mm high protective railings along the existing roof-level access walkway. (Linked to 26/06178/FULL)

    9 Sep 2026 Heritage and listed buildings