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Planning application

Flat 5 6 West Halkin Street London SW1X 8JA

Granted Westminster 25/08070/LBC Listed Building Consent Application

Works: Windows or glazing

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

Proposal

Alterations to existing flat roof at rear third floor level to form a roof terrace, raising of the parapet, installation of decking and replacement of window with a door at rear third floor level.

As published by the council, reference 25/08070/LBC

Application record

Reference
25/08070/LBC
Type
Listed Building Consent Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
5 Nov 2025
Validated
17 Nov 2025
Decided
12 Mar 2026
Ward
Knightsbridge & Belgravia
Decision by
Delegated Decision
Postcode
SW1X 8JA

Site history

Applications at this address on the Westminster register

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

  • 25/08069/FULL Granted

    Flat 5 6 West Halkin Street London SW1X 8JA

    Alterations to existing flat roof at rear third floor level to form a roof terrace, raising of the parapet, installation of decking and replacement of window with a door at rear third floor level.

    Decided 12 Mar 2026 Full applications

Timeline

Dates from the published record

  1. 5 Nov 2025

    Received by Westminster

  2. 17 Nov 2025

    Validated

    Checked as complete and ready for consideration.

  3. 12 Mar 2026

    Decision issued: Application Permitted

  4. 21 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Studio Act Agent

3 applications on PlanIndex

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

28 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 12 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.

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 0.3 miles

  • Flat 5 6 West Halkin Street London SW1X 8JA

    25/08069/FULL Submitted 5 Nov 2025 50 yards away

    Alterations to existing flat roof at rear third floor level to form a roof terrace, raising of the parapet, installation of decking and replacement of window with a door at rear third floor level.

    Granted Full applications Windows or glazing 33 docs

  • 8 West Halkin Street London SW1X 8JE

    06/09800/ADV Submitted 6 Dec 2006 50 yards away

    Display of one illuminated ATM header panel and one non-illuminated ATM panel.

    Granted Advertising 6 docs

  • Payphone Outside 8 West Halkin Street London SW1X 8JE

    12/01103/ADV Submitted 6 Feb 2012 50 yards away

    Single sided vinyl advert measuring 704mm x 1800mm attached to one glazed face of payphone located outside Barclays Bank at 8 West Halkin Street.

    Refused Advertising Windows or glazing 8 docs

  • 8 West Halkin Street London SW1X 8JE

    06/04141/FULL Submitted 30 May 2006 50 yards away

    Installation of an ATM cashpoint machine.

    Granted Full applications 5 docs

  • 11A West Halkin Street London SW1X 8JL

    25/07306/TELNOT Submitted 26 Sep 2025 50 yards away

    Regulation 5 Notice of Intention to Install Fixed Line Broadband Apparatus to a Listed Building.

    Decided Telecoms

  • 3 West Halkin Street London SW1X 8JJ

    26/04464/FULL Submitted 6 Jul 2026 50 yards away

    88% historically approved · decision due ~31 Aug

    Alterations to roof to provide a sunken plant room on the fifth floor attic space. (Linked with 26/04465/LBC)

    Awaiting decision Full applications 20 docs

In Westminster

  • 26/07529/LBC Awaiting decision

    69 Eaton Place London SW1X 8DF

    Installation of new cast iron water supply pipe on rear courtyard elevation. (Linked with 26/07528/FULL)

    Received 5 Nov, published by the council 6 Nov 2026 Heritage and listed buildings
  • 26/07509/LBC Awaiting decision

    Buckingham Palace The Mall London SW1A 1AA

    Replacement of existing security lighting to the Buckingham Palace Forecourt with 80 compact LED spotlights installed within the lantern clusters across 10 principal piers, with associated concealed cabling and reversible fixings. (Linked with 26/07508/FULL)

    Received 4 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
  • 26/07473/LBC Awaiting decision

    Flat 3 82 New Cavendish Street London W1G 9TA

    Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07472/FULL)

    Received 3 Nov, published by the council 6 Nov 2026 Heritage and listed buildings
  • 26/07471/LBC Awaiting decision

    12 Queen Anne's Gate London SW1H 9AA

    Excavation of single-storey basement, internal reconfiguration and installation of modern services. (Linked with 26/07470/FULL)

    Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
  • 26/07461/LBC Awaiting decision

    1 Savile Row London W1S 3JR

    Minor internal works comprising redecoration and upgrades to lighting, flooring and bathroom and kitchen facilities, together with external works including new lighting and signage.

    Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings