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Planning application

11 - 12 William Street London SW1X 9HL

Awaiting decision Westminster 26/02237/FULL Full Planning Permission Application

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

Proposal

Minor internal works to lower floors and installation of part external goods lift. [Linked to 26/02238/LBC]

As published by the council, reference 26/02237/FULL

Application record

Reference
26/02237/FULL
Type
Full Planning Permission Application
Status
Pending
Received
2 Apr 2026
Validated
2 Apr 2026
Ward
Knightsbridge & Belgravia
Postcode
SW1X 9HL

Site history

Applications at this address on the Westminster register

This site has had 6 applications since 2026.

  • 26/06364/LBC Awaiting decision

    11 - 12 William Street London SW1X 9HL

    Refurbishment of existing shopfront, installation of retractable awnings, new fascia signage, illuminated menu box, replacement entrance steps and associated external alterations. (Linked to 26/06355/FULL and 26/06356/ADV)

    Submitted 17 Sep 2026 Heritage and listed buildings
  • 26/06355/FULL Awaiting decision

    11 - 12 William Street London SW1X 9HL

    Refurbishment of existing shopfront, installation of retractable awnings, replacement entrance steps and associated external alterations. (Linked to 26/06364/LBC and 26/06356/ADV)

    Submitted 16 Sep 2026 Full applications
  • 26/06356/ADV Awaiting decision

    11 - 12 William Street London SW1X 9HL

    Display of an externally illuminated (back lit) fascia sign measuring 1.4m x 0.3m and an internally illuminated menu box measuring 0.6m x 0.37m. (Linked to 26/06355/FULL and 26/06364/LBC)

    Submitted 16 Sep 2026 Advertising
  • 26/06243/ADFULL Decided

    11 - 12 William Street London SW1X 9HL

    Details of the ventilation system pursuant to condition 8 of planning permission dated 01 May 2024 (RN: 24/01192/FULL).

    Submitted 11 Sep 2026
  • 26/02238/LBC Awaiting decision

    11 - 12 William Street London SW1X 9HL

    Minor internal works to lower floors and installation of part external goods lift. [Linked to 26/02237/FULL]

    Submitted 2 Apr 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 2 Apr 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 28 May 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 91 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Monmouth Planning Ltd Agent, a planning consultancy registered in London

Active · incorporated 2014 · London

83 applications on PlanIndex · across 10 councils · 88% 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

20 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.

Watch members (£5 a month) open the document list 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 full applications in a median of 119 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 0.3 miles

  • 11 - 12 William Street London SW1X 9HL

    26/06364/LBC Submitted 17 Sep 2026 50 yards away

    90% historically approved · decision due ~8 Dec

    Refurbishment of existing shopfront, installation of retractable awnings, new fascia signage, illuminated menu box, replacement entrance steps and associated external alterations. (Linked to 26/06355/FULL and 26/06356/ADV)

    Awaiting decision Heritage and listed buildings Windows or glazing

  • 11 - 12 William Street London SW1X 9HL

    26/06243/ADFULL Submitted 11 Sep 2026 50 yards away

    89% historically approved · decision due ~6 Nov

    Details of the ventilation system pursuant to condition 8 of planning permission dated 01 May 2024 (RN: 24/01192/FULL).

    Decided

  • 11 - 12 William Street London SW1X 9HL

    26/06355/FULL Submitted 16 Sep 2026 50 yards away

    88% historically approved · decision due ~8 Dec

    Refurbishment of existing shopfront, installation of retractable awnings, replacement entrance steps and associated external alterations. (Linked to 26/06364/LBC and 26/06356/ADV)

    Awaiting decision Full applications Windows or glazing

  • 11 - 12 William Street London SW1X 9HL

    26/06356/ADV Submitted 16 Sep 2026 50 yards away

    82% historically approved · decision due ~8 Dec

    Display of an externally illuminated (back lit) fascia sign measuring 1.4m x 0.3m and an internally illuminated menu box measuring 0.6m x 0.37m. (Linked to 26/06355/FULL and 26/06364/LBC)

    Awaiting decision Advertising

  • 11 - 12 William Street London SW1X 9HL

    26/02238/LBC Submitted 2 Apr 2026 50 yards away

    90% historically approved · decision due ~28 May

    Minor internal works to lower floors and installation of part external goods lift. [Linked to 26/02237/FULL]

    Awaiting decision Heritage and listed buildings 19 docs

  • 8 - 9 William Street London SW1X 9HL

    26/02627/ADV Submitted 21 Apr 2026 50 yards away

    82% historically approved · decision due ~16 Jun

    Display of internally illuminated fascia sign measuring 0.833m X 0.31m and 0.833m X 0.31m

    Awaiting decision Advertising 8 docs

In Westminster

  • 26/07528/FULL Awaiting decision

    69 Eaton Place London SW1X 8DF

    Installation of new cast iron water pipe on rear courtyard elevation. (Linked with 26/07529/LBC)

    Received 5 Nov, published by the council 6 Nov 2026 Full applications
  • 26/05200/FULL Decided

    1 The Court House 165 Seymour Place London W1H 4PU

    Installation of waterproofing system to the existing lead flat roofs

    Received 3 Aug, published by the council 28 Aug 2026 Full applications
  • 26/07521/FULL Awaiting decision

    Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ

    Installation of one external condenser unit

    Received 4 Nov, published by the council 6 Nov 2026 Full applications
  • 26/07508/FULL 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 26/07509/LBC)

    Received 4 Nov, published by the council 5 Nov 2026 Full applications
  • 26/07472/FULL Awaiting decision

    Flat 3 82 New Cavendish Street London W1G 9TA

    Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07473/LBC)

    Received 3 Nov, published by the council 6 Nov 2026 Full applications