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Planning application

3 Great Cumberland Mews London W1H 7DZ

Awaiting decision Westminster 26/02789/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

Removal of Condition 7 of planning permission dated 16th April 2026 (RN: 25/08713/FULL) to remove the requirement to secure measures to mitigate the potential increased demand for on-street residents car parking in the vicinity of the site.

As published by the council, reference 26/02789/FULL

Application record

Reference
26/02789/FULL
Type
Full Planning Permission Application
Status
Pending
Received
27 Apr 2026
Validated
10 May 2026
Ward
Marylebone
Postcode
W1H 7DZ

Site history

Applications at this address on the Westminster register

This site has had 3 applications since 2025: 1 approved, 0 refused.

  • 26/02789/ADFULL Awaiting decision

    3 Great Cumberland Mews London W1H 7DZ

    Details of appropriate arrangements to secure measures to mitigate the potential increased demand for on-street residents car parking in the vicinity of the site pursuant to condition 7 of planning permission dated 16th April 2026 (RN:25/08713/FULL)

    Submitted 27 Apr 2026 Full applications
  • 25/08713/FULL Granted

    3 Great Cumberland Mews London W1H 7DZ

    Conversion of the existing ground-floor garage into habitable residential accommodation; enlargement of the rear window in the existing utility room; and installation of air conditioning unit at rear ground floor patio.

    Decided 16 Apr 2026 Full applications

Timeline

Dates from the published record

  1. 27 Apr 2026

    Received by Westminster

  2. 10 May 2026

    Validated

    Checked as complete and ready for consideration.

  3. 21 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 5 July 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

Vernon Architects Agent, an architecture practice registered in London

Active · incorporated 2014 · London

7 applications on PlanIndex · across 2 councils

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

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.

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

  • 3 Great Cumberland Mews London W1H 7DZ

    26/02789/ADFULL Submitted 27 Apr 2026 50 yards away

    88% historically approved · decision due ~22 Jun

    Details of appropriate arrangements to secure measures to mitigate the potential increased demand for on-street residents car parking in the vicinity of the site pursuant to condition 7 of planning permission dated 16th April 2026 (RN:25/08713/FULL)

    Awaiting decision Full applications 5 docs

  • 15 Great Cumberland Mews London W1H 7DZ

    07/10558/ADFULL Submitted 4 Dec 2007 50 yards away

    Details of waste and recyclables storage pursuant to Condition 5 of planning permission dated 26 July 2006 (RN: 06/03803).

    Granted Full applications 5 docs

  • 15 Great Cumberland Mews London W1H 7DZ

    07/07799/ADFULL Submitted 5 Sep 2007 50 yards away

    Windows pursuant to Condition 3 of planning permission dated 26 July 2007 (RN: 06/03803).

    Granted Full applications Windows or glazing 3 docs

  • 15 Great Cumberland Mews London W1H 7DZ

    06/03803/FULL Submitted 16 May 2006 50 yards away

    Change of use to provide two self contained flats, external alterations including insertion of window at ground floor front elevation and construction of an external stair.

    Granted Full applications New dwelling Windows or glazing 10 docs

  • 3 Great Cumberland Mews London W1H 7DZ

    25/08713/FULL Submitted 28 Nov 2025 50 yards away

    Conversion of the existing ground-floor garage into habitable residential accommodation; enlargement of the rear window in the existing utility room; and installation of air conditioning unit at rear ground floor patio.

    Granted Full applications Windows or glazing 13 docs

  • 22 Seymour Place London W1H 7NJ

    25/06754/FULL Submitted 19 Sep 2025 50 yards away

    Retention of the existing extract duct with brick cladding and associated fans, and duct attenuation, along with the installation of three AC units within an acoustic enclosure at the rear ground-floor roof level.

    Granted Full applications 26 docs

In Westminster

  • 26/07528/FULL Awaiting decision

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    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

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    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