Planning application
3 Great Cumberland Mews London W1H 7DZ
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)
-
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.
Timeline
Dates from the published record
-
27 Apr 2026
Received by Westminster
-
10 May 2026
Validated
Checked as complete and ready for consideration.
-
21 Jul 2026
Added to PlanIndex
-
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 65 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 recordDocuments
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 documentsWhat 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 91 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
87% 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
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
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
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
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
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
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