Planning application
20 - 21 Cavendish Square London W1G 0RN
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Display of a flag measuring 2.15m x 1.12m.
As published by the council, reference 26/03232/ADV
Application record
- Reference
- 26/03232/ADV
- Type
- Advert Application (ADV)
- Status
- Pending
- Received
- 15 May 2026
- Validated
- 15 May 2026
- Ward
- West End
- Postcode
- W1G 0RN
Site history
Applications at this address on the Westminster register
This site has had 3 applications since 2026.
-
26/03509/FULL Awaiting decision
20 - 21 Cavendish Square London W1G 0RN
Installation of replacement roof top plant with a dummy mansard roof extension, replacement plant at ground floor and new third floor roof structure and new substation at the lower ground floor. [Linked to 26/03510/LBC]
-
26/03510/LBC Awaiting decision
20 - 21 Cavendish Square London W1G 0RN
Installation of replacement roof top plant with a dummy mansard roof extension, replacement plant at ground floor and new third floor roof structure and new substation at the lower ground floor. [Linked to 26/03509/FULL]
Timeline
Dates from the published record
-
15 May 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 10 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 66 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Rolfe Judd Planning Ltd Agent, a planning consultancy registered in The Oval
Active · incorporated 1992 · The Oval
525 applications on PlanIndex · across 23 councils · 93% 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 recordDocuments
Plans, drawings, consultee responses and the officer's report
7 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 advertisement consent applications in a median of 52 days. More in our guide to how long planning decisions take.
About advertisement consent applications
Advertisement consent is judged on two things only: amenity and public safety, not competition or other planning considerations. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
20 - 21 Cavendish Square London W1G 0RN
87% historically approved · decision due ~23 Jul
Installation of replacement roof top plant with a dummy mansard roof extension, replacement plant at ground floor and new third floor roof structure and new substation at the lower ground floor. [Linked to 26/03510/LBC]
Awaiting decision Full applications Extension Loft or dormer +1 28 docs -
20 - 21 Cavendish Square London W1G 0RN
90% historically approved · decision due ~23 Jul
Installation of replacement roof top plant with a dummy mansard roof extension, replacement plant at ground floor and new third floor roof structure and new substation at the lower ground floor. [Linked to 26/03509/FULL]
Awaiting decision Heritage and listed buildings Extension Loft or dormer +1 27 docs -
Payphone Site Outside 1 Old Cavendish Street London W1G 0NE
Single sided vinyl advert measuring 646mm x 1770mm attached to one glazed face of each of two conjoined payphones located outside 1 Old Cavendish Street (West of 'John Lewis' department store)
Refused Advertising Windows or glazing 10 docs -
Cavendish House 18 Cavendish Square London W1G 0PJ
Removal of double doorway with surrounding frame and glazing, provision of matwell, refurbishment of C20th and C21st elements.
Granted Heritage and listed buildings Windows or glazing 19 docs -
Flanders House 1A Cavendish Square London W1G 0PH
90% historically approved · decision due ~16 Sep
Maintenance and repair works to the external elevations of the building including ironwork and windows.
Decided Heritage and listed buildings Windows or glazing -
Cavendish Court 11 - 15 Wigmore Street London W1U 1PF
Display for a temporary period of six months of a non-illuminated 'to let' board located on the face of the building at a height of between 3m and 4.6m above pavement level and measuring 1.2m x 0.9m.
Granted Advertising 2 docs
Other advertisement consent applications
In Westminster
-
26/06444/ADV Awaiting decision
107 Long Acre London WC2E 9NT
Display of an internally illuminated (backlit letters only) projecting sign measuring 0.60m x 0.77m on the Neal Street elevation. [Split decision].
-
26/06296/ADV Awaiting decision
15 Warwick Way London SW1V 1QT
Display of Individual soft halo externally illuminated individual brass letters on fascia. Display of externally illuminated hanging sign measuring 40mm x 40mm, including Gilded vinyl decal.
-
26/06070/ADV Granted
36 Shepherd Market London W1J 7QR
Display of non-illuminated screen-printed signage to the fabric and valance of retractable canvas awning.
-
26/06304/ADV Awaiting decision
10 Piccadilly London W1J 0DD
Display of an externally illuminated advertising area measuring 7.4m x 10.1m and a 1:1 printed image of the building for a temporary period of 15 months.
-
26/05573/ADV Decided
1 The Piazza Covent Garden London WC2E 8HB
Display of two platforms measuring 13.6m x 3.6m x 2.263m and 14.61m x 3.6m x 2.263m each featuring three internally illuminated sculptures for a temporary period from 16 October 2026 to 6 January 2027.