Planning application
Basement And Ground Floor 9 Mount Street London W1K 3NG
Works: Windows or glazing
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Detailed drawings at 1:10, 1:5 of alterations to rear lower ground floor windows to accommodate vents; pursuant to condition 4 (part D) of listed building consent dated 28th May 2026 (26/00240/LBC)
As published by the council, reference 26/05093/ADFULL
Application record
- Reference
- 26/05093/ADFULL
- Type
- Approval of Details (Full PP)
- Status
- Pending
- Received
- 29 Jul 2026
- Validated
- 29 Jul 2026
- Ward
- West End
- Postcode
- W1K 3NG
Timeline
Dates from the published record
-
29 Jul 2026
Received by Westminster
-
10 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 23 September 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 61 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Agent on file, registered in London
116 applications on PlanIndex · across 30 councils · 94% granted
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
4 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.
Trade members open them from here.
Open the documentsWhat happens while it is decided
The process from here
This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About full applications applications
How this application type works
A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.
Nearby applications
Within 500 metres
-
Basement And Ground Floor 9 Mount Street London W1K 3NG
90% historically approved · decision due ~13 Mar
Installation of external plant, replacement awning, new shop front signage and reconfiguration of the lower ground and ground floor including new flooring, joinery and associated works in connection with the refurbishment of the retail unit. (Linked to 26/00239/FULL)
Awaiting decision Heritage and listed buildings Windows or glazing 30 docs -
Basement And Ground Floor 9 Mount Street London W1K 3NG
87% historically approved · decision due ~13 Mar
Installation of external plant and reconfiguration of the lower ground and ground floor including new flooring, joinery and associated works in connection with the refurbishment of the retail unit. (Linked to 26/00240/LBC)
Awaiting decision Full applications 32 docs -
Basement And Ground Floor 9 Mount Street London W1K 3NG
Display of non illuminated fascia sign (90mm x 700mm) and an awning sign.
Decided Advertising 4 docs -
Basement And Ground Floor 9 Mount Street London W1K 3NG
89% historically approved · decision due ~14 Aug
Details/specifications of the new condensors pursuant to Condition 5 of listed building dated 28 May 2026 (26/00240/LBC)
Decided -
Basement And Ground Floor 9 Mount Street London W1K 3NG
89% historically approved · decision due ~11 Sep
Details at 1:1 of new grills, sample photographs along with materiality, Details at 1:10 of new stair balustrades, Details of lighting demonstrating where on drawings ; Details of new modern flooring and joinery showing their relationship in conjunction with any existing historic fabric, demonstrating that their installation would not cause harm, pursuant to the partial discharge of condition 4 (Parts A,B,C and E only) of listed building consent dated 28th May 2026(RN: 26/00240/LBC)
Awaiting decision -
Basement And Ground Floor 9 Mount Street London W1K 3NG
89% historically approved · decision due ~23 Sep
Detailed drawings at 1:10, 1:5 of alterations to rear lower ground floor windows to accommodate vents; pursuant to condition 4 (part D) of listed building consent dated 28th May 2026 (26/00240/LBC)
Decided Windows or glazing
Other full applications applications
In Westminster
-
26/06024/FULL Awaiting decision
House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA
Installation of new and replacement electronic equipment within Speaker. (Linked with 26/06025/LBC)
-
26/06017/FULL Awaiting decision
38 Lauderdale Mansions Lauderdale Road London W9 1NE
Installation of an external AC Unit / Heat Pump at roof level.
-
26/05938/FULL Awaiting decision
24 Vincent Square London SW1P 2NJ
Subdivision of existing residential property to create two self-contained 3-bedroom family homes, along with cycle parking and associated external alterations.
-
26/05935/FULL Awaiting decision
47 Hereford Road London W2 5AH
Installation of one number new external condenser unit to the southerly elevation service alley.
-
26/05959/FULL Awaiting decision
Basement And Ground Floor 50 New Bond Street London W1S 1BJ
Installation of three new condensers on the roof, within an existing designated plant area.