Planning application
Basement And Ground Floor 9 Mount Street London W1K 3NG
Works: Windows or glazing
Relates to 26/00239/FULL
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
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)
As published by the council, reference 26/00240/LBC
Application record
- Reference
- 26/00240/LBC
- Type
- Listed Building Consent Application
- Status
- Pending
- Received
- 16 Jan 2026
- Validated
- 16 Jan 2026
- Ward
- West End
- Postcode
- W1K 3NG
Site history
Applications at this address on the Westminster register
This site has had 8 applications since 2026.
-
26/05093/ADLBC Decided
Basement And Ground Floor 9 Mount Street London W1K 3NG
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)
-
26/05093/ADFULL Awaiting decision
Basement And Ground Floor 9 Mount Street London W1K 3NG
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)
-
26/04801/ADLBC Awaiting decision
Basement And Ground Floor 9 Mount Street London W1K 3NG
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)
-
26/04120/ADFULL Decided
Basement And Ground Floor 9 Mount Street London W1K 3NG
Details/specifications of the new condensors pursuant to Condition 6 of planning permission dated 28 May 2026 (26/00239/FULL).
-
26/04068/ADLBC Decided
Basement And Ground Floor 9 Mount Street London W1K 3NG
Details/specifications of the new condensors pursuant to Condition 5 of listed building dated 28 May 2026 (26/00240/LBC)
-
26/00238/ADV Decided
Basement And Ground Floor 9 Mount Street London W1K 3NG
Display of non illuminated fascia sign (90mm x 700mm) and an awning sign.
-
26/00239/FULL Awaiting decision
Basement And Ground Floor 9 Mount Street London W1K 3NG
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)
Timeline
Dates from the published record
-
16 Jan 2026
Received by Westminster
-
20 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 13 March 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.
Related applications
Cases linked to this one on the register
-
26/00239/FULL Awaiting decision
Basement And Ground Floor 9 Mount Street London W1K 3NG
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)
5 later applications on the register refer to this one:
-
26/05093/ADLBC Decided
Basement And Ground Floor 9 Mount Street London W1K 3NG
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)
-
26/05093/ADFULL Awaiting decision
Basement And Ground Floor 9 Mount Street London W1K 3NG
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)
-
26/04801/ADLBC Awaiting decision
Basement And Ground Floor 9 Mount Street London W1K 3NG
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)
-
26/04068/ADLBC Decided
Basement And Ground Floor 9 Mount Street London W1K 3NG
Details/specifications of the new condensors pursuant to Condition 5 of listed building dated 28 May 2026 (26/00240/LBC)
-
26/00239/FULL Awaiting decision
Basement And Ground Floor 9 Mount Street London W1K 3NG
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)
Who's behind it
Company information only, from the register and Companies House
Knight Frank LLP Agent, registered in London
Active · incorporated 2003 · London
135 applications on PlanIndex · across 38 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
30 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
This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided heritage and listed building applications in a median of 93 days. More in our guide to how long planning decisions take.
About heritage and listed building applications
Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
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
87% 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)
Awaiting decision Full applications Windows or glazing 4 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
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