Planning application
11 Mount Street London W1K 2RB
Works: New dwelling
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Installation of automatic opening fire vent at top floor of 11 Mount Street accommodation and fire exit stair core to residential apartments which occupy 1st floor to roof level. [Linked to 26/01869/FULL]
As published by the council, reference 26/01651/LBC
Application record
- Reference
- 26/01651/LBC
- Type
- Listed Building Consent Application
- Status
- Pending
- Received
- 13 Mar 2026
- Validated
- 15 Apr 2026
- Ward
- West End
- Postcode
- W1K 2RB
Site history
Applications at this address on the Westminster register
This site has had 2 applications since 2026.
-
26/01869/FULL Awaiting decision
11 Mount Street London W1K 2RB
Installation of automatic opening fire vent at top floor of 11 Mount Street accommodation and fire exit stair core to residential apartments which occupy 1st floor to roof level. [Linked to 26/01651/LBC]
Timeline
Dates from the published record
-
13 Mar 2026
Received by Westminster
-
15 Apr 2026
Validated
Checked as complete and ready for consideration.
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 10 June 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
Blair Associates Architecture Ltd Agent, an architecture practice registered in London
Active · incorporated 2005 · London
28 applications on PlanIndex · across 5 councils · 100% 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
16 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 heritage and listed building applications in a median of 119 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 0.3 miles
-
11 Mount Street London W1K 2RB
88% historically approved · decision due ~10 Jun
Installation of automatic opening fire vent at top floor of 11 Mount Street accommodation and fire exit stair core to residential apartments which occupy 1st floor to roof level. [Linked to 26/01651/LBC]
Awaiting decision Full applications New dwelling 16 docs -
Basement And Ground Floor 12 Mount Street London W1K 2RD
88% historically approved · decision due ~14 Apr
Retrospective consent for the installation of an external condenser unit at lower ground floor level in the front lightwell and internal alterations at lower ground floor level. [Linked to 26/00991/LBC]
Awaiting decision Full applications 14 docs -
Basement And Ground Floor 12 Mount Street London W1K 2RD
90% historically approved · decision due ~14 Apr
Retrospective consent for the installation of an external condenser unit at lower ground floor level in the front lightwell and internal alterations at lower ground floor level. [Linked to 26/00990/FULL]
Awaiting decision Heritage and listed buildings 8 docs -
Flat 1 11 Mount Street London W1K 2RB
Internal alterations at first floor level
Granted Heritage and listed buildings 4 docs -
Connaught Hotel Carlos Place London W1K 2AL
Display of one non-illuminated fascia sign measuring 0.3m x 1.5m for a temporary period between 01 December 2020 and 04 January 2021. Linked to 20/07630/FULL
Decided Advertising 10 docs -
14 Mount Street London W1K 2RF
Installation of a small wall mounted air conditioning unit located on exterior wall within an enclosed lightwell at first floor level to 14-16 Mount Street. Linked with 25/06839/LBC
Withdrawn Full applications 10 docs
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Minor internal works comprising redecoration and upgrades to lighting, flooring and bathroom and kitchen facilities, together with external works including new lighting and signage.