Planning application
97 Mount Street London W1K 2TD
Relates to 26/00859/FULL
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Replacement of vault doors at lower-ground floor level and installation of roof breather vents beneath roof terrace decking. (Linked to 26/00859/FULL)
As published by the council, reference 26/00860/LBC
Application record
- Reference
- 26/00860/LBC
- Type
- Listed Building Consent Application
- Status
- Pending
- Received
- 12 Feb 2026
- Validated
- 12 Feb 2026
- Ward
- West End
- Postcode
- W1K 2TD
Site history
Applications at this address on the Westminster register
This site has had 11 applications since 2025: 7 approved, 0 refused.
-
26/04021/NMA Decided
97 Mount Street London W1K 2TD
Amendments to planning permission dated 14th October 2024 (RN 24/01954/FULL) for, "Installation of a new box rooflight (to provide access), creation of a terrace with glass balustrade and replacement of plant with new enclosure all at main roof level"; (Site includes 97 and 99 Mount Street) NAMELY, installation of railings with integrated gate at roof level to prevent access along the parapet party wall.
-
26/04016/LBC Decided
97 Mount Street London W1K 2TD
Installation of railings at roof level with an integrated gate.
-
26/00859/FULL Awaiting decision
97 Mount Street London W1K 2TD
Replacement of vault doors at lower-ground floor level and installation of roof breather vents beneath roof terrace decking (Linked to 26/00860/LBC)
-
26/00136/ADFULL Granted
97 Mount Street London W1K 2TD
Details of new doors pursuant to condition 7 of listed building consent dated 14th October 2024 (RN: 24/01955/LBC).
-
25/09041/ADFULL Granted
97 Mount Street London W1K 2TD
Details of roof terrace railings pursuant to condition 6 of planning permission dated 14th October 2024 (RN: 24/01954/FULL)
-
25/09042/FULL Granted
97 Mount Street London W1K 2TD
Installation of dry riser inlet within existing grille.
-
25/08980/ADLBC Granted
97 Mount Street London W1K 2TD
Details of design of outlet valve cabinets pursuant to condition 3 of listed building consent dated 6 November 2025 (RN: 25/03472/LBC).
-
25/08826/ADLBC Granted
97 Mount Street London W1K 2TD
Details of roof terrace railings pursuant to condition 11 of listed building consent dated 14th October 2024 (RN: 24/01955/LBC)
-
25/05402/ADLBC Granted
97 Mount Street London W1K 2TD
Detailed drawings of the new secondary glazing, detailed drawings of the new doors, detailed method statement, including photographs, showing how each retained door will be upgraded for fire protection, including a plan to show where each retained door is located and detailed drawings of the roof terrace railings pursuant to conditions 6, 7, 8 and 11 of listed building consent dated 14th October 2024 (RN:24/01955/LBC)
-
25/03472/LBC Granted
97 Mount Street London W1K 2TD
Installation of dry riser system and associated works.
Timeline
Dates from the published record
-
12 Feb 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 9 April 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.
Related applications
Cases linked to this one on the register
-
26/00859/FULL Awaiting decision
97 Mount Street London W1K 2TD
Replacement of vault doors at lower-ground floor level and installation of roof breather vents beneath roof terrace decking (Linked to 26/00860/LBC)
1 later application on the register refers to this one:
-
26/00859/FULL Awaiting decision
97 Mount Street London W1K 2TD
Replacement of vault doors at lower-ground floor level and installation of roof breather vents beneath roof terrace decking (Linked to 26/00860/LBC)
Documents
Plans, drawings, consultee responses and the officer's report
1 document 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
-
97 Mount Street London W1K 2TD
88% historically approved · decision due ~9 Apr
Replacement of vault doors at lower-ground floor level and installation of roof breather vents beneath roof terrace decking (Linked to 26/00860/LBC)
Awaiting decision Full applications 12 docs -
97 Mount Street London W1K 2TD
Details of roof terrace railings pursuant to condition 6 of planning permission dated 14th October 2024 (RN: 24/01954/FULL)
Granted Full applications 5 docs -
97 Mount Street London W1K 2TD
Details of new doors pursuant to condition 7 of listed building consent dated 14th October 2024 (RN: 24/01955/LBC).
Granted Conditions 4 docs -
97 Mount Street London W1K 2TD
Details of design of outlet valve cabinets pursuant to condition 3 of listed building consent dated 6 November 2025 (RN: 25/03472/LBC).
Granted Conditions 5 docs -
97 Mount Street London W1K 2TD
Details of roof terrace railings pursuant to condition 11 of listed building consent dated 14th October 2024 (RN: 24/01955/LBC)
Granted Conditions 10 docs -
97 Mount Street London W1K 2TD
Detailed drawings of the new secondary glazing, detailed drawings of the new doors, detailed method statement, including photographs, showing how each retained door will be upgraded for fire protection, including a plan to show where each retained door is located and detailed drawings of the roof terrace railings pursuant to conditions 6, 7, 8 and 11 of listed building consent dated 14th October 2024 (RN:24/01955/LBC)
Granted Conditions Windows or glazing 102 docs
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