Planning application
Flat 3 54 Montagu Square London W1H 2LP
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Internal layout alterations and associated works.
As published by the council, reference 26/05923/LBC
Application record
- Reference
- 26/05923/LBC
- Category
- Heritage and listed buildings
- Status
- Pending
- Received
- 31 Aug 2026
- Validated
- 7 Sep 2026
- Postcode
- W1H 2LP
Timeline
Dates from the published record
-
31 Aug 2026
Received by Westminster
-
7 Sep 2026
Validated
Checked as complete and ready for consideration.
-
7 Sep 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 2 November 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.
What 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 heritage and listed buildings applications
How this application type works
Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.
More on heritage and listed buildings applications in our guide
Nearby applications
Within 500 metres
-
Flat 1 49 Montagu Square London W1H 2LW
Replacement of existing single glazed sash timber windows and frames with new double glazed sash timber windows and frames - 5 windows on the front elevation. (Linked with 25/05706/LBC)
Granted Full applications Windows or glazing 24 docs -
Flat 1 49 Montagu Square London W1H 2LW
Replacement of existing single glazed sash timber windows and frames with new double glazed sash timber windows and frames - 5 windows on the front elevation. (Linked with 25/05705/FULL)
Granted Heritage and listed buildings Windows or glazing 20 docs -
8 Montagu Mews West London W1H 2EE
87% historically approved · decision due ~10 Jul
Roof extension, installation of air conditioning unit in an acoustic enclosure, alterations to the front and rear facades and associated works.
Awaiting decision Full applications Extension 28 docs -
9 Montagu Mews West London W1H 2EE
87% historically approved · decision due ~10 Jun
Installation of air conditioning condenser unit and acoustic enclosure to roof.
Awaiting decision Full applications 23 docs -
50 Montagu Square London W1H 2LW
90% historically approved · decision due ~26 Aug
Replacement of areas of roof covering with slate tiles to match existing, and replacement of localised areas of flashing to the roof.
Awaiting decision Heritage and listed buildings Roofing -
Flat 4 58 Montagu Square London W1H 2LS
90% historically approved · decision due ~23 Jul
Detailed drawings of the new doors pursuant to condition 3 of listed building consent dated 11th September 2025 (RN:25/04771).
Awaiting decision Conditions 5 docs
Other heritage and listed buildings applications
In Westminster
-
26/06025/LBC Awaiting decision
House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA
Installation of new and replacement electronic equipment within Speaker. (Linked with 26/06024/FULL)
-
26/05971/LBC Awaiting decision
House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA
Automation of door at principal floor level.
-
26/05962/LBC Awaiting decision
Royal Albert Hall Kensington Gore London SW7 2AP
Variation of condition 2 of listed building consent dated 26 March 2024 (RN: 24/00820/LBC) for the: Erect temporary access scaffolding platform at high level in the auditorium to inspect the condition of the plaster ceilings and main cornices. NAMELY, to allow the gantry to remain in place until December 2028.
-
26/05970/LBC Awaiting decision
Norman Shaw Building South Victoria Embankment London SW1A 2HZ
Replacement and installation of 16 electronic access control systems to Norman Shaw South
-
26/05943/LBC Awaiting decision
1 Barton Street London SW1P 3NG
Use of the building as F1(a) Education, along with associated internal and external alterations. (Linked with 26/05942/FULL)