Planning application
25/07342/LBC
24 Montpelier Street London SW7 1HD
Proposal
Construction of mansard roof; replacement of staircase and vault door to front lightwell; internal alterations to third floor. (Linked with 25/07341/FULL)
As published by the council, reference 25/07342/LBC
Timeline
Dates from the published record
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10 Oct 2025
Received by Westminster
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21 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
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
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25/07341/FULL Awaiting decision
24 Montpelier Street London SW7 1HD
Construction of mansard roof; replacement of staircase and vault door to front lightwell. (Linked with 25/07342/LBC)
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26/00407/TCA Granted
36 Montpelier Street London SW7 1HD
G1 2 x Olive : Reduce by height by around 30-40% (3-4m) and scale remaining crowns to shape and contain.
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06/09472/FULL Granted
1 Montpelier Mews London SW7 1HB
Demolition of Nos. 1 and 2 Montpelier Mews. Erection of two new mews buildings comprising lower ground, ground, first and second floors in connection with their use as single family dwelling houses.
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13/03550/CAC Decided
12 Montpelier Mews London SW7 1HB
Conversion of garage into habitable room and installation of window.
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05/06977/CAC Granted
2 Montpelier Mews London SW7 1HB
Demolition of No. 2 and partial demolition of 3 Montpelier Mews.
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07/00987/CAC Granted
1 Montpelier Mews London SW7 1HB
Demolition of Nos. 1 and 2 Montpelier Mews in connection with the construction of two new mews buildings with lower ground, ground, first and second floor.
Other heritage and listed buildings applications
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26/04984/LBC Awaiting decision
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Installation of replacement fire surround.
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26/04997/LBC Awaiting decision
Hanover Lodge Outer Circle Regent's Park London NW1 4HB
Erection of a morning room side extension. (Linked to 26/04996/FULL)
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26/04979/LBC Awaiting decision
12 Brewer Street London W1F 0SF
Internal alterations including removal of internal enclosures; Replacement flooring, shelving and slatwall systems, staircase handrail repair and other associated joinery works.
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26/04987/LBC Awaiting decision
Basement And Ground Floor 8 Ganton Street London W1F 7QL
Repainting of the existing timber shopfront, hand-painted fascia lettering, installation of a new hanging sign using the existing projecting sign bracket, and installation of a discreet fascia-mounted LED trough light.
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26/04995/LBC Awaiting decision
Hanover Lodge Outer Circle Regent's Park London NW1 4HB
Erection of rear conservatory extensions and an entrance loggia to side with roof terrace above, together with associated landscaping and alterations. (Linked with 26/04994/FULL)