Planning application
25/08197/LBC
40 - 46 Brook Street West End London W1K 5DB
Proposal
Excavation to deepen the basement level under nos 40-46 Brook Street; raising height of fourth-floor ceilings in the rear townhouses (nos. 42-46 Brook Street) and installation of three plant decks with localised structural penetrations to accommodate supporting beams; installation of new external plant equipment and associated enclosures at roof levels, and erection of a lightweight pergola at first-floor level between the townhouses and the mews building, together with two new roof lanterns at ground floor level; replacement of non-original windows at ground and second floor of no. 40 Brook Street, alongside other elevation alterations at ground floor level; reinstatement of historical features, internal and external alterations including localised fabric removal, installation of a corner turret and side gables; and other associated works. (Linked with 25/08366/NMA)
As published by the council, reference 25/08197/LBC
Timeline
Dates from the published record
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11 Nov 2025
Received by Westminster
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17 Nov 2025
Validated
Checked as complete and ready for consideration.
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20 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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25/08366/NMA Awaiting decision
Development Site Bound By Brook Street, Davies Street And South Molton Lane (excluding 58 Davies Street) And 10, 15-25, 27 And 42 South Molton Street London
Amendments to planning permission dated 19 April 2023 (RN: 22/04610/FULL) for, 'Part demolition, excavation (including beneath Davies Mews), erection of new buildings and alterations to existing buildings comprising: redevelopment of 60 Brook Street; redevelopment of 48, 50, 56 and 58 Brook Street and 16 Davies Mews behind retained Brook Street facades, including the partial dismantling and reinstatement and partial like for like replacement of portico entrance at 48-50 Brook Street; redevelopment behind retained and partially reconstructed facade at 52-54 Brook Street; refurbishment with alterations and addition of turret and gables at 40-46 Brook Street and 40 South Molton Lane; redevelopment behind retained Davies Mews and South Molton Lane elevations and alterations to the street level including the dismantling and reinstatement of the roof and associated works at 1-7 Davies Mews and 28-30 South Molton Lane; refurbishment and alterations at 50 Davies Street; refurbishment with alterations and partial demolition and redevelopment of upper floors at 52-54 Davies Street; redevelopment behind reconstructed and extended facade at 56 Davies Street (including the removal and reinstatement of certain building features), and Brookfield House (44-48 Davies Street and 62 and 64 Brook Street); part demolition of ground floor and refurbishment at 10 South Molton Street; refurbishment and alterations at 15-25, 27 and 42 South Molton Street; all to provide a development of up to 9 storeys including Class B1 (Business), Class A1 (Shops), Class A3 (Restaurant and Cafes), Class A4 (Drinking Establishment), composite use comprising public house and guest accommodation (sui generis), Class C3 (Dwelling houses), Community Infrastructure and Facilities, and Class C1 (Hotel) uses, improvements to public realm and pedestrian routes, servicing, ancillary plant and storage, cycle parking and other associated works; Namely, to make changes to the 40-46 Brook Street development phase.
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25/06428/ADFULL Granted
Development Site Bound By Brook Street, Davies Street And South Molton Lane (excluding 58 Davies Street) And 10, 15-25, 27 And 42 South Molton Street London
Detailed drawings of the rear extensions, including roof terraces in relation to 15 and 18 South Molton Street and 16, 17, 19-21 South Molton Street pursuant to condition 3 (F)(4) of planning permission dated 19th April 2023 (RN:22/04610/FULL)
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25/06429/ADFULL Granted
Development Site Bound By Brook Street, Davies Street And South Molton Lane (excluding 58 Davies Street) And 10, 15-25, 27 And 42 South Molton Street London
Detailed drawings of the roof extension and roof alterations pursuant to condition 3 (G) (1) of planning permission dated 19th April 2023 (RN:22/04610/FULL)
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25/07836/ADFULL Awaiting decision
Development Site Bound By Brook Street, Davies Street And South Molton Lane (excluding 58 Davies Street) And 10, 15-25, 27 And 42 South Molton Street London
Detailed drawings of the vents in facades at 15-21 South Molton Street pursuant to condition 3 (F5) of planning permission dated 19th April 2023 (RN:22/04610/FULL)
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25/06427/ADFULL Granted
Development Site Bound By Brook Street, Davies Street And South Molton Lane (excluding 58 Davies Street) And 10, 15-25, 27 And 42 South Molton Street London
Detailed drawings of the New windows in relation to 24, 25 and 27 South Molton Street (as applicable) pursuant to condition 3 (H)(2) of planning permission dated 19th April 2023 (RN:22/04610/FULL)
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25/07215/ADFULL Awaiting decision
Development Site Bound By Brook Street, Davies Street And South Molton Lane (excluding 58 Davies Street) And 10, 15-25, 27 And 42 South Molton Street London
Details of shopfront pursuant to Condition 3 (Part E 1) of planning permission dated 19 April 2023 (RN22/04610/FULL)
Other heritage and listed buildings applications
In Westminster
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26/04984/LBC Awaiting decision
47G Randolph Avenue London W9 1BQ
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)