Planning application
25/07887/LBC
14 Cavendish Square London W1G 9DB
Proposal
Refurbishment of 14 Cavendish Square, including modest internal and external alterations, and amendments to use comprising the re-location of a residential unit (Class C3) and increased museum floorspace (Class F1). (Linked to 25/07886/FULL)
As published by the council, reference 25/07887/LBC
Timeline
Dates from the published record
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30 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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26/04714/ADLBC Awaiting decision
14 Cavendish Square London W1G 9DB
Detailed drawings of the sliding roof lights above stair leading to roof terrace showing adjoining fabric and key details and detailed study and drawings of the roof light over the stair and its relationship to the existing decorative plasterwork pursuant to condition 3 (5) and (8) of listed building dated 11th March 2026 (RN:25/07887/LBC)
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25/05407/ADFULL Granted
14 Cavendish Square London W1G 9DB
Details of an Operational Management Plan pursuant to Condition 3 of planning permission dated 9th April 2025 (RN: 25/00722/FULL)
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25/07886/FULL Awaiting decision
14 Cavendish Square London W1G 9DB
Refurbishment of 14 Cavendish Square, including modest internal and external alterations, and amendments to use comprising the re-location of a residential unit (Class C3) and increased museum floorspace (Class F1). (Linked to 25/07887/LBC)
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25/09153/LBC Awaiting decision
2 Harley Street London W1G 9PB
Installation of external condenser unit in the rear lightwell and fan coil units to the first floor with associated pipework and decorative heritage panelling. (linked to 25/09152/FULL).
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25/09152/FULL Awaiting decision
2 Harley Street London W1G 9PB
Installation of external condenser unit in the rear lightwell. (linked to 25/09153/LBC)
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25/09190/CLEUD Awaiting decision
2 Harley Street London W1G 9PB
Use of Flats 1 & 2 at 2 Harley Street as commercial class E medical use
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)