Planning application
26/04400/LBC
38 Grosvenor Square London W1K 2HW
Proposal
Refurbishment and redevelopment of the site to provide a hotel (Use Class C1) with associated ancillary facilities, including the demolition of the existing rear wing and the erection of a new rear wing extension with roof pavilion and terrace, construction of a basement, and associated servicing, cycle parking, and landscaping works. (Linked with 26/04399/FULL)
As published by the council, reference 26/04400/LBC
Timeline
Dates from the published record
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2 Jul 2026
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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26/04399/FULL Awaiting decision
38 Grosvenor Square London W1K 2HW
Refurbishment and redevelopment of the site to provide a hotel (Use Class C1) with associated ancillary facilities, including the demolition of the existing rear wing and the erection of a new rear wing extension with roof pavilion and terrace, construction of a basement, and associated servicing, cycle parking, and landscaping works. (Linked with 26/04400/LBC)
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26/02576/FULL Awaiting decision
38 Grosvenor Square London W1K 2HW
Temporary pop-up exhibition (Use Class F1) for a period of 18 months.
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25/08787/ADFULL Granted
35 - 37 Grosvenor Square London W1K 2HN
Details of Supplementary Acoustic Report pursuant to condition 7 of planning permission dated 30 September 2024 (RN: 24/05532/FULL)
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25/06638/TELCOM Granted
Communications Station 39 - 44 Grosvenor Square London W1K 2HP
Removal of the existing 3no. antennas and installation of replacement 3no. antennas two of which located on new freestanding frames and ancillary development thereto including 1.1m freestanding handrail.
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26/02805/LBC Awaiting decision
Flat D 42 South Audley Street London W1K 2PT
Replacement of the existing modern wood floor finish in the main living room and part of the hallway.
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26/03449/ADFULL Awaiting decision
34 Grosvenor Square London W1K 2HD
Details of new french doors pursuant to condition 4 of planning permission dated 17 March 2026 (RN: 25/08464/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)