Planning application
26/04642/LBC
66 Grosvenor Street London W1K 3JH
Proposal
Internal alterations to include new floor coverings, moving floor boxes, removing wet rads, and installing new kitchenette. External runs for drainage into existing, and new cast iron downpipe section to conceal extended water supply.
As published by the council, reference 26/04642/LBC
Timeline
Dates from the published record
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10 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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26/00368/ADFULL Granted
Broadbent House 64 - 65 Grosvenor Street London W1K 3JH
Details of samples of obscure glazing panels and a Biodiversity Management Plan to ensure planting is maintained to a height of 1.5-1.7m pursuant to Conditions 4 and 7 of planning permission dated 05 November 2025 (RN: 25/02852/FULL)
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26/03830/AD7 Awaiting decision
62 Grosvenor Street London W1K 3JF
Display for a temporary period of six months of a non-illuminated estate agent board attached to the railings in front of the building at street level and measuring 0.6 x 0.45m
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25/09112/FULL Granted
17 Grosvenor Street London W1K 4QH
Installation of air source heat pump in modified plant enclosure; green roof and rooflights; modifications to front mansard profile and front elevation.
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07/10026/AD7 Granted
14 Brook's Mews London W1K 4DT
Display for a temporary period of six months of a non-illuminated 'to let' Estate Agent Board located on the face of the building at a height of between 3m and 4.6m above pavement level and measuring 1.2m x 0.9m.
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06/09001/AD7 Granted
14 Brook's Mews London W1K 4DT
Display for a temporary period of six months of a non-illuminated 'to let'/ 'for sale' board located on the face of the building at a height of between 3m and 4.6m above pavement level and measuring 1.2m x 0.9m.
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13/02400/ADFULL Granted
14-16 Brook's Mews London W1K 4DT
Detailed drawings and a bio-diversity management plan in relation to the green roof; to include construction method, layout, species and maintenance regime pursuant to Condition 4 of planning permission dated 21 December 2011 (RN: 11/07641).
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)