Planning application
26/00833/LBC
Ground Floor 23 Wimpole Street London W1G 8GP
Proposal
Replacement windows, doors and lantern roof and internal alterations (Linked to 26/00832/FULL)
As published by the council, reference 26/00833/LBC
Timeline
Dates from the published record
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11 Feb 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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26/00832/FULL Awaiting decision
Ground Floor 23 Wimpole Street London W1G 8GP
Replacement windows, doors and lantern roof (Linked to 26/00833/LBC)
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26/03135/FULL Awaiting decision
30B Wimpole Street London W1G 8YB
Use of Basement, Ground, First and Second Floors for Medical Purposes (Use Class E (e)) for a temporary period of 20 years.
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26/03236/LBC Awaiting decision
Ground Floor 23 Wimpole Street London W1G 8GP
Internal alterations to lower ground floor flat.
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26/01740/FULL Awaiting decision
64 Wimpole Street London W1G 8YS
Erection of a new roof terrace and green roof area at rear 2nd floor level; installation of plant and photovoltaic panels at main roof level and new mansard roof extension and installation of plant on the mews roof level; alterations at ground floor front elevation; Internal and external alterations throughout the building in connection with a rear elevation extension from first to fourth floor levels and the reconfiguration of the existing fifth floor level, installation of new double glazed windows throughout all in connection with a change of use to Class E (e) medical use.
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26/00872/FULL Awaiting decision
Flat 2 New Cavendish Mansions 48 New Cavendish Street London W1G 8TG
Retrofit of existing windows, including insertion of slimline double-glazing windowpanes to front facade.
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25/07902/LBC Awaiting decision
45 New Cavendish Street London W1G 9TJ
Internal alterations at ground and lower ground level including reinstatement of staircase. (Linked with 25/07901/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)