Planning application
25/06937/FULL
21 Lees Place London W1K 6LR
Proposal
Partial demolition; basement excavation; replacement ground floor frontage; creation of a rear lightwell; installation of a new window on the west elevation; and associated external works in connection with residential use of part of the ground floor and new basement floor as a three bedroom residential unit (Class C3). (Land use swap with 20 Upper Grosvenor Street (REF: 25/06740/FULL))
As published by the council, reference 25/06937/FULL
Timeline
Dates from the published record
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26 Sep 2025
Received by Westminster
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7 Apr 2026
Decision issued: Application Permitted
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21 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
About full applications applications
How this application type works
A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.
Nearby applications
Within 500 metres
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25/06741/FULL Withdrawn
21 Lees Place London W1K 6LR
Partial demolition and excavation of a new lower ground floor level; installation of a replacement ground floor frontage; creation of a rear lightwell; and associated external works in connection with the use of part of the ground floor and new basement floor as residential floorspace (Class C3) comprising 1x3 bedroom unit. (LAND USE SWAP WITH 20 UPPER GROSVENOR STREET (REF: 25/06740/FULL)
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26/03678/ADFULL Awaiting decision
21 Lees Place London W1K 6LR
Details of new windows and external doors pursuant to condition 4 of planning permission dated 01 April 2026 (RN: 25/06937/FULL)
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26/04177/CLEUD Awaiting decision
21 Lees Place London W1K 6LR
Lawful implementation of previously approved development under planning ref 24/08789/FULL granted 10th February 2025 for "Amalgamation of two existing two-bedroom flats located on first and second floors of the property into a single family sized four-bedroom residential unit. Addition of a rooflight to the flat section of the roof."
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25/09351/FULL Awaiting decision
57 Green Street London W1K 6RH
Replacement of two air conditioning condensers and minor alterations to the existing acoustic enclosure (replacement of three solid panels with acoustic louvres)
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26/01878/AD7 Awaiting decision
104 Park Street London W1K 6NF
Display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6 x 0.9m. (renewal)
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26/03601/AD7 Awaiting decision
104 Park Street London W1K 6NF
Display for a temporary period of six months of a non-illuminated estate agent board located on the face of the building at ground floor level and measuring 0.45m x 0.6m.
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