Planning application
26/03942/FULL
17 - 21 South Audley Street London W1K 2NY
Proposal
Variation of Condition 1 of planning permission dated 13th March 2026 (RN: 25/03446/FULL) for 'Alteration and extension of existing buildings including removal of one single storey extensions and one part single and part two storey extension, erection of infill extensions at first to third floor levels, a replacement part single storey and part three storey side extension adjoining Mount Street Garden and a replacement single store extension fronting onto South Street, use of part lower ground and part ground floor levels as an art gallery with ancillary storage and office accommodation (Class E), use of part basement/lower ground , part ground floor and first to fourth floor levels to aparthotel to provide 10 visitor accommodation units (Class C1) with ancillary facilities at ground and lower ground floor level, including communal lounge/library at ground floor level, use of ground to third floor of no.35A South Street, first and second floors of no.35 South Street and first to fourth floor of no. 17 South Audley Street as six residential units (Class C3), creation of terraces at first floor level within a central greened courtyard, installation of plant and associated external alterations'. NAMELY, minor changes to approved extension roof and courtyard heights by way of changes to build ups, alteration to part of roof to accommodate Stair 09 headroom, alteration of roof 07 to remove rooflights revisions to plant layout and screening, change to material of loading bay roof, introduction of automatic opening vents and roof access strategy, alteration of dormers, addition of roof drainage, installation of airbricks and internal layout changes. (Linked with 26/03883/LBC) (Application under Section 73 of the Act).
As published by the council, reference 26/03942/FULL
Timeline
Dates from the published record
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16 Jun 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 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.
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