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Permitted25/03446/FULLSubmitted over a year agoTwo-storey extension

17, 21 South Audley Street Westminster W1K 2NY

Variation of Condition 1 of planning permission dated 22 March 2022 (RN: 22/05004/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, to allow alterations to the courtyard risers and elevations; addition of louvers at the third-floor level of Terrace 02; increase in height of the rear parapet on the south elevation; changes to the third floor of the Minton House internal layout and the creation of a new window at third floor level; and, minor changes to the internal layouts (Application under Section 73 of the Act)

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Progress

Submitted
20 May 2025
— completed
Validated
20 May 2025
— completed
Consultation
25 Jun 2025
— completed
Target date
15 Jul 2025
— completed
Decided
13 Mar 2026
— completed

Application details

Reference
25/03446/FULL
Local authority
Westminster
Postcode
W1K 2NY
Ward
WEW_22
Application type
All Other
Property type
Commercial

Key dates

Submitted
20 May 2025
Validated
20 May 2025
Comments close
25 Jun 2025
Target decision
15 Jul 2025
Decided
13 Mar 2026

Estimated project value

£75k–£175k

Typical UK cost for this job type, at inner London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: FMB / Checkatrade 2026, £2,000-£2,800/m² over a larger floor area.

Recently sold nearby

New owners, recently moved in. First work on a house usually follows within months of completing. 8 recent sales are listed below.

Homes here go for about £5,375,000 — the median of the last 5 market sales in W1K (the wider postcode district), £3,950,000 to £8,600,000.

Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.

Planning constraints

No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.

Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.

Nearby applications