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Permitted24/08557/NMASubmitted over a year agoTwo-storey extension

150, 156 Piccadilly Westminster W1J 9BR

Amendments to planning permission dated 12 July 2022 (RN 21/07264/FULL) for the Alterations and extensions to the Ritz Hotel and William Kent House including the change of use of the casino to a dual flexible use as hotel and/or private members club, a two storey side extension to William Kent House, extensions to the Ritz hotel including on the site of 22 Arlington Street comprising an extension of five basements, lower ground, ground, mezzanine and seven upper floors to provide additional hotel floorspace, new and upgraded hotel facilities including hotel rooms, restaurant and spa, new entrances on Arlington Street, arrival and drop off facilities, changes to the servicing and refuse facilities, car and cycle parking, plant, landscaping and all works including demolition, enabling, highways and other ancillary works. Namely, internal alterations including minor floor plan amendments; external alterations to William Kent House; the Ritz building, garden and secret garden; and to the Arlington Street extension; and amendments to wording of conditions 7 and 8.

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Progress

Submitted
9 Dec 2024
— completed
Validated
9 Dec 2024
— completed
Consultation
— completed
Target date
6 Jan 2025
— completed
Decided
9 May 2025
— completed

Application details

Reference
24/08557/NMA
Local authority
Westminster
Postcode
W1J 9BR
Ward
SJW_22
Application type
All Other
Property type
Commercial

Key dates

Submitted
9 Dec 2024
Validated
9 Dec 2024
Target decision
6 Jan 2025
Decided
9 May 2025

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 £3,210,000 — the median of the last 4 market sales in W1J (the wider postcode district), £632,000 to £5,488,000.

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