The Ritz Hotel 150 - 156 Piccadilly London W1J 9BR Data via plota.co.uk
Proposal
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, temporary construction logistics works and other ancillary works (Amendments to listed building consent dated 24 April 2025 RN:). Data via plota.co.uk
Application progress
Approved on 12 Mar 2026 · Delegated Decision · Last checked 17 Oct 2026
Documents 428
Decision & officer reports 2
Statements & assessments 1
Plans & drawings 413
Application forms 1
Consultation & comments 4
Other documents 7
Associated applications 9
- Listed buildingAlterations and extensions to the Ritz Hotel and William Kent House including the change…This application25/07529/LBC
Show 7 more · 4 approved, 3 pending
Show 4 earlier · 1 approved, 3 pending
Site constraints 13
Show the other 40 with distances
- 17 mWimbourne HouseGrade II*
- 31 mThe Wolseley 157-160 Piccadilly including 1-3 Arlington StreetGrade II*
- 32 mPart of the Devonshire ClubGrade II
- 35 mPart of the Devonshire ClubGrade II*
- 41 m21, Arlington Street Sw1Grade II*
- 46 mUnnamed
- 50 mForecourt Railings and Gate Piers to Number 21Grade II*
- 53 mDevonshire ClubGrade II
- 54 m49, ST JAMES'S STREET SW1 (See details for further address information)Grade II*
- 57 mPair of K6 Telephone Kiosks Adjacent to Western Corner of Ritz HotelGrade II
- 59 mDevonshire HouseGrade II
- 68 m63 and 65, Piccadilly W1Grade II
- 80 m50, Albemarle Street W1Grade II*
- 87 m49, Albemarle Street W1Grade II
- 99 m61, 61A, 62 AND 62A, PICCADILLY W1 (See details for further address information)Grade II
- 99 m162-165, PICCADILLY W1 (See details for further address information)Grade II
- 99 mWhite's ClubGrade I
- 99 mBrook's Club (South of Number 60)Grade I
- 102 mThe Royal Overseas League, Including Rutland House and Its Former Gatehouse, Number 16 Arlington Street, and Vernon House to the SouthGrade I
- 104 m47, Albemarle Street W1Grade II
- 105 m41 and 42, Dover Street W1Grade II
- 105 m10, Dover Street W1Grade II
- 107 m45-46, Albemarle StreetGrade II
- 110 m5 Large Lampstandards East and West of Avenue From Piccadilly to Victoria MemorialGrade II
- 114 m19 Lampstandards Ranged Along Queen's Walk From Outside Wimbourne House to Junction With the MallGrade II
- 115 m48-50, OLD BOND STREET W1 (See details for further address information)Grade II
- 123 mStratton HouseGrade II
- 127 mDudley HouseGrade II
- 129 m5, Albemarle Street W1Grade II
- 130 m19, St James's Place Sw1Grade II
- 131 m20, St James's Place Sw1Grade II
- 131 mBoodle's ClubGrade I
- 138 m70-72, JERMYN STREET SW1 (See details for further address information)Grade II
- 140 mPratt's ClubGrade II
- 142 m44, Old Bond Street W1Grade II
- 142 mAgnew'sGrade II
- 143 mThe Economist group (including office tower, residential block, former bank and podium)Grade II*
- 145 m41 Albemarle Street, London W1Grade II
- 147 m7, Albemarle Street W1Grade II*
- 147 m1a, Old Bond Street W1Grade II
Checked on 11 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Building
From the energy performance certificate lodged in June 2026, the latest held for this property. The building may have changed since. View the certificate
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Shopfront alterations. (Linked with 26/07012/FULL)
Important details
- Council
- Westminster
- Application type
- Listed Building Consent Application
- Postcode
- W1J 9BR
- Received
- 17 Oct 2025
- Validated
- 17 Oct 2025
- Ward
- St James's
- Case officer
- Show
- Target decision
- 12 Dec 2025
- Decision
- Application Permitted
- Decision date
- 12 Mar 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- DP9 Limited
How this decision compares
Decided in 146 days from validation, 89 days slower than Westminster's median of 57 for listed building works. Approved, as 90% of listed building works here are.
Plota live figures for listed building works decided by Westminster in the last twelve months, from validation. Westminster decision record →
Public comments
No public comments yet.
Last counted 17 Oct 2026
Consultation & key dates
- Alt. reference
- PP-14389017
- Planning Portal ref
- PP-14389017
- Comments by
- 26 Nov 2025
- Site or press notice
- 5 Nov 2025
- Env. assessment
- No
Historical activity at this location
50 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
Westminster is slower than most councils at deciding householder applications, ranking #258 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Westminster is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.
Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.
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The Ritz Hotel 150 - 156 Piccadilly London W1J 9BR
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Referenced application
Council archive
The Ritz Hotel 150 - 156 Piccadilly London W1J 9BR
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…
- Received
- 6 Dec 2024
- Outcome
- Pending
- Type
- Heritage
