33 Cavendish Square London W1G 0PS Data via plota.co.uk

25/05480/FULL - Full Planning Permission Application Approved

Proposal

Deep retrofit and extension of the existing building and replacement of facade and facade works, deepened basement, and the demolition of part of the existing building to provide a mixed use building comprising: offices (Class E(g)(i)); retail (Class E(a)); flexible retail, restaurant, cafe, leisure and entertainment (Class E(a) and/or Class E(b) and/or Class E(d) and/or sui generis food hall and/or sui generis composite use, comprising competitive socialising including bar use with an extended food and drink offer); flexible cultural and creative floorspace (sui generis composite use, comprising Class F1 and/or Class E(a) and/or Class E (g)(i-iii)); flexible office, retail and destination floorspace (Class E(a) and/or Class E (b) and/or (d) and/or Class E(g)(i) and/or sui generis composite use, comprising visitor destination floorspace viewing gallery with extended food and beverage, bar and leisure offer), replacement public house (sui generis), together with terraces, green roofs, solar voltaic panels and associated works as part of a phased development. Data via plota.co.uk

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View original council record ↗Last checked 31 Oct 2026, 14:26

Street View

Application progress

✓

Received

5 Aug 2025

✓

Consultation

19 Aug 2025

✓

Approved

27 Mar 2026

Approved on 27 Mar 2026 · Delegated Decision · Last checked 31 Oct 2026

Documents 205

Decision & officer reports 3

PDF 33 CAVENDISH SQ 25/05480/FULL PLANNING PERMISSION DATED 27 MARCH 2026 Decision Notice · 27 Mar 2026 View ↗ PDF COMMITTEE REPORT Background Papers · 17 Mar 2026 View ↗ PDF 33 CAVENDISH SQUARE - STAGE 1 DECISION LETTER Background Papers · 30 Sept 2025 View ↗

Statements & assessments 48

PDF Commenter’s name hidden Show Statement of Community Involvement · 5 Aug 2025 View ↗

Plans & drawings 114

Application forms 1

PDF APPLICATIONFORM REDACTED Application Form · 5 Aug 2025 View ↗

Consultation & comments 11

PDF M A COMMENTS Background Papers · 18 Nov 2025 View ↗ PDF MARYLEBONE ASSOCIATION COMMENTS Consultee Comment · 17 Nov 2025 View ↗ PDF CNSLT-CONSULTEE CLOUD STD Background Papers · 22 Oct 2025 View ↗ PDF CNSLT-CONSULTEE CLOUD STD Background Papers · 22 Oct 2025 View ↗ PDF TFL Consultee Comment · 7 Oct 2025 View ↗ PDF TFL DETAILED COMMENTS - 33 CAVENDISH SQUARE Background Papers · 7 Oct 2025 View ↗ PDF TFL COMMENTS Other · 17 Sept 2025 View ↗ PDF TFL COMMENT Other · 15 Sept 2025 View ↗ PDF ECNSLT-STD EXT CONSULTEES Background Papers · 19 Aug 2025 View ↗ PDF ECNSLT-STD EXT CONSULTEES Background Papers · 19 Aug 2025 View ↗ PDF NEIGHBOUR NOTIFICATION LETTER (21D) Background Papers · 19 Aug 2025 View ↗

Site constraints 11

2 Article 4 directions

Article 4 Basement Development Permitted Rights Removed · Article 4 Direction Class E To C3 In Central Activities Zone. Named permitted development rights are withdrawn here.

An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.

Archaeological priority area: City of Westminster APA 2.5

An assessment or field evaluation may be asked for before ground works.

The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.

Air quality management area: Westminster AQMA

The council has declared the area as failing an air quality objective.

Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.

Council record ↗

Town centre: West End

A designated centre in the London Plan.

Shops, services and active frontages are protected in centres, and main town centre uses are steered here first.

Central activities zone

The core of central London in the London Plan.

Offices, culture and the other strategic functions of the centre take priority over new housing here.

23 listed buildings within 150 m

Nearest: 1 and 1a, Cavendish Square W1, Grade II, 30 m away · 4 Grade II*, 19 Grade II

The site itself is not listed. Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.

Show all 23 with distances

30 m1 and 1a, Cavendish Square W1Grade II
50 m3, Cavendish Square W1Grade II*
62 m4, Cavendish Square W1Grade II
64 mStatue of Lord George Bentinck (at South End of Square Garden)Grade II
75 m5, Cavendish Square W1Grade II
75 m289-305 and 313-319 Regent Street W1 and 3 Cavendish PlaceGrade II
80 mUniversity of Westminster (formerly Regent Street Polytechnic)Grade II
92 m273, 275, 275A AND 281A, REGENT STREET W1 (See details for further address information)Grade II
98 mNumber 7 and Attached RailingsGrade II
102 mWinged Figure, including plinth and applied letteringGrade II*
107 m261-271, REGENT STREET W1 (See details for further address information)Grade II
111 m2 Lamp Standards in Middle of Road Between Junctions With John Princes Street and Hollies StreetGrade II
117 mRoyal College of NursingGrade II
123 mHarcourt HouseGrade II
130 mVentilation Standard on Island North of Oxford CircusGrade II
134 m14 Cavendish PlaceGrade II
136 m12, Cavendish Place W1Grade II
136 mWalmar HouseGrade II
137 m302-312, REGENT STREET W1 (See details for further address information)Grade II
138 mBridgeGrade II*
144 mPeter RobinsonGrade II
144 m249-259, Regent Street W1Grade II
147 m18, Cavendish Square W1Grade II*

Historic England ↗

Conservation area 17 m away: Harley Street

The edge of the area; work outside it can still affect its setting.

The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.

Council document ↗

Also on the record

National infrastructure project 1447 m away: Thames Tideway Tunnel; Inside the City of Westminster built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square; Priority habitat 43 m away: Deciduous woodland.

Not affected

Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 1 November 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

Floor area4,038 m² (43,465 sq ft)

Energy ratingD (asset rating 87)

UseB1 Offices and Workshop businesses

HeatingAir Conditioning

From the energy performance certificate lodged in November 2020, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council: Westminster
Application type: Full Planning Permission Application
Postcode: W1G 0PS
Received: 5 Aug 2025
Validated: 5 Aug 2025
Ward: West End
Case officer: Show
Target decision: 30 Mar 2026
Decision: Application Permitted
Decision date: 27 Mar 2026
Decision level: Delegated Decision
Applicant: Show
Agent: Newmark

How this decision compares

Decided in 234 days from validation, 158 days slower than Westminster's median of 76 for full applications. Approved, as 86% of full applications here are.

This one234d

Council76d

UK57d

35%decided within 8 weeks

86%approved

2,198decided in the last year

Plota live figures for full applications decided by Westminster in the last twelve months, from validation. Westminster decision record →

Public comments

7comments received

4 objecting2 neutral1 supporting

57% object · below the UK average of 74%

265 neighbours consulted · Last counted 31 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference: PP-13983764
Planning Portal ref: PP-13983764
Comments by: 17 Sept 2025
Site or press notice: 19 Aug 2025
Committee: 9 Dec 2025
Env. assessment: No

Historical activity at this location

32 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2025 Approved

The proposal requires removal of 6no. antennas and associated ancillary equipment; Instal…

25/07307/TELNOT 9 Oct 2025

2025 Approved

Request for an EIA Screening Opinion under Regulation 6 of the Town and Country Planning…

25/03943/EIASCR 3 Jul 2025

2020 Approved

Removal of the existing projecting entrance canopy and replacement, with a new flush cano…

20/06159/FULL 13 Nov 2020

2019 Approved

Amendements to planning permission dated 07th December 2018 (RN 18/08738/FULL) for the In…

19/03748/NMA 4 Jun 2019

2019 Approved

Recladding of the external envelope above podium level and the re-modelling of the main e…

19/00157/FULL 5 Mar 2019

2018 Approved

Upgrade of the existing site on the rooftop and relocation of 8 existing antennas to new…

18/10907/TELCOM 30 Jan 2019

2017 Approved

Installation of 60 No. small antennas pole mounted upon 11 No. free standing support fram…

17/11175/FULL 28 Mar 2018

Within ~100m

Nearby activity

2025

2 Cavendish Square London W1G 0PA

Removal of existing plant equipment, Installation of new air source heat pump, two new ai…

25/08049/FULL 5 Nov 2025

2025

3 Cavendish Square London W1G 0LB

Internal fitout works to return a CAT B space back to a CAT A space as part of the landlo…

25/08061/LBC 5 Nov 2025

2025

Market Hall West End 9 Holles Street London W1G 0BD

High Level Illuminated Fascia Signage to Cavendish Square Elevation & 2no A Boards to the…

25/07919/ADV 31 Oct 2025

2025

1 Cavendish Square London W1G 0LA

Installation of fibre optic cables along the lightwell street wall in existing tray work…

25/07814/LBC 28 Oct 2025

2025 Approved

1 Cavendish Square London W1G 0LA

Variation of Condition 13 of planning permission dated 20th April 2023 (RN: 22/07690/FULL…

25/06203/FULL 27 Oct 2025

2025

37 Cavendish Square London W1G 0PP

Variation of condition 5 of planning permission dated 16th November 2023 (RN:23/06887/FUL…

25/07190/FULL 6 Oct 2025

2025 Approved

Third Floor 3 Cavendish Square London W1G 0LB

Fit out works to the third floor

25/05783/LBC 6 Oct 2025

2025 Approved

1 Cavendish Square London W1G 0LA

Installation of surface mounted uplighters and associated alterations on the Margaret Str…

25/04627/LBC 16 Sep 2025

2025 Approved

1 Cavendish Square London W1G 0LA

Installation of surface mounted uplighters and associated alterations on the Margaret Str…

25/04626/FULL 16 Sep 2025

2025 Approved

1 Cavendish Square London W1G 0LA

Installation of two free standing planters on the public highway and window boxes on the…

25/04993/LBC 5 Sep 2025

2025 Refused

1 Cavendish Square London W1G 0LA

Installation of two free standing planters on the public highway and window boxes on the…

25/04992/FULL 5 Sep 2025

2025 Approved

1 Cavendish Square London W1G 0LA

Display of two externally illuminated signs each measuring 0.30m x 0.52m. (Linked with 25…

25/04625/ADV 21 Aug 2025

2025 Refused

1 Cavendish Square London W1G 0LA

Installation of three retractable fabric awnings on the Margaret Street facade. (Linked w…

25/04364/FULL 14 Aug 2025

2025 Refused

1 Cavendish Square London W1G 0LA

Installation of three retractable fabric awnings on the Margaret Street facade. (Linked w…

25/04365/LBC 12 Aug 2025

2024

1 Cavendish Square London W1G 0LA

Installation of a removable floor system and a resin finish to the flagstone floor tiles…

24/08645/LBC 11 Dec 2024

2024

20 John Prince's Street London W1G 0BJ

Display of internally illuminated digital screen measuring 5.8m X 2.8m with subtle motion

24/08000/ADV 18 Nov 2024

2024

20 John Prince's Street London W1G 0BJ

Installation of a Santander Cycle docking station (up to 30 docking points) and terminal…

24/07926/FULL 13 Nov 2024

2024

1 Cavendish Square London W1G 0LA

Introduction of a cavity drain membrane to the walls of a single room within the basement.

24/07179/LBC 14 Oct 2024

2024

264 Oxford Street London W1C 1DP

Display of internally illuminated hanging sign measuring 0.50m x 0.90. (Linked with 24/05…

24/05529/ADV 12 Aug 2024

2024

264 Oxford Street London W1C 1DP

Shopfront alteration. (Linked with 24/05529/ADV)

24/05528/FULL 12 Aug 2024

2018 Approved

1 Cavendish Square London W1G 0LA

Use of building as a restaurant/ drinking establishment (sui generis), addition of a mezz…

18/01899/FULL 11 Sep 2018

2018 Withdrawn

Allan House 10 John Prince's Street London W1G 0JR

Alterations to the colour of external facade and windows. Remedial work to cills.

18/07007/FULL 3 Sep 2018

2018 Approved

266 Oxford Street London W1C 1DR

Display of non-illuminated graphics to hoarding measuring 4.3m x 6.2m for a temporary per…

18/06652/ADV 14 Aug 2018

2018 Approved

37-38 Margaret Street London W1G 0JF

Renewal of Display for a temporary period of six months of a non-illuminated 'to let' boa…

18/05068/AD7 9 Jul 2018

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21-22 Great Castle Street London W1G 0HY

Installation of 4 external lights above the front door

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Westminster

Planning Authority Score

3.5/10

Below average

#221 of 296 councils

Relevant to this application:

Householder decisions

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.

One of the strictest councils

only 81% approved vs 90% nationally

These figures are council-wide context, not a prediction for this application. View full council performance

Westminster decision statistics

Based on MHCLG data, the year to March 2026

86%

Overall approval rate

Below avg (87%) #201 of 296

81%

Householder approved

Below avg (90%) #277 of 296

44%

Decided in 8 weeks

Below avg (63%) #258 of 296

28%

Extended time limit

Below avg (41%) #46 of 296

83%

Minor dwellings approved

12 decided (1-9 homes)

67%

Major dwellings approved

3 decided (10+ homes)

81%

Change of use approved

133 decided

4,602

Total decisions

648 refused in the year to March 2026

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.

33 Cavendish Square London W1G 0PS Data via plota.co.uk

Proposal

Application progress

Documents 205

Decision & officer reports 3

Statements & assessments 48

Plans & drawings 114

Application forms 1

Consultation & comments 11

Other documents 28

Site constraints 11

Building

Other new applications on this street

Nearby new applications

Important details

How this decision compares

Public comments

Consultation & key dates

Previous applications at this address

Nearby activity