50 Berkeley Street London W1J 8HA Data via plota.co.uk

26/04542/NMA - Non-material amendments Approved
Commercial & major worksDemolitionExtensions & alterations

Proposal

Amendments to planning permission dated 01 December 2021 (RN: ) for the: Erection of two 2 storey infill extensions to the set-back corners at fifth floor level on the Berkeley Street/Mayfair Place elevation and Berkeley Street/Stratton Street elevation, the demolition of the existing mansard roof and its replacement with a single sheer storey (to match the lower floors) on the Mayfair Place elevation and Stratton Street elevation, erection of an additional set back floor at eighth floor level, plus roof top plant room. Associated external alterations, including to existing ground floor entrances, and alterations to the existing plant/ducts. Use of basement (part), ground (part) and 1st to 8th floor as offices (Class E). NAMELY, to allow swapping the Male & Female shower & change areas; reducing the number of female showers from 11 to 8 - and total showers from 27 to 24; layout changes to location of lockers; and associated works. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
8 Jul 2026
✓
Approved
29 Jul 2026

Approved on 29 Jul 2026 · Delegated Decision · Last checked 6 Aug 2026

Documents 10

Decision & officer reports 3

PDF GRANT NON MATERIAL AMENDMENT Decision Notice · 29 Jul 2026 View ↗ PDF DELEGATED REPORT Report · 29 Jul 2026 View ↗ PDF DELEGATED REPORT Report · 29 Jul 2026 View ↗

Plans & drawings 3

PDF LOCATION PLAN Location Plan · 8 Jul 2026 View ↗ PDF ARRANGEMENT PLANS LEVEL B1 Drawing · 8 Jul 2026 View ↗ PDF PROPOSED BASEMENT PLAN Drawing · 8 Jul 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 8 Jul 2026 View ↗

Other documents 3

PDF ACK - NON-MATERIAL AMENDMENT Background Papers · 29 Jul 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 9 Jul 2026 View ↗ PDF CBRE COVER LETTER Background Papers · 8 Jul 2026 View ↗

All documents on the council site ↗

Associated applications 3

  • Part of

    FullApprovedcouncil archive

Site constraints 13

Mayfair conservation area
Demolition needs planning permission and permitted development is restricted.
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 ↗
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.
29 listed buildings within 150 m
Nearest: Devonshire House, Grade II, 22 m away · 1 Grade I, 6 Grade II*, 21 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 29 with distances
Historic England ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
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.
National infrastructure project 863 m away: Thames Tideway Tunnel
The site is 863 m from the project boundary. Waste water treatment, decided. The project page says whether consent was granted. Also within 2 km: London Strategic Heat Main Project (at pre-application, 664 m).
Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.
Planning Inspectorate project page ↗
Registered park or garden 99 m away: Green Park
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
Also on the record
Inside the City of Westminster built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square; Metropolitan Open Land 81 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 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

Floor area18,651 m² (200,757 sq ft)
Energy ratingD (asset rating 89)
UseB1 Offices and Workshop businesses
HeatingAir Conditioning

From the energy performance certificate lodged in August 2018, 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
Non-material amendments
Postcode
W1J 8HA
Received
8 Jul 2026
Validated
8 Jul 2026
Ward
West End
Case officer
Show
Target decision
5 Aug 2026
Decision
Application Permitted
Decision date
29 Jul 2026
Decision level
Delegated Decision
Agent
CBRE Ltd
Leaseholder
Show

How this decision compares

Decided in 21 days from validation, 35 days faster than Westminster's median of 56 for commercial and major works. Approved, as 92% of commercial and major works here are.

52%decided within 8 weeks
92%approved
235decided in the last year

Plota live figures for commercial and major works decided by Westminster in the last twelve months, from validation. Westminster decision record →

Public comments

No public comments yet.

Last counted 6 Aug 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14928434
Planning Portal ref
PP-14928434
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2025 Approved
Amendments to planning permission dated 1st December 2021 (RN:20/06093/FULL) for Erection…
25/05290/NMA
2024
Details of an independent review of the environmental sustainability features showing tha…
24/06406/ADFULL
2024
Amendments to planning permission dated 1st december 2021 (RN 20/06093/FULL) for the erec…
24/05381/NMA
2023 Refused
Amendments to planning permission dated 01 December 2021 (RN: 20/06093/FULL) for, 'Erecti…
23/08344/NMA
2023
Detailed drawings of new roof storeys and plant screens pursuant to condition 24 of plann…
23/06058/ADFULL
2023
Amendments to planning permission dated 01 December 2021 (RN: 20/06093/FULL) for erection…
23/04047/NMA
2023
Details of facing materials pursuant to Condition 22 of planning permission dated 01 Dece…
23/03488/ADFULL
2023 Approved
Details of environmental sustainability features pursuant to Condition 15 of planning per…
23/02144/ADFULL
2023 Approved
Details of peak surface water rates pursuant to Condition 13 of planning permission dated…
23/02704/ADFULL
Within ~100m

Nearby activity

2025
38 Dover Street London W1S 4NL
Display for a temporary period of six months of a non-illuminated estate agent board loca…
25/07668/AD7
2025
11 Berkeley Street London W1J 8DS
Display of non illuminated fascia sign measuring 2m X 0.6m
25/07116/ADV
2025
11 Berkeley Street London W1J 8DS
Installation of a new shopfront.
25/07115/FULL
2025 Withdrawn
Basement Rear And Suites G01 To G03 Ground Floor 41 - 42 Dover Street London W1S 4NS
Installation of a traditionally designed painted metal gate to the passageway between Dov…
25/04034/FULL
2025
13 Berkeley Street London W1J 8DU
Fit out of internal office areas to existing 4th, 5th and 6th floors including Strip out…
25/06530/LBC
2025 Approved
40 Dover Street London W1S 4NP
T1: London plane: Selectively reduce canopy spread on southeast side by 2-2.5m away from…
25/04809/TCA
2025 Approved
51 Berkeley Street London W1J 8NL
Installation of two replacement external ATM machines, and associated surround signage. (…
25/04213/LBC
2025 Approved
51 Berkeley Street London W1J 8NL
Installation of two replacement external ATM machines, and associated surround signage. (…
25/04342/FULL
2025 Approved
51 Berkeley Street London W1J 8NL
Display of non illuminated ATM surround signage measuring 1.76m x 2.13m. (Linked with 25/…
25/04215/ADV
2025
Basement Rear And Suites G01 To G03 Ground Floor 41 - 42 Dover Street London W1S 4NS
Installation of a traditionally designed painted metal gate to the passageway between Dov…
25/04035/LBC
2025
Pitch 1667 Piccadilly London W1J 9DZ
Retention of a replacement retail kiosk (Class A1) on the public highway to the west of T…
25/01412/FULL
2025
Stratton House 5 Stratton Street London W1J 8LA
Replacement of roof plant, including internal refurbishment works at sixth floor. (Linked…
25/00408/LBC
2025
Stratton House 5 Stratton Street London W1J 8LA
Replacement of roof plant, including internal refurbishment works at sixth floor. (Linked…
25/00407/FULL
2024
Devonshire House Mayfair Place London W1J 8AJ
Proposed internal CAT A refurbishment to the second floor office, second floor common par…
24/08277/LBC
2024
8 - 9 Berkeley Street London W1J 8DW
Use of existing flat roof as roof garden, reconstruction and extension of stair cores, re…
24/07177/FULL
2024
Devonshire House Mayfair Place London W1J 8AJ
Office amenity terrace alterations and access improvements including a new glass balustra…
24/06628/LBC
2024
Devonshire House Mayfair Place London W1J 8AJ
Office amenity terrace alterations and access improvements including a new glass balustra…
24/06627/FULL
2024
40 Dover Street London W1S 4NP
Removal of solid roofed structure and installation of a lightweight, cloister-style glaze…
24/02411/FULL
2023 Approved
51 Berkeley Street London W1J 8NL
Removal of the external left hand ATM machine to be replaced with a Smart ATM. (Linked wi…
23/08878/LBC
2023 Approved
49 - 50 Dover Street London W1S 4NY
Use of the public highway for the placing of 6 tables, 12 chairs, 4 free-standing plant p…
23/06370/TCH
2021 Approved
Langans Brasserie Stratton Street London W1J 8LB
Refurbishment and minor alterations to the ground floor facade.
21/05377/FULL
2021 Approved
Langans Brasserie Stratton Street London W1J 8LB
Refurbishment and minor alterations to the ground floor facade.
21/05709/LBC
2021 Approved
53 Berkeley Street London W1J 8EX
Display of externally illuminated projecting sign measuring 0.91m X 0.62m
21/04633/ADV
2020 Approved
50 Stratton Street London W1J 8LL
Demolition of existing roof storeys and rebuilding to create a new sheer storey at fifth…
20/06105/FULL
2020 Approved
50 Berkeley Street London W1J 8DJ
Erection of two 2 storey infill extensions to the set-back corners at fifth floor level o…
20/06093/FULL
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
Source: MHCLG planning statistics · See full council rankings

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

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.

Leaseholders: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.