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50 Berkeley Street London W1J 8HA

26/04542/NMANon-material amendmentsApproved
Discharge / amendments

Approved on 29 July 2026

Site boundary (council red line)

Proposal

Amendments to planning permission dated 01 December 2021 (RN: 20/06093/FULL) 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.

Received
8 July 2026
Ward
West End
Agent
CBRE Ltd
  1. Received8 Jul
  2. Validated8 Jul
  3. Consult.
  4. Target5 Aug
  5. Decided29 Jul

Decided in 21 days (council typically 49)

About this application

This is an application to amend a permission at 50 Berkeley Street London W1J 8HA. Westminster has handled 604 applications of this type. This one was decided in 21 days, 4 weeks quicker than Westminster's typical decision time. The site is in the Mayfair conservation area, with 6 listed buildings nearby. There have been 2 other applications at this address. In the past year there have been 484 applications across West End. We hold 940 applications in total for the W1J postcode area.

88% of amendment applications at City of Westminster were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
W1J 8HA
Application type
Non-material amendments
Scale / size
Small

Planning application dates

Date validated
8 July 2026
Target decision date
5 August 2026

Applicant and agent

Agent
CBRE Ltd
Agent address
Henrietta House Henrietta Place London W1G 0NB

Planning decision

Statutory period
28 days

Additional information

Planning Portal ID
PP-14928434
Comments
0
Documents
6

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Mayfair
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
  • Brownfield land register: Nightingale House 65 Curzon Street London W1J 8PERegister site at or near this address
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (21)

flood storage areas, listed buildings, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves and heritage coasts.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Source: Westminster

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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