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37, 40, Berners Street, W1T 3NA

25/04106/FULLFull planning permissionApproved
Full

Approved on 5 September 2025

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Infilling of the rear lightwell at lower ground and ground floor level, creation of terraces/balconies within the rear lightwell on the upper floors at first to fourth floor level for the existing offices and the creation of a new plant room at first floor level and at main roof level (Class E).

Submitted
20 June 2025
  1. Received20 Jun
  2. Validated
  3. Consult.
  4. Target
  5. Decided5 Sep

Decided in 77 days (council typically 49)

About this application

This is a planning application at 37, 40, Berners Street, W1T 3NA. Westminster has handled 804 applications of this type. This one was decided in 77 days, 4 weeks longer than Westminster's typical decision time. The site is in 6 listed buildings nearby. There have been 2 other applications at this address. In the past year there have been 469 applications across WEW_22. We hold 323 applications in total for the W1T postcode area.

84% of full planning permission 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.See what's approved near your address

Application details

Postcode
W1T 3NA
Application type
Full planning permission

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (23)

flood storage areas, conservation 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, heritage coasts and brownfield registers.

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.

Associated applications

  1. 2025
    20 Jun

    Infilling of the rear lightwell at lower ground and ground floor level, creation of terraces/balconies within…

    This applicationApprovedFull planning permission25/04106/FULL
  2. 2025
    18 Jun

    Infilling of the ground floor undercroft along Mortimer Street (Class E), replacement of ground floor…

    ApprovedFull planning permissionFiled alongside25/04048/FULL

Source: Westminster

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

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