Trafalgar Buildings 1 - 3 Whitehall London SW1A 2DD
Proposal
Conversion of part basement, part ground and the upper floors of the existing buildings, and erection of a rear infill extension and external alterations to front facades and roof level, for use as a hotel and reprovision of retail units at ground level. [Linked to 25/09254/FULL]
- Received
- 22 December 2025
- Decided
- 15 June 2026
- Council
- City of Westminster
- ReceivedSubmitted22 Dec
- ValidatedValidated
- Consult.Consultation
- TargetTarget Date
- DecidedDecided15 Jun
Decided in 175 days
This is a planning application for an extension at Trafalgar Buildings 1 - 3 Whitehall London SW1A 2DD. Westminster has handled 26,489 applications of this type and approves 88% of them, typically deciding them in 54 days. This one was decided in 175 days, 17 weeks longer than Westminster's median. The site is in the Trafalgar Square conservation area, with 16 listed buildings nearby. There have been 3 other applications at this address. We hold 1,240 applications in total for the SW1A postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Westminster
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Associated applications
- 202625 Aug
Detailed site investigation of potential land contamination and details of a written scheme of investigation…
PendingAll OtherRelated26/05447/ADFULL - 202522 Dec
Conversion of part basement, part ground and the upper floors of the existing buildings, and erection of a…
ApprovedApplicationPart of25/09254/FULL - 202522 Dec
Conversion of part basement, part ground and the upper floors of the existing buildings, and erection of a…
This applicationApprovedListed building consent25/09255/LBC
Planning history at this site
4 other applications at this property, newest first.
- 20269 Sep
Display of non illuminated printed stretched vinyl measuring 10m X 6m, 92.8m x 21.7m, and 10m X 6m with inset…
PendingAdvertisement consent26/06168/ADV - 202627 Aug
Display of printed scaffolding shroud incorporating 1:1 replica of building facade with 2x inset advertising…
RefusedAdvertisement consent26/05876/ADV - 202514 Apr
Conversion of part basement, part ground and the upper floors of the existing buildings, and erection of a…
RefusedListed building consent24/07459/LBC - 202514 Apr
Conversion of part basement, part ground and the upper floors of the existing buildings, and erection of a…
RefusedListed building consent24/07458/FULL
Planning constraints
Designations that overlap or adjoin the site outline.
- Flood zone 2: Medium probability (rivers and sea)Part of the site
- Conservation area: Trafalgar Square
- Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
- Brownfield land register: 49 Charing Cross London SW1A 2DXRegister site at or near this address
Also checked, none recorded (20)
flood storage areas, 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 2026-10-09. 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.
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