Planning Application for 20, Great Smith Street, London, SW1P 3BT. Westminster (26/07412/FULL)

About this application

This is a planning application at 20, Great Smith Street, London, SW1P 3BT. Westminster has handled 804 applications of this type. It has been with the council since 30 October 2026 and is still awaiting a decision. The site is in the Westminster Abbey and Parliament Square conservation area, with 8 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 270 applications across SJW_22. We hold 1,247 applications in total for the SW1P 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).

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Application details

Postcode: SW1P 3BT
Application type: Full planning permission

Site constraints

Checking the site

2/3

Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Flood zone 3: High probability (rivers and sea)
Conservation area: Westminster Abbey And Parliament Square
Listed building: Grade II: Orchard HouseOn this site · +3 more
Article 4 direction: Article 4 Basement Development Permitted Rights Removed

Also checked, none recorded (21)

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, 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.

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.

Planning history at this site

8 other applications at this property, newest first.

Source: Westminster

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

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Before the decision

You may need a flood risk assessment. Drainage & flood risk consultants near this site

The site is in flood zone 3 (Environment Agency).

Price & Myers LLP
1.5 miLondon
Adrian Salt And Pang Limited
1.9 miLONDON
RTPI
Eckersley O'Callaghan Limited
2.1 miLondon

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