Sanctuary Buildings 20 Great Smith Street London SW1P 3BT

26/01716/ADFULLApproval of Details (Full PP)Approved

Discharge / amendments

Approved on 23 April 2026

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

Detailed proof that all the necessary licenses under the Highways Act have been secured/approved for the placement of any structures associated with the works on the public highway pursuant to condition 6 of planning permission dated 6th March 2026 (RN:25/07203/FULL).

Received: 13 March 2026
Council: City of Westminster
Ward: St James's

ReceivedReceived13 Mar
ValidatedValidated18 Mar
Consult.Consultation
TargetTarget Date13 May
DecidedDecided23 Apr

Decided in 36 days (council typically 49)

About this application

This is an application to discharge conditions at Sanctuary Buildings 20 Great Smith Street London SW1P 3BT. Westminster has handled 3,063 applications of this type. This one was decided in 41 days, 8 days quicker than Westminster's typical decision time. The site is in the Westminster Abbey and Parliament Square conservation area, with 8 listed buildings nearby. There have been 9 other applications at this address. In the past year there have been 478 applications across St James's. We hold 1,247 applications in total for the SW1P postcode area.

92% of conditions 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: SW1P 3BT
Application type: Approval of Details (Full PP)
Scale / size: Small

Planning application dates

Date validated: 18 March 2026
Target decision date: 13 May 2026

Applicant and agent

Agent: Purcell
Architect profile: PURCELL ARCHITECTURE LIMITED
Agent address: First Floor 15 Bermondsey Square London SE1 3UN United Kingdom

Planning decision

Statutory period: 56 days

Additional information

Comments: 0
Documents: 4

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.

Associated applications

2026
13 Mar
Detailed proof that all the necessary licenses under the Highways Act have been secured/approved for the…
This applicationApprovedDischarge of conditions26/01716/ADFULL
2025
16 Oct
Temporary modification and subsequent reinstatement of a single section of curtain walling spanning between…
WithdrawnListed building consentRelated25/07204/LBC
2025
6 Oct
Temporary modification and subsequent reinstatement of a single section of curtain walling spanning between…
ApprovedApplicationPart of25/07203/FULL

Planning history at this site

9 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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