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20, Great Smith Street, SW1P 3BT

25/05903/LBCListed building consentApproved

Approved on 17 February 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

Replacement of raised modern floors at a higher level and installation of internal fall protection at first through third floors of Orchard House.

Submitted
20 August 2025
  1. Received20 Aug
  2. Validated
  3. Consult.
  4. Target
  5. Decided17 Feb

Decided in 181 days (council typically 49)

About this application

This is a listed building consent application at 20, Great Smith Street, SW1P 3BT. Westminster has handled 675 applications of this type. This one was decided in 181 days, 19 weeks longer than Westminster's typical decision time. 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.

90% of listed building consent 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
Listed building consent

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.

© 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.

Planning history at this site

10 other applications at this property, newest first.

  1. 2026
    30 Oct

    Installation of Automatic Opening Vents as part of essential fire strategy

    PendingFull planning permission26/07412/FULL
  2. 2026
    27 Apr

    Installation of automatic opening vents to window openings at levels 00, 01, 02 and 03 on east and west…

    ApprovedFull Planning Permission Application26/02778/FULL
  3. 2026
    13 Mar

    Detailed proof that all the necessary licenses under the Highways Act have been secured/approved for the…

    ApprovedDischarge of conditions26/01716/ADFULL
  4. 2025
    15 Dec

    Replacement of defective lintels above three windows on the sixth floor.

    ApprovedListed building consent25/09049/LBC
  5. 2025
    16 Oct

    Temporary modification and subsequent reinstatement of a single section of curtain walling spanning between…

    WithdrawnListed building consent25/07204/LBC
  6. 2025
    15 Oct

    Installation of external pipework between the first and second floors on the south elevation.

    ApprovedApplication25/06339/FULL

Source: Westminster

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

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