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20, Carlton House Terrace, SW1Y 5AN

25/03810/ADFULLApproval of details reserved by a condition (discharge)Refused
Discharge / amendments

Refused on 1 July 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

Details of manuafacturer's specification of light fittings (labelled FL1-DZ4, F1-D27 on the Carlton House Terrace elevation, F3-DZ14 on the Warwick House Street elevation and F2-DZ10 and F2-DZ9 on the Cockspur Court Facade) pursuant to condition 5 of planning permission dated 04 November 2024 (RN: 24/01754/FULL).

Submitted
24 June 2025
  1. Received24 Jun
  2. Validated
  3. Consult.
  4. Target
  5. Decided1 Jul

Decided in 7 days (council typically 49)

About this application

This is a planning application at 20, Carlton House Terrace, SW1Y 5AN. Westminster has handled 1,733 applications of this type. This one was decided in 7 days, 6 weeks quicker than Westminster's typical decision time. The site is in the St James's conservation area, with 17 listed buildings nearby. There have been 3 other applications at this address. In the past year there have been 276 applications across SJW_22. We hold 969 applications in total for the SW1Y postcode area.

89% of approval of details reserved by a condition (discharge) 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.Planning something similar? See what gets approved on your street

Application details

Postcode
SW1Y 5AN
Application type
Approval of details reserved by a condition (discharge)

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: St James's
  • Listed building: Grade II: The Royal Marines MemorialOn or next to this site · +1 more
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
  • Registered park and garden: St James'S ParkPart of the site
  • Brownfield land register: Admiralty Arch The Mall London SW1A 2DYRegister site at or near this address
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (19)

flood storage areas, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, 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 2026-11-03. 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

6 other applications at this property, newest first.

  1. 2025
    10 Oct

    Installation of external lighting to the eighth and tenth floor terraces.

    ApprovedApplication25/06975/FULL
  2. 2025
    18 Sep

    Retrospective full application for the installation of pergola structure at L8 terrace, new bi-fold doors at…

    ApprovedFull planning permission25/05651/FULL
  3. 2025
    29 Aug

    Details of manufacturer's specification of light fittings (labelled FL1-DZ4, F1-D27

    ApprovedAll Other25/06152/ADFULL
  4. 2025
    15 Aug

    Detailed design of the of entrance doors to the basement car park area including the vehicular entrance and…

    ApprovedAll Other25/05797/ADFULL
  5. 2025
    14 Aug

    Retrospective amendments to the glazed pavilion at tenth floor terrace level.

    ApprovedFull planning permission25/05734/FULL
  6. 2025
    9 Jun

    Detail of land contamination Phase 4 validation report pursuant to condition 4 of planning permission dated…

    ApprovedDischarge of conditions25/03891/ADFULL

Source: Westminster

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

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