20 Carlton House Terrace London SW1Y 5AN

23/07605/FULLFull Planning Permission ApplicationApproved

Full

Approved on 11 April 2024

Council decision: Application PermittedDelegated (officer decision)

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

Installation of six doors to facilitate access onto the existing level 02 south terrace and the installation of two doors to facilitate access on to the existing level 01 north terrace.

Received: 1 November 2023
Decision level: Delegated (officer decision)
Public comments: 1
Council: City of Westminster
Ward: St James's

ReceivedReceived1 Nov
ValidatedValidated9 Nov
Consult.Consultation
TargetTarget Date4 Jan
DecidedDecided11 Apr

Decided in 154 days (council typically 49)

About this application

This is a full planning application at 20 Carlton House Terrace London SW1Y 5AN. Westminster has handled 4,484 applications of this type. This one was decided in 162 days, 16 weeks longer than Westminster's typical decision time. The site is in the St James's conservation area, with 13 listed buildings nearby. There have been 8 other applications at this address. In the past year there have been 478 applications across St James's. We hold 969 applications in total for the SW1Y postcode area.

86% of full 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: Full Planning Permission Application
Scale / size: Small

Planning application dates

Date validated: 9 November 2023
Consultation expiry: 13 December 2023
Target decision date: 4 January 2024

Applicant and agent

Agent: DP9
Agent address: 100 Pall Mall London SW1Y 5NQ

Planning decision

Statutory period: 56 days

Publicity

Last advertised: 22 November 2023
Advertisement expiry: 13 December 2023

Additional information

Planning Portal ID: PP-12570928
Documents: 21

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.

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

2024
2 May
Details of new doors to the front second floor terrace and rear first floor terrace pursuant to Condition 4…
ApprovedDischarge of conditions24/02923/ADFULL
2023
1 Nov
Installation of six doors to facilitate access onto the existing level 02 south terrace and the installation…
This applicationApprovedFull23/07605/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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