33 St James's Square London SW1Y 4JS

26/02814/FULLFull Planning Permission ApplicationApproved

Full

Approved on 11 September 2026

Site boundary (council red line)

Proposal

Variation of conditions 1, 11, 16, 24 and 25 of planning permission dated 19 October 2020 (RN: 20/03222/FULL) for the partial demolition and reconstruction of enlarged rear extension with additional storey; formation of terraces at ground, fourth, fifth and sixth floor levels; excavation to extend existing basement level; installation of plant machinery; internal alterations including installation of new grand stair; and associated external alterations in connection with increase in office floorspace (Class B1). NAMELY, to make changes to the approved drawings to allow changes to extend the lift overrun, remodelling of the roofscape, introduction of a secondary external staircase, omission of sixth floor east elevation terrace, minor amendments to elevations, plant reconfiguration and internal design changes. This also includes variations to Condition 11 (Roof Terrace), Condition 16 (Operational Management Plan), Condition 24 (Roof Terrace Hours) and Condition 25 (C`harles II Street crossover). [Linked to 26/02705/LBC]

Received: 28 April 2026
Council: City of Westminster
Ward: St James's
Agent: DP9 Limited

ReceivedReceived28 Apr
ValidatedValidated29 Apr
Consult.Consultation
TargetTarget Date24 Jun
DecidedDecided11 Sep

Decided in 135 days (council typically 49)

About this application

This is a full planning application for demolition at 33 St James's Square London SW1Y 4JS. Westminster has handled 4,484 applications of this type. This one was decided in 136 days, 12 weeks longer than Westminster's typical decision time. The site is in the St James's conservation area, with 12 listed buildings nearby. There have been 6 other applications at this address. In the past year there have been 474 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 4JS
Application type: Full Planning Permission Application
Scale / size: Small

Planning application dates

Date validated: 29 April 2026
Target decision date: 24 June 2026

Applicant and agent

Agent: DP9 Limited
Agent address: 100 Pall Mall London SW1Y 5NQ United Kingdom

Planning decision

Statutory period: 56 days

Additional information

Planning Portal ID: PP-14754452
Comments: 0
Documents: 63

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*: 33, ST JAMES'S SQUARE SW1 (See details for further address information)On this site · +1 more
Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
Flood zone 1: Low probability (rivers and sea)

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
28 Apr
Variation of conditions 1, 11, 16, 24 and 25 of planning permission dated 19 October 2020 (RN: 20/03222/FULL
This applicationApprovedVariation of conditions (s73)26/02814/FULL
2026
23 Apr
Amendment to lift overrun to provide level access to seventh floor in line with building and fire regulation…
ApprovedListed building consentPart of26/02705/LBC

Planning history at this site

6 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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