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Ames House 6 Duke Of York Street London SW1Y 6LA

14/03019/FULLApplication for full Planning PermissionApproved
Full

Approved on 20 June 2014

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

Reconstruction /extension of fifth floor and roof level to provide new 6th floor with rear dormers; replacement windows at third and fourth floor level with double glazed units; refurbishment and alteration of entrance at 6 Duke of York Street; and installation of 3 air condenser units at rear first floor level, all in connection with the use of the third to sixth floor levels as 3 residential units (1 x 2-bed, 1x 3-bed and 1x4-bed).

Received
31 March 2014
Decision level
Delegated (officer decision)
Ward
St James's
Agent
CgMs Consulting
  1. Received31 Mar
  2. Validated2 Apr
  3. Consult.
  4. Target28 May
  5. Decided20 Jun

Decided in 79 days (council typically 49)

About this application

This is a full planning application for an extension at Ames House 6 Duke Of York Street London SW1Y 6LA. Westminster has handled 4,484 applications of this type. This one was decided in 81 days, 5 weeks longer than Westminster's typical decision time. The site is in the St James's conservation area, with 20 listed buildings nearby. There have been 2 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 6LA
Application type
Application for full Planning Permission
Scale / size
Small

Planning application dates

Date validated
2 April 2014
Consultation expiry
9 May 2014
Target decision date
28 May 2014
Committee meeting
20 June 2014

Applicant and agent

Agent
CgMs Consulting
Agent address
7th Floor 140 London Wall London EC2Y 5DN United Kingdom

Planning decision

Statutory period
56 days

Publicity

Last advertised
18 April 2014
Advertisement expiry
9 May 2014
Site notice start
14 April 2014
Site notice end
5 May 2014

Additional information

Planning Portal ID
PP-03244335
Comments
0
Documents
12

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 I: Chatham HouseOn or next to this site · +3 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.

© 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.

Source: Westminster

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

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