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4 Cowley Street London SW1P 3NB

14/04797/FULLApplication for full Planning PermissionApproved
Full

Approved on 22 July 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

Variation of Condition 1 (plan numbers condition) of planning permission dated 25 February 2014 (RN: 13/09291) for alterations to front and rear fenestration; reduce rear ground floor extension and installation of new stair; landscaping and new screening within rear gardens; creation of terrace with associated new railings and access hatch at roof level; installation of plant within enclosure at roof level; excavation at basement level to facilitate installation of swimming pool all in connection with use of the building as a single dwelling house namely, internal alterations at front basement level, increase railing height to rear terrace at second floor level, change to third floor roof access stair and roof plant and terrace general arrangement to be revised.

Received
20 May 2014
Decision level
Delegated (officer decision)
Ward
St James's
  1. Received20 May
  2. Validated3 Jun
  3. Consult.
  4. Target29 Jul
  5. Decided22 Jul

Decided in 49 days (council typically 49)

About this application

This is a full planning application for an extension at 4 Cowley Street London SW1P 3NB. Westminster has handled 4,484 applications of this type. This one was decided in 63 days, 2 weeks longer than Westminster's typical decision time. The site is in the Smith Square conservation area, with 20 listed buildings nearby. There have been 5 other applications at this address. In the past year there have been 475 applications across St James's. We hold 1,247 applications in total for the SW1P 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
SW1P 3NB
Application type
Application for full Planning Permission
Scale / size
Small

Planning application dates

Date validated
3 June 2014
Consultation expiry
11 July 2014
Target decision date
29 July 2014
Committee meeting
22 July 2014

Applicant and agent

Agent
MWA
Agent address
28 Margaret St London W1W 8RZ

Planning decision

Statutory period
56 days

Publicity

Last advertised
20 June 2014
Advertisement expiry
11 July 2014
Site notice start
17 June 2014
Site notice end
8 July 2014

Additional information

Planning Portal ID
PP-03403176
Comments
0
Documents
22

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: Smith Square
  • Listed building: Grade II: 4, Cowley Street Sw1On this site · +10 more
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Tree Preservation Order: Ref W516Protected tree on or next to this site
Also checked, none recorded (20)

flood storage areas, 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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