45 St James's Place London SW1A 1NS
Proposal
Single storey ground floor rear extension to light-well and installation of windows to front and rear elevations.
- Received
- 9 November 2017
- Decided
- 8 March 2018 · Application Permitted
- Decision level
- Delegated (officer decision)
- Council
- City of Westminster
- Ward
- St James's
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.
- ReceivedReceived9 Nov
- ValidatedValidated10 Nov
- Consult.Consultation
- TargetTarget Date5 Jan
- DecidedDecided8 Mar
Decided in 118 days (council typically 49)
This is a full planning application for a rear extension at 45 St James's Place London SW1A 1NS. Westminster has handled 4,484 applications of this type and approves 85% of them, typically deciding them in 74 days. This one was decided in 119 days, 6 weeks longer than Westminster's median. The site is in the St James's conservation area, with 20 listed buildings nearby. There have been 3 other applications at this address. In the past year there have been 531 applications across St James's. We hold 1,246 applications in total for the SW1A postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Westminster
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Associated applications
- 20179 Nov
Single storey ground floor rear extension to light-well and installation of windows to front and rear…
This applicationApprovedFull17/10009/FULL - 20176 Nov
Single storey ground floor rear extension to light-well and installation of windows to front and rear…
ApprovedListed building consentRelated17/09877/LBC
Planning history at this site
2 other applications at this property, newest first.
Planning constraints
Designations that overlap or adjoin the site outline.
- Conservation area: St James's
- 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 2026-10-09. 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.
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