100, Ebury Mews, SW1W 9NX
Proposal
Roof terrace at main roof level, internal remodelling to include a second-floor front mansard roof extension, excavation of a single-storey basement and associated external alterations.
- Received
- 2 May 2025
- Decided
- 23 July 2025
- Council
- City of Westminster
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.
- ReceivedSubmitted2 May
- ValidatedValidated
- Consult.Consultation
- TargetTarget Date
- DecidedDecided23 Jul
Decided in 82 days (council typically 49)
This is a planning application for an extension at 100, Ebury Mews, SW1W 9NX. Westminster has handled 42 applications of this type and approves 75% of them, typically deciding them in 56 days. This one was decided in 82 days, 4 weeks longer than Westminster's median. The site is in the Belgravia conservation area, with 13 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 131 applications across KBW_22. We hold 1,432 applications in total for the SW1W 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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Planning history at this site
1 other application at this property, newest first.
Planning constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Belgravia
- Listed building: Grade II: 42-45, CHESTER SQUARE SW1 (See details for further address information)On or next to this site
- Article 4 direction: Article 4 Basement Development Permitted Rights Removed
- Tree Preservation Order: Ref W633Protected tree on or next to this site
- Flood zone 1: Low probability (rivers and sea)
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 2026-10-09. 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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