54 Chester Square London SW1W 9EA
Proposal
Replacement roof to existing rear link extension to extend existing roof terrace with associated alterations to existing roof terraces, infilling two extract grilles in rear elevation and replacement of windows. (Linked with 25/08370/LBC)
- Received
- 17 November 2025
- Decided
- 20 February 2026
- Council
- City of Westminster
- Ward
- Knightsbridge & Belgravia
- ReceivedSubmitted17 Nov
- ValidatedValidated17 Nov
- Consult.Consultation
- TargetTarget Date12 Jan
- DecidedDecided20 Feb
Decided in 95 days (council typically 49)
This is a full planning application for an extension at 54 Chester Square London SW1W 9EA. Westminster has handled 4,496 applications of this type and approves 85% of them, typically deciding them in 74 days. This one was decided in 95 days, 3 weeks longer than Westminster's median. The site is in the Belgravia conservation area, with 8 listed buildings nearby. There have been 5 other applications at this address. In the past year there have been 407 applications across Knightsbridge & Belgravia. 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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Associated applications
- 20269 Mar
Detailed drawings of new infill roof, boundary wall / trellis pursuant to condition 4 of listed building…
ApprovedListed building consentRelated26/01612/ADLBC - 202517 Nov
Replacement roof to existing rear link extension to extend existing roof terrace with associated alterations…
This applicationApprovedFull25/08369/FULL - 202517 Nov
Replacement roof to existing rear link extension to extend existing roof terrace with associated alterations…
ApprovedListed building consentPart of25/08370/LBC
Planning history at this site
3 other applications at this property, newest first.
- 20262 Apr
Removal of two existing air-conditioning units from front lightwell and roof level, installation of two new…
RefusedListed building consent26/01217/LBC - 20262 Apr
Removal of two existing air-conditioning units from front lightwell and roof level, installation of two new…
RefusedApplication26/01216/FULL - 20269 Mar
Detailed drawings of new infill roof and boundary wall trellis pursuant to Condition 4 of planning permission…
ApprovedDischarge of conditions26/01509/ADFULL
Planning constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Belgravia
- Listed building: Grade II: 46-63 Chester Square Including No. 39 Eccleston StreetOn or next to this site
- Article 4 direction: Article 4 Basement Development Permitted Rights Removed
- 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.
Consultants on this application
- Smith Jenkins · Agent for this application
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