Planning application
46 Chester Square London SW1W 9EA
Works: Extension Demolition Windows or glazing
Relates to 25/05494/FULL
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Internal and external alterations including refurbishment; replacement of ornamental scheme throughout; installation of new windows; erection of rebuilt extension at rear ground floor level between main house and the mews; erection of rear first floor level rebuilt balcony; lightwell extension; partial demolition and rebuilding of the mews building with evacuation of basement extension and roof level plant equipment. (Linked RN: 25/05494/FULL)
As published by the council, reference 25/05497/LBC
Application record
- Reference
- 25/05497/LBC
- Type
- Listed Building Consent Application
- Status
- Pending
- Received
- 1 Aug 2025
- Validated
- 1 Aug 2025
- Ward
- Knightsbridge & Belgravia
- Postcode
- SW1W 9EA
Site history
Applications at this address on the Westminster register
This site has had 5 applications since 2025: 1 approved, 0 refused.
-
25/07578/CLEUD Granted
46 Chester Square London SW1W 9EA
Use of 46 Chester Square and 46 Ebury Mews together as a single dwelling (Use Class C3).
-
25/05498/FULL Withdrawn
46 Chester Square London SW1W 9EA
Erection of rear first floor orangery extension. (Linked RN: 25/05499/LBC)
-
25/05494/FULL Decided
46 Chester Square London SW1W 9EA
External alterations including installation of new windows; erection of rebuilt extension at rear ground floor level between main house and the mews; erection of rear first floor level rebuilt balcony; lightwell extension, partial demolition and rebuilding of the mews building with excavation of basement extension and roof level plant equipment. (Linked RN: 25/05497/LBC)
-
25/05499/LBC Withdrawn
46 Chester Square London SW1W 9EA
Erection of rear first floor orangery extension. (Linked RN: 25/05498/FULL)
Timeline
Dates from the published record
-
1 Aug 2025
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 26 September 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Westminster took a median of 91 days over the applications it decided in the last year.
Related applications
Cases linked to this one on the register
-
25/05494/FULL Decided
46 Chester Square London SW1W 9EA
External alterations including installation of new windows; erection of rebuilt extension at rear ground floor level between main house and the mews; erection of rear first floor level rebuilt balcony; lightwell extension, partial demolition and rebuilding of the mews building with excavation of basement extension and roof level plant equipment. (Linked RN: 25/05497/LBC)
1 later application on the register refers to this one:
-
25/05494/FULL Decided
46 Chester Square London SW1W 9EA
External alterations including installation of new windows; erection of rebuilt extension at rear ground floor level between main house and the mews; erection of rear first floor level rebuilt balcony; lightwell extension, partial demolition and rebuilding of the mews building with excavation of basement extension and roof level plant equipment. (Linked RN: 25/05497/LBC)
Who's behind it
Company information only, from the register and Companies House
hgh Consulting Ltd Agent
423 applications on PlanIndex · across 42 councils · 90% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
39 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat happens while it is decided
This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided heritage and listed building applications in a median of 119 days. More in our guide to how long planning decisions take.
About heritage and listed building applications
Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
46 Chester Square London SW1W 9EA
Erection of rear first floor orangery extension. (Linked RN: 25/05499/LBC)
Withdrawn Full applications Extension 22 docs -
46 Chester Square London SW1W 9EA
External alterations including installation of new windows; erection of rebuilt extension at rear ground floor level between main house and the mews; erection of rear first floor level rebuilt balcony; lightwell extension, partial demolition and rebuilding of the mews building with excavation of basement extension and roof level plant equipment. (Linked RN: 25/05497/LBC)
Decided Full applications Extension Demolition +1 50 docs -
46 Chester Square London SW1W 9EA
Erection of rear first floor orangery extension. (Linked RN: 25/05498/FULL)
Withdrawn Heritage and listed buildings Extension 18 docs -
47 Chester Square London SW1W 9EA
Details of Site Waste Management Plan, pursuant to condition 5 (A) of planning permission dated 10 September 2025 (RN 24/05375/FULL)
Granted Full applications 6 docs -
46 Chester Square London SW1W 9EA
Use of 46 Chester Square and 46 Ebury Mews together as a single dwelling (Use Class C3).
Granted Lawful development 51 docsDomestic -
47 Chester Square London SW1W 9EA
Rebuilding of the rear of the top floor mansard roof to the main house with new dormer windows and new monopitch rooflight to the stairwell below; awning removed to the closet wing; downpipes re-routed to rear elevation of main house; revisions to detailed design of glazed link; front door to Ebury Mews entrance enlarged and addition of flues above roof to the mews house.
Granted Heritage and listed buildings Loft or dormer Windows or glazing 50 docs
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