Planning application
25/07578/CLEUD
46 Chester Square London SW1W 9EA
Proposal
Confirm the lawful planning use of the site is as a single dwellinghouse (Use Class C3).
As published by the council, reference 25/07578/CLEUD
Timeline
Dates from the published record
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20 Oct 2025
Received by Westminster
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21 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About lawful development applications
How this application type works
A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.
Nearby applications
Within 500 metres
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26/04756/LBC Awaiting decision
47 Chester Square London SW1W 9EA
Rebuilding of the rear of the top floor mansard roof to the main house, with dormer windows, and new monopitch rooflight to the stairwell below; removal of awning to the closet wing and parapet raised by four brick courses to match existing height, with Portland Stone coping added; re-route downpipes to rear elevation of main house; amended detailed design of glazed link; enlarge front door to Ebury Mews entrance; addition of flues above roof to the mews house; strengthening to existing floor joists where required within main house; improvements to building services. (Linked with 26/04763/NMA)
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26/04643/ADLBC Awaiting decision
47 Chester Square London SW1W 9EA
Detailed drawing of the front entrance to be simplified to reflect a more traditional modest mews style and the existing entrance; Pursuant to condition 8 of Listed Building Consent dated 11 June 2026 (25/08226/LBC)
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26/04763/NMA Awaiting decision
47 Chester Square London SW1W 9EA
Amendments to planning permission dated 11 June 2026 (25/08223/FULL) for: demolition of No 47 Ebury Mews and the erection of a two-storey replacement mews building with new basement level. Alterations and refurbishment to No. 47 Chester Square including demolition of modern rear additions, reinstatement of lower ground floor lightwell to the rear and extension of existing lower ground floor. Construction of ground floor link from 47 Chester Square to 47 Ebury Mews, consolidation of amenity courtyard at ground floor level, other internal and external works of refurbishment to 47 Chester Square namely, to allow alterations to link structure between the main house and mews design, and the rear roof profile to the main house. (Linked with 26/04756/LBC)
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25/05498/FULL Withdrawn
46 Chester Square London SW1W 9EA
Erection of rear first floor orangery extension. (Linked RN: 25/05499/LBC)
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25/05497/LBC Awaiting decision
46 Chester Square London SW1W 9EA
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)
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25/05494/FULL Awaiting decision
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)
Other lawful development applications
In Westminster
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26/04958/CLEUD Awaiting decision
1 Sussex Square London W2 2SJ
Use of a building as mixed use as C3 (single residential dwelling) and C1 (short-stay accommodation)
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26/04971/CLOPUD Awaiting decision
Flat 23 192 Emery Hill Street London SW1P 1PN
Replacement of the existing single-glazed moving window sashes, casement panels, and balcony door leaves with slimline double-glazed timber units. The existing outer timber frames fixed into the building will be retained and will not be removed or altered. The replacement units will match the existing windows in material, design, glazing bar pattern, opening method, dimensions, and external appearance. No alterations are proposed to the building structure, external walls, openings, or window frame sizes. No new access, alterations to existing access, new streets, hardstandings, means of enclosure, or drainage works are proposed. The precise location and details of the replacement windows are shown on the accompanying drawings.
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26/04832/CLEUD Awaiting decision
Basement Flat 117 Kilburn Park Road London NW6 5LB
Use or Development in respect of the detached single-storey outbuilding within the rear garden of the applicants property.
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26/04856/CLOPUD Awaiting decision
Flat 15 192 Emery Hill Street London SW1P 1PN
Replacement of the existing single-glazed moving sashes, casement panels, and balcony door leafs with slimline double glazed timber units within the fully retained existing external timber frames.
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26/04632/CLOPUD Awaiting decision
165 Oliphant Street London W10 4EA
Installation of solar panels to generate clean, renewable energy from sunlight and reduce reliance on grid electricity and fossil fuels.