Planning application
47 Chester Square London SW1W 9EA
Works: Extension Demolition
Relates to 25/08223/FULL, 26/04756/LBC
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
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)
As published by the council, reference 26/04763/NMA
Application record
- Reference
- 26/04763/NMA
- Category
- Amendments
- Status
- Pending
- Received
- 16 Jul 2026
- Validated
- 16 Jul 2026
- Postcode
- SW1W 9EA
Site history
Applications at this address on the Westminster register
This site has had 18 applications since 2025.
-
26/05757/LBC Decided
47 Chester Square London SW1W 9EA
Investigation of dampness and damp-proofing / waterproofing works to the lower ground floor.
-
26/05730/ADFULL Decided
47 Chester Square London SW1W 9EA
Detailed drawings and a bio-diversity management plan in relation to the green roof, pursuant to condition 13 of planning permission dated 11th June 2026 (25/08223/FULL)
-
26/05370/ADFULL Decided
47 Chester Square London SW1W 9EA
Details of facing materials pursuant to condition 4 of planning permission dated 02 June 2026 (RN: 25/08223/FULL)
-
26/05365/ADLBC Decided
47 Chester Square London SW1W 9EA
Details of facing materials pursuant to condition 3 of listed building consent dated 02 June 2026 (RN: 25/08226/LBC)
-
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)
-
26/04685/ADFULL Decided
47 Chester Square London SW1W 9EA
Details of the front entrance to be simplified to reflect a more traditional modest mews style and the existing entrance pursuant to condition 16 of planning permission dated 11 June 2026 (RN: 25/08223/FULL).
-
26/04684/ADFULL Decided
47 Chester Square London SW1W 9EA
Details of an updated site waste management plan Condition 5b of planning permission dated 11 June 2026 (RN: 25/08223/FULL).
-
26/04643/ADLBC Decided
47 Chester Square London SW1W 9EA
Details 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 (RN: 25/08226/LBC).
-
26/02962/ADFULL Awaiting decision
47 Chester Square London SW1W 9EA
Details of facing materials including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to discharge of condition 4 of planing permission dated 10th September 2025 (RN: 24/05476/LBC). Linked to 26/02877/ADLBC
-
26/02877/ADLBC Awaiting decision
47 Chester Square London SW1W 9EA
Details of facing materials including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to discharge of condition 3 of listed building consent dated 10th September 2025 (RN: 24/05476/LBC). Linked to 26/02962/ADFULL
Timeline
Dates from the published record
-
16 Jul 2026
Received by Westminster
-
25 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 10 September 2026, 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 65 days over the applications it decided in the last year.
Related applications
Cases linked to this one on the register
-
25/08223/FULL Awaiting decision
47 Chester Square London SW1W 9EA
Variation of Condition 1 of planning permssion dated 10th September 2025 (RN:24/05375/FULL) for the 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 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. (Linked with 25/08226/LBC)
-
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)
1 later application on the register refers to this one:
-
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)
What 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 amendment applications in a median of 54 days. More in our guide to how long planning decisions take.
About amendment applications
An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
47 Chester Square London SW1W 9EA
90% historically approved · decision due ~16 Oct
Investigation of dampness and damp-proofing / waterproofing works to the lower ground floor.
Decided Heritage and listed buildings 11 docs -
47 Chester Square London SW1W 9EA
89% historically approved · decision due ~4 Sep
Details 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 (RN: 25/08226/LBC).
Decided -
47 Chester Square London SW1W 9EA
89% historically approved · decision due ~16 Oct
Detailed drawings and a bio-diversity management plan in relation to the green roof, pursuant to condition 13 of planning permission dated 11th June 2026 (25/08223/FULL)
Decided -
60 Chester Square London SW1W 9EA
89% historically approved · decision due ~25 Aug
Detailed drawings of the CCTV, new external balustrades and dormers; and material samples, pursuant to conditions 4 and 5 of planning permission dated 9th November 2025 (RN 25/06259/FULL).
Decided Loft or dormer -
60 Chester Square London SW1W 9EA
89% historically approved · decision due ~25 Aug
Detailed drawings of the CCTV, new external balustrades and dormers; material samples; and amended third floor plan to show alteration to door opening, pursuant to conditions 4 (partial), 5, 9 of listed building consent dated 9th November 2025 (RN: 25/06260/LBC).
Decided Loft or dormer -
60 Chester Square London SW1W 9EA
89% historically approved · decision due ~11 Sep
Details of method statement for paint removal from stairs pursuant to partial discharge of condition 4 (Part 3) of listed building consent dated 11th November (RN: 25/06260/LBC).
Decided
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26/06201/NMA Awaiting decision
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26/06212/NMA Awaiting decision
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Amendment to Condition 12 (Whole Life Carbon) of planning permission dated 19th April 2024 (RN 23/04044/FULL) for Change of use from hotel to residential use (Class C3) with associated internal alterations to create 11 new units and external alterations comprising reconfiguration and recladding of the rear extension and restoration of the existing building. Namely to include additional requirement to evidence and justify where benchmarks cannot be achieved, consider mitigation measures and if none, evidence that all mitigation measures have been exhausted. (Linked with RN 26/06213/ADFULL)
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26/06211/NMA Awaiting decision
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Amendments to planning permission dated 21th July 2022 (RN:22/03521/FULL) for Variation of condition 5 of planning permission dated 11th April 2018 (17/10815/FULL) for the Use of the building for a temporary period of 20 years as a medical use (Use Class D1) personal to OM Tower LLP. Namely, to amend condition 3.
-
26/06199/NMA Awaiting decision
33 - 35 Praed Street London W2 1NR
Amendments to planning permission dated 24th Septmebr 2024 (RN:24/03287/FULL) for Use of lower ground and ground floors as supermarket with ancillary bakery (Class E); Use of first, second and third floors as aparthotel with 19 bedrooms (Class C1); Installation of plant machinery and solar thermal panels at roof level, Replacement of windows; and associated external alterations. Namely, Introduction of two shawarma grill machines in the supermarket area at ground floor level; the introduction of a new canopy to provide ventilation for the two shawarma grill machines; and amendments to the ventilation design for the lower ground floor bakery canopy extract.