Planning application
23 Grafton Street London W1S 4EY
Relates to 26/00554/LBC
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Sample of the York stone to be used for the new front steps to ground floor level; pursuant to condition 7 of planning permission dated 13th October 2026 (26/00554/LBC)
As published by the council, reference 26/07376/ADFULL
Application record
- Reference
- 26/07376/ADFULL
- Status
- Pending
- Received
- 28 Oct 2026
- Validated
- 28 Oct 2026
- Postcode
- W1S 4EY
Site history
Applications at this address on the Westminster register
This site has had 10 applications since 2025: 3 approved, 0 refused.
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26/06193/ADFULL Decided
23 Grafton Street London W1S 4EY
Details of all new windows and doors; pursuant to condition 10(B) of planning permission dated 17th June 2026 (25/01604/FULL)
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26/01670/ADFULL Awaiting decision
23 Grafton Street London W1S 4EY
Detailed drawings of the alterations to party walls and buttress pursuant to part conditions 10a of planning permission dated 17th June 2025 (RN 25/01604/FULL)
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26/01669/ADLBC Awaiting decision
23 Grafton Street London W1S 4EY
Detailed drawings of All new windows and doors pursuant to part conditions 4b of listed building consent dated 17th June 2025 (RN 25/01605/LBC)
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26/01033/ADFULL Granted
23 Grafton Street London W1S 4EY
Detailed drawings, including sections (scale 1:20 and 1:5) of new rooflight pursuant to Condition 10 (B) (part) of planning permission dated 17th June 2025 (RN: 25/01604/FULL)
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26/01025/ADLBC Granted
23 Grafton Street London W1S 4EY
Detailed drawings, including sections of rooflight to mansard roof pursuant to Condition 4 (B) (part) of listed building dated 17th June 2025 (RN: 25/01605/LBC)
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26/00782/FULL Awaiting decision
23 Grafton Street London W1S 4EY
Variation of Conditions 7 and 8 of planning permission dated 17 June 2025 (RN: 25/01604/FULL) for 'Phased development including replacement of rear basement roof slab and creation of a rear extension at ground floor. Removal of rear ground floor toilet block and external fire escape stairs. Demolition of existing, altered mansard roof and construction of a new mansard roof with dormer windows and concealed plant enclosure. Extension of existing lift to serve fourth floor. Replacement of third floor rear windows with double glazed sash windows. Minor internal reconfigurations. Continued use of ground floor as retail (Use Class E(a)) and basement, first, second, third and fourth as office (Use Class E(g))'. NAMELY, to enable the use the lower ground to fourth floor levels for either Class E(a) retail and/or Class E(g) office use.
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26/00555/NMA Granted
23 Grafton Street London W1S 4EY
Amendments to planning permission dated 17 June 2025 (RN: 25/01604/FULL) for Phased development including replacement of rear basement roof slab and creation of a rear extension at ground floor. Removal of rear ground floor toilet block and external fire escape stairs. Demolition of existing, altered mansard roof and construction of a new mansard roof with dormer windows and concealed plant enclosure. Extension of existing lift to serve fourth floor. Replacement of third floor rear windows with double glazed sash windows. Minor internal reconfigurations. Continued use of ground floor as retail (Use Class E(a)) and basement, first, second, third and fourth as office (Use Class E(g)). NAMELY, to retain ground floor rear door, retain existing floor slab and rear void, retain ground-floor landing stairs in existing arrangement, and amendment of Condition 11 to require details of waste and recycling to be submitted for approval prior to occupation.
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26/00554/LBC Decided
23 Grafton Street London W1S 4EY
Phased development including retention of rear basement roof slab (previously proposed for demolition and replacement), infilling of void creating an internal lightwell and the creation of a rear extension at ground floor. Removal of rear ground floor toilet block and external fire escape stairs. Demolition of existing, altered mansard roof and construction of a new mansard roof with dormer windows and concealed plant enclosure. Extension of existing lift to serve fourth floor. Replacement of third floor rear windows with double glazed sash windows. Minor internal reconfigurations.
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25/09056/ADFULL Awaiting decision
23 Grafton Street London W1S 4EY
Details of waste storage pursuant to condition 11 of planning permission dated 17 June 2025 (RN: 25/01604/FULL)
Timeline
Dates from the published record
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28 Oct 2026
Received by Westminster
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2 Nov 2026
Added to PlanIndex
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Decision
Awaiting decision
Decision expected by 23 December 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 91 days over the applications it decided in the last year.
Related applications
Cases linked to this one on the register
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26/00554/LBC Decided
23 Grafton Street London W1S 4EY
Phased development including retention of rear basement roof slab (previously proposed for demolition and replacement), infilling of void creating an internal lightwell and the creation of a rear extension at ground floor. Removal of rear ground floor toilet block and external fire escape stairs. Demolition of existing, altered mansard roof and construction of a new mansard roof with dormer windows and concealed plant enclosure. Extension of existing lift to serve fourth floor. Replacement of third floor rear windows with double glazed sash windows. Minor internal reconfigurations.
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's median decision took 91 days. More in our guide to how long planning decisions take.
About this record
The published feed does not state which type of application this is; the register entry on Westminster's portal will say. Our guide explains the common types.
Nearby applications
Within 0.3 miles
-
23 Grafton Street London W1S 4EY
88% historically approved · decision due ~8 May
Detailed drawings of the alterations to party walls and buttress pursuant to part conditions 10a of planning permission dated 17th June 2025 (RN 25/01604/FULL)
Awaiting decision Full applications 12 docs -
23 Grafton Street London W1S 4EY
89% historically approved · decision due ~8 May
Detailed drawings of All new windows and doors pursuant to part conditions 4b of listed building consent dated 17th June 2025 (RN 25/01605/LBC)
Awaiting decision Conditions Windows or glazing 13 docs -
23 Grafton Street London W1S 4EY
88% historically approved · decision due ~9 Feb
Details of waste storage pursuant to condition 11 of planning permission dated 17 June 2025 (RN: 25/01604/FULL)
Awaiting decision Full applications 5 docs -
23 Grafton Street London W1S 4EY
Phased development including retention of rear basement roof slab (previously proposed for demolition and replacement), infilling of void creating an internal lightwell and the creation of a rear extension at ground floor. Removal of rear ground floor toilet block and external fire escape stairs. Demolition of existing, altered mansard roof and construction of a new mansard roof with dormer windows and concealed plant enclosure. Extension of existing lift to serve fourth floor. Replacement of third floor rear windows with double glazed sash windows. Minor internal reconfigurations.
Decided Heritage and listed buildings Extension Loft or dormer +2 47 docs -
23 Grafton Street London W1S 4EY
88% historically approved · decision due ~7 Apr
Variation of Conditions 7 and 8 of planning permission dated 17 June 2025 (RN: 25/01604/FULL) for 'Phased development including replacement of rear basement roof slab and creation of a rear extension at ground floor. Removal of rear ground floor toilet block and external fire escape stairs. Demolition of existing, altered mansard roof and construction of a new mansard roof with dormer windows and concealed plant enclosure. Extension of existing lift to serve fourth floor. Replacement of third floor rear windows with double glazed sash windows. Minor internal reconfigurations. Continued use of ground floor as retail (Use Class E(a)) and basement, first, second, third and fourth as office (Use Class E(g))'. NAMELY, to enable the use the lower ground to fourth floor levels for either Class E(a) retail and/or Class E(g) office use.
Awaiting decision Full applications Extension Loft or dormer +2 13 docs -
23 Grafton Street London W1S 4EY
Detailed drawings, including sections (scale 1:20 and 1:5) of new rooflight pursuant to Condition 10 (B) (part) of planning permission dated 17th June 2025 (RN: 25/01604/FULL)
Granted Full applications Loft or dormer 10 docs