Planning application
26/01033/ADFULL
23 Grafton Street London W1S 4EY
Proposal
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)
As published by the council, reference 26/01033/ADFULL
Timeline
Dates from the published record
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18 Feb 2026
Received by Westminster
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1 Apr 2026
Decision issued: Application Permitted
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21 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
About full applications applications
How this application type works
A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.
Nearby applications
Within 500 metres
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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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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)
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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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26/01025/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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26/00555/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.
Other full applications applications
In Westminster
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26/04824/ADFULL Granted
New Zealand House 80 Haymarket London SW1Y 4TE
Detailed design and specification of new blinds to NZH based on mock-up trials on-site. pursuant to condition 32 (i) of planning permission dated 8th April 2024 (23/00571/FULL).
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26/04829/ADFULL Granted
New Zealand House 80 Haymarket London SW1Y 4TE
Details of external and internal signage strategy pursuant to Condition 33(E) of planning permission dated 8th April 2024 (RN: 23/00571/FULL)
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26/04841/ADFULL Granted
29 Henstridge Place London NW8 6QD
Details of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 5 of planning permission dated 18th November 2025 (RN:25/06159).
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26/04989/FULL Awaiting decision
1 Kildare Terrace London W2 5JT
Erection of a mansard roof extending over the main house and side wing, replacement lower ground rear extension with roof terrace above, lowering of lower ground floor slab, installation of an air source heat pump in rear garden, new front boundary treatment, and new second floor window on the north elevation.
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26/04986/FULL Awaiting decision
Inver Court Inverness Terrace London W2 6JB
Replacement of combustible materials in the render facades; timber decking and plastic soffits/ fascias to terraces with non-combustible materials on the 5th and 6th floors.