Planning application
25/06662/FULL
24A Hay's Mews London W1J 5PY
Proposal
Internal demolition and refurbishment works; the creation of new entrance to the courtyard; and other associated works. (Linked to 25/06663/LBC)
As published by the council, reference 25/06662/FULL
Timeline
Dates from the published record
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17 Sep 2025
Received by Westminster
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7 Oct 2025
Validated
Checked as complete and ready for consideration.
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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 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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25/06663/LBC Awaiting decision
24A Hay's Mews London W1J 5PY
Internal demolition and refurbishment works; the creation of new entrance to the courtyard; and other associated works. (Linked to 25/06662/FULL)
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25/06733/NMA Granted
21 Charles Street London W1J 5DT
Amendments to planning permission dated 22nd September 2011 (RN:11/07285/FULL) for Extension of time for the commencement of development granted planning permission on 24 December 2008 (extant permission: RN: 08/06804); namely, external alterations to existing dwelling at 21 Charles St and 21 Hays Mews including demolition and redevelopment of the mews building (retaining the front facade) to create sub basement, lower basement, ground to second floors including a mansard roof in connection with the use of the building for residential purposes (Class C3). Creation of link at ground floor level and terrace at first floor level within courtyard area. Installation of plant at roof level of No. 21 Charles Street. Namely; to relocate the listed approved drawings and documents so they are a condition on the planning permission.
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26/04201/AD7 Awaiting decision
9 Chesterfield Street London W1J 5JJ
Display for a temporary period of six months of a non-illuminated estate agent board attached to the railings in front of the building at 1m from the ground and measuring 0.9 x 0.6m.
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25/09330/LBC Granted
11 Chesterfield Street London W1J 5JN
Rear extension at ground and lower ground floor, rear outrigger extension from ground to second floor, roof alterations and internal alterations and new plant. [Linked to 25/09329/FULL]
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25/09329/FULL Granted
11 Chesterfield Street London W1J 5JN
Rear extension at ground and lower ground floor, rear outrigger extension from ground to second floor, roof alterations and internal alterations and new plant. [Linked to 25/09330/LBC]
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26/02086/FULL Awaiting decision
Shaw House 6 Chesterfield Street London W1J 5JQ
Removal and replacement of roof form; erection of rear basement infill; extensive retrofit to upgrade to an all-electric building; alterations and refurbishment to the front and rear facades including replacement windows, replacement lift; internal reconfiguration and comprehensive refurbishment throughout the building, new cycle parking facilities; green roofs and associated works.
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.