Planning application
25/08787/ADFULL
35 - 37 Grosvenor Square London W1K 2HN
Proposal
Details of Supplementary Acoustic Report pursuant to condition 7 of planning permission dated 30 September 2024 (RN: 24/05532/FULL)
As published by the council, reference 25/08787/ADFULL
Timeline
Dates from the published record
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3 Dec 2025
Received by Westminster
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10 Mar 2026
Decision issued: Application Permitted
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20 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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26/02576/FULL Awaiting decision
38 Grosvenor Square London W1K 2HW
Temporary pop-up exhibition (Use Class F1) for a period of 18 months.
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26/04399/FULL Awaiting decision
38 Grosvenor Square London W1K 2HW
Refurbishment and redevelopment of the site to provide a hotel (Use Class C1) with associated ancillary facilities, including the demolition of the existing rear wing and the erection of a new rear wing extension with roof pavilion and terrace, construction of a basement, and associated servicing, cycle parking, and landscaping works. (Linked with 26/04400/LBC)
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26/04400/LBC Awaiting decision
38 Grosvenor Square London W1K 2HW
Refurbishment and redevelopment of the site to provide a hotel (Use Class C1) with associated ancillary facilities, including the demolition of the existing rear wing and the erection of a new rear wing extension with roof pavilion and terrace, construction of a basement, and associated servicing, cycle parking, and landscaping works. (Linked with 26/04399/FULL)
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26/03449/ADFULL Awaiting decision
34 Grosvenor Square London W1K 2HD
Details of new french doors pursuant to condition 4 of planning permission dated 17 March 2026 (RN: 25/08464/FULL)
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25/06638/TELCOM Granted
Communications Station 39 - 44 Grosvenor Square London W1K 2HP
Removal of the existing 3no. antennas and installation of replacement 3no. antennas two of which located on new freestanding frames and ancillary development thereto including 1.1m freestanding handrail.
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26/02805/LBC Awaiting decision
Flat D 42 South Audley Street London W1K 2PT
Replacement of the existing modern wood floor finish in the main living room and part of the hallway.
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26/04824/ADFULL Granted
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26/04829/ADFULL Granted
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26/04841/ADFULL Granted
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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
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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
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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.