Planning application
25/05570/ADLBC
1 Cavendish Square London W1G 0LA
Proposal
Details of new windows and roof lights pursuant to Condition 5(B) PART of Listed Building Consent dated 03 September 2024 (RN23/08101/LBC)
As published by the council, reference 25/05570/ADLBC
Timeline
Dates from the published record
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8 Aug 2025
Received by Westminster
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4 Nov 2025
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 conditions applications
How this application type works
This type of application deals with conditions attached to an existing permission, either by supplying the details a condition requires, called discharging it, or by asking to vary or remove one. It does not reopen the principle of the permission itself. Building often cannot lawfully start, or continue past a set stage, until the named conditions are discharged.
Nearby applications
Within 500 metres
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26/04900/LBC Awaiting decision
Flanders House 1A Cavendish Square London W1G 0PH
Maintenance and repair works to the external elevations of the building.
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26/00992/AD7 Granted
2 Cavendish Square London W1G 0PA
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 street level and measuring 0.6 x 0.45m.
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25/08049/FULL Awaiting decision
2 Cavendish Square London W1G 0PA
Removal of existing plant equipment, Installation of new air source heat pump, two new air conditioning units and relocation of four existing air conditioning units within existing plant enclosure at roof level. Associated alterations to lift atrium roof.
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25/07814/LBC Awaiting decision
1 Cavendish Square London W1G 0LA
Installation of fibre optic cables along the lightwell street wall in existing tray work into basement comms room.
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26/00756/ADV Granted
1 Cavendish Square London W1G 0LA
Display of 1x non-illuminated surface mounted low level sign adjacent to the entrance door measuring 1.2m x 0.9m 1x halo illuminated fascia sign measuring 2.2m x 0.65m and two internally illuminated hanging signs measuring 1m x 0.8m
-
25/06203/FULL Granted
1 Cavendish Square London W1G 0LA
Variation of Condition 13 of planning permission dated 20th April 2023 (RN: 22/07690/FULL) for the Opening up to basement areas, lowering of floor in pavement vaults and corridors to increase the useable space, additional opening up to eastern ground floor area, forming of services voids to accommodate plant and equipment, reopening of existing skylight apertures to existing pitched roof for ventilation of services, alterations to eastern facade to accommodate a new plant deck, WC accommodation and small terrace, in -connection with the use of building as a restaurant/drinking establishment (Sui Generis) namely, to extend hours of opening. Application under S73 of the Act
Other conditions applications
In Westminster
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26/04967/ADLBC Withdrawn
Royal Institute Of British Architects 66 Portland Place London W1B 1AD
Details of installation of services and related fixtures pursuant to condition 8 (partial) of listed building consent dated 10 June 2025 (RN: 25/01205/LBC)
-
26/04860/ADLBC Granted
New Zealand House 80 Haymarket London SW1Y 4TE
Details of external and internal signage strategy pursuant to Condition 7(E) of listed building consent dated 12th February 2021 (RN: 19/07816/LBC)
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26/04843/ADLBC 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 6(m) of listed building consent dated 12th February 2021 (19/07816/LBC).
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26/04998/ADLBC Awaiting decision
17 - 21 South Audley Street London W1K 2NY
Detailed drawings of Bathroom and Kitchen details for apartments 01, 02, 08, 09, 10 and 11 and Reflected ceiling plans for Apartment 1 powder room and bathroom, Apartment 2 powder room and bathrooms, Apartment 8 power room and bathroom, Apartment 9 bathrooms, Apartment 10 bathroom and shower room, and Apartment 11 bathrooms pursuant to partial discharge of conditions 6.3 and 6.10 of listed building consent dated 14th March 2023 (RN: 22/05005/LBC).
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26/04992/ADLBC Awaiting decision
17 - 21 South Audley Street London W1K 2NY
Detailed drawings of wall construction to new apartments pursuant to partial discharge of condition 6.2 of listed building consent dated 14th March 2023 (RN: 22/05005/LBC).