Planning application
26/03058/ADLBC
17 Belgrave Square London SW1X 8PG
Proposal
Detailed drawings showing the roof top acoustic enclosure shall be painted light grey pursuant to condition 12 of planning permission dated 18th August 2025 (RN:25/03417/LBC )
As published by the council, reference 26/03058/ADLBC
Timeline
Dates from the published record
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8 May 2026
Received by Westminster
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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 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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26/03052/ADFULL Awaiting decision
17 Belgrave Square London SW1X 8PG
Detailed drawings showing the roof top acoustic enclosure shall be painted light grey pursuant to condition 6 of planning permission dated 18th August 2025 (RN:25/03416/FULL)
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26/03059/ADLBC Awaiting decision
17 Belgrave Square London SW1X 8PG
detailed drawings at a scale of 1:10 and sections at 1:5 of Windows, Doors, Garage Doors, which should appear as side hung, not up and over; Roof Lantern and any new lighting and flooring in the principal rooms pursuant to discharge of condition 6 of listed building consent dated 21st August 2025 (RN: 25, 03417/LBC).
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26/03053/ADFULL Awaiting decision
17 Belgrave Square London SW1X 8PG
Details of the elevations and sections of the new windows (scaled 1:10) showing integral glazing bars and of the new external doors (scaled 1:10) showing integral glazing bars pursuant to condition 4 of planning permission dated 21st August 2025 (RN: 25/04566/FULL) Linked to 26/03061/ADLBC.
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26/02370/NMA Awaiting decision
17 Belgrave Square London SW1X 8PG
Amendments to planning permission dated 13th December 2019 (RN: 18/01324/FULL) for Demolition of annexe building and replacement with rear extensions to 17 Belgrave Square and excavations to create pool hall extension under garden of 17 Belgrave Square and basement beneath mews property; all in connection with the use of the mews property and 17 Belgrave Square as two single family dwelling houses. Namely to allow proposed reconfiguration and enhancement of the area between the Main House and the Mews, including the erection of a pergola structure, minor alterations to the rear annex openings, and updated rear garden layout.
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26/02371/LBC Awaiting decision
17 Belgrave Square London SW1X 8PG
Internal alterations.
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26/04761/ADFULL Awaiting decision
17 Belgrave Square London SW1X 8PG
Detailed drawings of windows, doors, garage doors, which should appear as side hung, not up and over and roof Lantern pursuant to condition 6 of planning permission dated 13th December 2019 (RN:18/01324).
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)
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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).