Planning application
26/00654/ADLBC
15 Upper Wimpole Street London W1G 6LS
Proposal
Details of works to roofs, including leadwork, slating and retention of slate coping to rear vaulted roof; design of new entrance door and mews doors (to be traditional with collinge hinges); paving specs/sample (lightwells/infills); design and materials of new fanlight; works to front lightwell entrance steps, rationalised pipe work, detailed design and materials of glazed lift; relationship of glazed lift to decorative features at each level, confirmation that floorboards will be retained throughout and any new flooring pursuant to Conditions 3 External (2,4,7,8,9 and 10) and Internal (8,9,10 and 11) of listed building consent dated 03 June 2025 (RN25/00869/LBC)
As published by the council, reference 26/00654/ADLBC
Timeline
Dates from the published record
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4 Feb 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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26/00713/ADFULL Granted
15 Upper Wimpole Street London W1G 6LS
Details of privacy screen and detailed drawings/schedules/samples of works to fit glazing bars to retained windows; horizontal and vertical sections through new window and door joinery; coping specification and material to rear brickwork screen and glazing system to infill roof pursuant to condition 6 and 9 (part 1, 3, 5, 6) of planning permission dated 3 June 2025 (RN: 25/00868/FULL)
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26/00712/ADFULL Granted
15 Upper Wimpole Street London W1G 6LS
Detailed drawings/schedules/samples at appropriate scale of works to roofs, including leadwork, slating and retention of slate coping to rear vaulted roof; design of new entrance door and mews doors (to be traditional with collinge hinges); paving specs/sample (lightwells/infills); design and materials of new fanlight, Works to front lightwell and entrance steps and rationalised pipe work pursuant to condition 9 (part 2, 4, 7, 8, 9, 10) of planning permission dated 3 June 2025 (RN: 25/00868/FULL)
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26/00705/ADLBC Granted
15 Upper Wimpole Street London W1G 6LS
Details of works to fit glazing bars to retained windows, horizontal and vertical sections through new window and door joinery, coping specification and material to rear brickwork screen and glazing system to infill roof pursuant to Condition 3 (Parts 1, 3, 5 and 6) of Listed Building Consent dated 3 June 2025 (RN: 25/00869/LBC)
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26/01201/ADLBC Granted
15 Upper Wimpole Street London W1G 6LS
Detailed drawings of the extent of chasing for riser pursuant to part internal part 12 of condition 3 of listed building consent dated 3rd June 2025 (RN 25/00869/LBC)
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25/08724/ADFULL Granted
14 Upper Wimpole Street London W1G 6LR
Details of new windows pursuant to condition 3 of planning permission dated 16th April 2024 (RN: 24/00065/FULL). (Linked with 26/08777/ADLBC). (Linked with 25/08724/ADFULL)
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26/08777/ADLBC Granted
14 Upper Wimpole Street London W1G 6LR
Details of new windows, secondary stairs and balustrades, cornices, skirting boards, doors and architraves, and floor build ups pursuant to condition 3 of listed building dated 16th April 2024 (RN: 24/00066/LBC).
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).