Planning application
26/03765/FULL
10 - 12 Carlisle Street London W1D 3BR
Proposal
Installation of replacement air conditioning unit at roof level; and other associated works.
As published by the council, reference 26/03765/FULL
Timeline
Dates from the published record
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9 Jun 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 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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26/02117/FULL Awaiting decision
10 - 12 Carlisle Street London W1D 3BR
Reconfiguration of the main entrance doors to Carlisle Street and the like-for-like replacement of the existing external doors and windows.
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11/02675/XRHER Granted
6 Carlisle Street London W1D 3BN
Approval of details pursuant to Condition 2 of Heritage Deed Approval dated 25 February 2011 (RN:11/00379/XRHER), namely, the submission of detailed drawings of the location(s) of all external monitoring equipment.
-
12/06875/XRHER Granted
6 Carlisle Street London W1D 3BN
Heritage Deed Method Statement for structural repairs.
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25/06206/LBC Granted
6 Carlisle Street London W1D 3BN
Like for like replacement of rear roof including lead flashing and other repair works.
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12/05332/ADFULL Refused
26 St Anne's Court London W1F 0BL
Approval of details pursuant to Condition 5 (part) and Condition 6(1) (part) of planning permission dated 17 June 2010 (RN:10/03253); namely the submission of a sample for the roofing material and detailed drawings of all new windows.
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11/09221/NMA Granted
26 St Anne's Court London W1F 0BL
Amendments to planning permission dated 17 June 2020 (RN:10/03253) for external alterations in association with the use of the building as a single family dwellinghouse, including a roof extension, infilling at ground, first and second floor levels, alterations to roof at third floor level to facilitate the creation of a rear terrace, creation of a rear first floor terrace and Juliette balcony at rear second floor level, rear basement excavation and extension and alterations to windows at front and rear, namely relocation of access door to roof terrace on the first floor.
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In Westminster
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26/04824/ADFULL Granted
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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.