Planning application
26/02199/FULL
1 Marlborough Court London W1F 7EE
Proposal
Installation of three wall mounted air conditioning units to rear flank wall of 23 Carnaby and associated external and internal pipework to connect proposed fan coil units in 1 Marlborough Court to replace existing radiators; and other associated works. Linked with 26/02200/LBC
As published by the council, reference 26/02199/FULL
Timeline
Dates from the published record
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1 Apr 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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26/02200/LBC Awaiting decision
1 Marlborough Court London W1F 7EE
Installation of three wall mounted air conditioning units to rear flank wall of 23 Carnaby and associated external and internal pipework to connect proposed fan coil units in 1 Marlborough Court to replace existing radiators; and other associated works. Linked with 26/02199/FULL
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25/06546/LBC Granted
3 Newburgh Street London W1F 7RE
Installation of x1 eyebolts to each of the front elevations of 3, 8, 12A and 16 Newburgh Street to support the display of Festoon lighting.
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26/04337/LBC Awaiting decision
22 Carnaby Street London W1F 7DB
Installation of a Victorian Windsor Lantern affixed to 22 Carnaby Street and associated cabling at 21-24 Carnaby Street, Carnaby, London W1F 7DE
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26/02274/FULL Awaiting decision
21 Carnaby Street London W1F 7DA
Installation of a public art on the southern flank wall and installation of an information plaque at 21 Carnaby Street for a period of 6 months. (Linked with26/02275/LBC )
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26/02275/LBC Awaiting decision
21 Carnaby Street London W1F 7DA
Installation of a public art on the southern flank wall and installation of an information plaque at 21 Carnaby Street for a period of 6 months. (Linked with 26/02274/FULL)
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26/02802/ADV Awaiting decision
Carnaby Street London W1F 9PB
Display of non illuminated hanging sign ('Papel Picado' decorations) measuring 1.8m X 2.4m and internally illuminated other sign (Anamorphic Mural) measuring 1.8m X 2.4m
Other full applications applications
In Westminster
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26/04824/ADFULL 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 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.