Planning application
26/02267/FULL
Flat 36 Collingwood House 103 New Cavendish Street London W1W 6XH
Proposal
Installation of replacement existing metal framed single glazed windows and door plus secondary glazing with new metal framed double glazed windows and door at 8th floor level.
As published by the council, reference 26/02267/FULL
Timeline
Dates from the published record
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6 Apr 2026
Received by Westminster
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28 Apr 2026
Validated
Checked as complete and ready for consideration.
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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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26/02947/FULL Awaiting decision
Flat 2 Collingwood House 103 New Cavendish Street London W1W 6XH
Installation of replacement aluminium double glazed windows to match the existing to flat 2 at sixth floor level.
-
25/09269/NMA Granted
95 New Cavendish Street London W1W 6XF
Amendments to panning permission dated 9th July 2024 (RN 24/00892/FULL) for the Variation of condition 1 of planning permission dated 20 December 2022 (RN: 22/03309/FULL) for the refurbishment and extension of the existing building comprising external amendments including a new facade and a setback single-storey extension to provide additional office accommodation (Use Class E), roof terrace and plant above and associated works; namely, Removal of fire rated windows next to the external escape stair, Re-use of existing SVP pipe as RWP downpipe serving 7th floor roof level and existing pipe between levels 00 - 04 refurbished and reused.
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26/01197/ADFULL Granted
95 New Cavendish Street London W1W 6XF
Details of samples of facing materials pursuant to Condition 3 of planning permission dated 9th July 2024 (RN: 24/00892/FULL)
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25/09345/NMA Awaiting decision
Bentinck House 3 - 8 Bolsover Street London W1W 6AB
Amendments to planning permission dated 13th August 2025 (RN: 25/04551/P3JPA) for Notification for prior approval for the change of use the building from a use falling within Class E (Commercial, Business and Service) to 24 residential apartments (Class C3) pursuant to Schedule 2, Part 3, Class MA of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) namely; minor amendments to the internal layout
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26/00256/FULL Awaiting decision
Bentinck House 3 - 8 Bolsover Street London W1W 6AB
Creation of terraces at lower ground and level 01; introduction of PV panels and plant at roof level; replacement of windows with doors at lower ground level; introduction of doors at level 01; introduction of air bricks and louvres.
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25/07751/ADFULL Awaiting decision
95 New Cavendish Street London W1W 6XF
Details of samples of 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 3 of planning permission dated 9th July 2024 (RN:24/00892/FULL)
Other full applications applications
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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
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26/04841/ADFULL Granted
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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.