Planning application
26/03858/FULL
Crown House 143 - 147 Regent Street London W1B 4JB
Proposal
Installation of two air conditioning units located at roof level. Linked with 26/03859/LBC
As published by the council, reference 26/03858/FULL
Timeline
Dates from the published record
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12 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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26/03859/LBC Awaiting decision
Crown House 143 - 147 Regent Street London W1B 4JB
Installation of two air conditioning units located at roof level Linked with 26/03858/FULL
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25/06756/FULL Awaiting decision
10 Heddon Street London W1B 4BY
Removal of existing condenser unit located on roof and installation of three external condenser units.
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26/03797/TCH Awaiting decision
Heddon Street London
Use of the public highway for the placing of tables and chairs outside 11 premises within Heddon Street between the hours of 08:00 - 01:00 and associated works
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25/06440/LBC Refused
133 - 135 Regent Street London W1B 4HX
Installation of temporary graphics to ground and first floor windows during fit-out works. From October 2025 Until April 2026 The proposal is linked to the Planning Approval (Listed Building and Conservation Areas) Consent for works (Conditional): Application No: 24/06997/LBC; Date Received: 07.10.2024 Date Amended: 07.10.2024.
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26/00519/LBC Awaiting decision
133 - 135 Regent Street London W1B 4HX
Retrospective application for replacement of ventilation grille at ground floor level; facade cleaning; installation of automated window and door opening mechanisms; terrazzo repair and cleaning; installation of fire lining; internal replastering; reinstatement of window architraves and associated works. [Linked to 26/00518/FULL]
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25/06448/ADV Refused
133 - 135 Regent Street London W1B 4HX
Display of non illuminated vinyl graphics measuring 3.7m X 3.6m at ground and first floor from from 12th October 2025 until 30th April 2026.
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.