Planning application
26/00875/FULL
Theatre Royal 8 Haymarket London SW1Y 4HT
Proposal
Replacement of existing chiller unit with air source heat pump and associated acoustic screens in rear lightwell. (linked with 26/00874/LBC)
As published by the council, reference 26/00875/FULL
Timeline
Dates from the published record
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12 Feb 2026
Received by Westminster
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5 Mar 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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26/00874/LBC Awaiting decision
Theatre Royal 8 Haymarket London SW1Y 4HT
Replacement of existing chiller unit with air source heat pump, associated acoustic screens and internal plant equipment, removal of internal partitions (linked with 26/00875/FULL)
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25/08759/LBC Granted
18 Suffolk Street London SW1Y 4HG
Installation of new fibre telecommunications cabling and fibre termination boxes at basement level.
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26/02056/TELNOT Decided
11 - 12 Haymarket London SW1Y 4BP
Addition of 1 no 300mm dish.
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26/00189/ADLBC Granted
1 - 4 Suffolk Street London SW1Y 4HG
Detailed drawings of new doors pursuant to condition 3 of listed building consent dated the 6 November 2025 (RN: 25/04083/LBC).
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26/01038/TCA Awaiting decision
15 Suffolk Street London SW1Y 4HG
T1 ? x1 Holm Oak tree in the grounds of 15 Suffolk Street and within a conservation area. Reduce the crown height by 2.5 metres and crown width by 1.5 metres. Reduce the crown density by removing dead, crossing and damaged branches. Raise the crown to achieve a clearance of 2.5 metres above ground level.
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26/03175/ADV Awaiting decision
11 - 12 Haymarket London SW1Y 4BP
Display of four internally illuminated fascia signs measuring 0.4m x 8.97m, 0.4m x 9.7m, 0.4m x 2.57m and 0.95m x 2.56m; two internally illuminated LED screens measuring 1.44m x 0.81m; three non-illuminated awnings measuring 2.2m x 4.5m, 2.2m x 5.6m and 2.2m x 3m; and four sets of vinyl on glazing measuring 1.1m x 4.5m, 1.1m x 2.9m, 1.1m x 5.6m and 1.97m x 1.36m.
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.