Theatre Royal 8 Haymarket London SW1Y 4HT

This site has had 2 applications since 2026.

• 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)

  Submitted 12 Feb 2026 Heritage and listed buildings

1. 12 Feb 2026

   Received by Westminster

2. 5 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 30 April 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Westminster took a median of 65 days over the applications it decided in the last year.

• 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)

  Submitted 12 Feb 2026 Heritage and listed buildings

1 later application on the register refers to this one:

• 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)

  Submitted 12 Feb 2026 Heritage and listed buildings

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 91 days. More in our guide to how long planning decisions take.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• Theatre Royal 8 Haymarket London SW1Y 4HT

  26/00874/LBC Submitted 12 Feb 2026 50 yards away

  90% historically approved · decision due ~30 Apr

  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)

  Awaiting decision Heritage and listed buildings 6 docs

• 18 Suffolk Street London SW1Y 4HG

  25/08759/LBC Submitted 2 Dec 2025 50 yards away

  Installation of new fibre telecommunications cabling and fibre termination boxes at basement level.

  Granted Heritage and listed buildings 12 docs

• 11 - 12 Haymarket London SW1Y 4BP

  26/02056/TELNOT Submitted 8 Dec 2025 50 yards away

  Addition of 1 no 300mm dish.

  Decided Telecoms 2 docs

• 1 - 4 Suffolk Street London SW1Y 4HG

  26/00189/ADLBC Submitted 14 Jan 2026 50 yards away

  Detailed drawings of new doors pursuant to condition 3 of listed building consent dated the 6 November 2025 (RN: 25/04083/LBC).

  Granted Conditions 4 docs

• 15 Suffolk Street London SW1Y 4HG

  26/01038/TCA Submitted 18 Feb 2026 50 yards away

  100% historically approved · decision due ~15 Apr

  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.

  Awaiting decision Trees 6 docs

• 11 - 12 Haymarket London SW1Y 4BP

  26/03175/ADV Submitted 14 May 2026 50 yards away

  84% historically approved · decision due ~23 Jul

  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.

  Awaiting decision Advertising Windows or glazing 12 docs

• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06297/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Alterations to rear elevation at basement level comprising repolacement window and installation of double opening door.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06234/FULL Awaiting decision

  40 Grosvenor Place London SW1X 7HJ

  Use of lower ground floor of Unit 3 and ground floor of Unit 2 as gym (Class E(d)) and/ or office (Class E(g))

  Received 11 Sep, published by the council 18 Sep 2026 Full applications
• 26/06249/FULL Awaiting decision

  53 Wimpole Street London W1G 8YH

  Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06250/LBC)

  Received 11 Sep, published by the council 18 Sep 2026 Full applications
• 26/03576/FULL Decided

  15A Devonshire Terrace London W2 3DW

  Erection of an infill extension to basement courtyard to form new bedroom and internal alterations. (Linked with 26/03577/LBC)

  Received 1 Jun, published by the council 11 Sep 2026 Full applications