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 91 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 119 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

  82% 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

• 26/07528/FULL Awaiting decision

  69 Eaton Place London SW1X 8DF

  Installation of new cast iron water pipe on rear courtyard elevation. (Linked with 26/07529/LBC)

  Received 5 Nov, published by the council 6 Nov 2026 Full applications
• 26/05200/FULL Decided

  1 The Court House 165 Seymour Place London W1H 4PU

  Installation of waterproofing system to the existing lead flat roofs

  Received 3 Aug, published by the council 28 Aug 2026 Full applications
• 26/07521/FULL Awaiting decision

  Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ

  Installation of one external condenser unit

  Received 4 Nov, published by the council 6 Nov 2026 Full applications
• 26/07508/FULL Awaiting decision

  Buckingham Palace The Mall London SW1A 1AA

  Replacement of existing security lighting to the Buckingham Palace Forecourt with 80 compact LED spotlights installed within the lantern clusters across 10 principal piers, with associated concealed cabling and reversible fixings. (Linked with 26/07509/LBC)

  Received 4 Nov, published by the council 5 Nov 2026 Full applications
• 26/07472/FULL Awaiting decision

  Flat 3 82 New Cavendish Street London W1G 9TA

  Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07473/LBC)

  Received 3 Nov, published by the council 6 Nov 2026 Full applications