54 Chester Square And 54 Ebury Mews London

This site has had 2 applications since 2026.

• 26/06072/FULL Awaiting decision

  54 Chester Square And 54 Ebury Mews London

  Removal of two existing air-conditioning units from front lightwell and roof level, installation of a new air-conditioning unit at roof level within an acoustic enclosure, installation of a new air-conditioning unit at fifth floor terrace within an acoustic enclosure, and removal and replacement of external CCTV cameras. Internal alterations.

  Submitted 7 Sep 2026 Full applications

1. 7 Sep 2026

   Received by Westminster

2. 15 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 2 November 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.

1 later application on the register refers to this one:

• 26/06072/FULL Awaiting decision

  54 Chester Square And 54 Ebury Mews London

  Removal of two existing air-conditioning units from front lightwell and roof level, installation of a new air-conditioning unit at roof level within an acoustic enclosure, installation of a new air-conditioning unit at fifth floor terrace within an acoustic enclosure, and removal and replacement of external CCTV cameras. Internal alterations.

  Submitted 7 Sep 2026 Full applications

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided heritage and listed building applications in a median of 119 days. More in our guide to how long planning decisions take.

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

• 26/06288/LBC Decided

  Barness Court 6 - 8 Westbourne Terrace London W2 3UW

  Installation of a gas pipework to south elevation and wall. (Linked with 26/06287/FULL)

  Received 14 Sep, published by the council 21 Sep 2026 Heritage and listed buildings
• 26/07529/LBC Awaiting decision

  69 Eaton Place London SW1X 8DF

  Installation of new cast iron water supply pipe on rear courtyard elevation. (Linked with 26/07528/FULL)

  Received 5 Nov, published by the council 6 Nov 2026 Heritage and listed buildings
• 26/07509/LBC 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 26/07508/FULL)

  Received 4 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
• 26/07473/LBC Awaiting decision

  Flat 3 82 New Cavendish Street London W1G 9TA

  Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07472/FULL)

  Received 3 Nov, published by the council 6 Nov 2026 Heritage and listed buildings
• 26/07471/LBC Awaiting decision

  12 Queen Anne's Gate London SW1H 9AA

  Excavation of single-storey basement, internal reconfiguration and installation of modern services. (Linked with 26/07470/FULL)

  Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings