11 - 13 Cavendish Square London W1G 0AN

This site has had 4 applications since 2026.

• 26/04387/FULL Decided

  11 - 13 Cavendish Square London W1G 0AN

  Replacement roof lantern and roof tiles. (Linked with 26/04388/LBC)

  Submitted 2 Jul 2026 Full applications
• 26/04388/LBC Decided

  11 - 13 Cavendish Square London W1G 0AN

  Replacement roof lantern and roof tiles. (Linked with 26/04387/FULL)

  Submitted 2 Jul 2026 Heritage and listed buildings
• 26/04318/FULL Awaiting decision

  11 - 13 Cavendish Square London W1G 0AN

  Replacement flue to accompany new boiler. (Linked with 26/04319/LBC)

  Submitted 30 Jun 2026 Full applications

1. 30 Jun 2026

   Received by Westminster

2. 2 Jul 2026

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 27 August 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.

• 26/04318/FULL Awaiting decision

  11 - 13 Cavendish Square London W1G 0AN

  Replacement flue to accompany new boiler. (Linked with 26/04319/LBC)

  Submitted 30 Jun 2026 Full applications

1 later application on the register refers to this one:

• 26/04318/FULL Awaiting decision

  11 - 13 Cavendish Square London W1G 0AN

  Replacement flue to accompany new boiler. (Linked with 26/04319/LBC)

  Submitted 30 Jun 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.

• 11 - 13 Cavendish Square London W1G 0AN

  26/04387/FULL Submitted 2 Jul 2026 50 yards away

  88% historically approved · decision due ~3 Sep

  Replacement roof lantern and roof tiles. (Linked with 26/04388/LBC)

  Decided Full applications Roofing Windows or glazing 9 docs

• 11 - 13 Cavendish Square London W1G 0AN

  26/04388/LBC Submitted 2 Jul 2026 50 yards away

  90% historically approved · decision due ~3 Sep

  Replacement roof lantern and roof tiles. (Linked with 26/04387/FULL)

  Decided Heritage and listed buildings Roofing Windows or glazing 9 docs

• 11 - 13 Cavendish Square London W1G 0AN

  26/04318/FULL Submitted 30 Jun 2026 50 yards away

  88% historically approved · decision due ~27 Aug

  Replacement flue to accompany new boiler. (Linked with 26/04319/LBC)

  Awaiting decision Full applications

• 9 Cavendish Square London W1G 9DF

  26/06413/FULL Submitted 18 Sep 2026 50 yards away

  88% historically approved · decision due ~13 Nov

  Installation of louvre grille in place of existing above-door glass panels on the lower ground floor.

  Awaiting decision Full applications

• 9 Cavendish Square London W1G 9DF

  06/04103/ADFULL Submitted 26 May 2006 50 yards away

  Detailed drawings of windows and dormer windows pursuant to Conditions 11(i) and (v) of planning permission dated 16 September 2004 (RN 04/02391).

  Refused Full applications Loft or dormer Windows or glazing 7 docs

• 9 Cavendish Square London W1G 9DF

  06/03701/ADFULL Submitted 12 May 2006 50 yards away

  Details of facing materials pursuant to Condition 9 of planning permission dated 16 September 2004 (RN 04/02391).

  Granted Full applications 3 docs

• 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
• 26/07461/LBC Awaiting decision

  1 Savile Row London W1S 3JR

  Minor internal works comprising redecoration and upgrades to lighting, flooring and bathroom and kitchen facilities, together with external works including new lighting and signage.

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