1 Cavendish Square London W1G 0LA

This site has had 6 applications since 2025: 6 approved, 0 refused.

• 26/00756/ADV Granted

  1 Cavendish Square London W1G 0LA

  Display of 1x non-illuminated surface mounted low level sign adjacent to the entrance door measuring 1.2m x 0.9m 1x halo illuminated fascia sign measuring 2.2m x 0.65m and two internally illuminated hanging signs measuring 1m x 0.8m

  Decided 29 Apr 2026 Advertising
• 25/06203/FULL Granted

  1 Cavendish Square London W1G 0LA

  Variation of Condition 13 of planning permission dated 20th April 2023 (RN: 22/07690/FULL) for the Opening up to basement areas, lowering of floor in pavement vaults and corridors to increase the useable space, additional opening up to eastern ground floor area, forming of services voids to accommodate plant and equipment, reopening of existing skylight apertures to existing pitched roof for ventilation of services, alterations to eastern facade to accommodate a new plant deck, WC accommodation and small terrace, in -connection with the use of building as a restaurant/drinking establishment (Sui Generis) namely, to extend hours of opening. Application under S73 of the Act

  Decided 27 Oct 2025 Full applications
• 25/05570/ADLBC Granted

  1 Cavendish Square London W1G 0LA

  Details of new windows and roof lights pursuant to Condition 5(B) PART of Listed Building Consent dated 03 September 2024 (RN23/08101/LBC)

  Decided 4 Nov 2025 Conditions
• 25/04627/LBC Granted

  1 Cavendish Square London W1G 0LA

  Installation of surface mounted uplighters and associated alterations on the Margaret Street elevation of the building. (Linked with 25/04627/LBC and 25/04625/ADV).

  Decided 16 Sep 2025 Heritage and listed buildings
• 25/04626/FULL Granted

  1 Cavendish Square London W1G 0LA

  Installation of surface mounted uplighters and associated alterations on the Margaret Street elevation of the building. (Linked with 25/04627/LBC and 25/04625/ADV).

  Decided 16 Sep 2025 Full applications

1. 28 Oct 2025

   Received by Westminster

2. 19 Feb 2026

   Decision issued: Application Permitted

3. 21 Jul 2026

   Added to PlanIndex

Westminster granted permission on 19 February 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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.

• 1 Cavendish Square London W1G 0LA

  26/00756/ADV Submitted 9 Feb 2026 50 yards away

  Display of 1x non-illuminated surface mounted low level sign adjacent to the entrance door measuring 1.2m x 0.9m 1x halo illuminated fascia sign measuring 2.2m x 0.65m and two internally illuminated hanging signs measuring 1m x 0.8m

  Granted Advertising 12 docs

• 1 Cavendish Square London W1G 0LA

  25/06203/FULL Submitted 1 Sep 2025 50 yards away

  Variation of Condition 13 of planning permission dated 20th April 2023 (RN: 22/07690/FULL) for the Opening up to basement areas, lowering of floor in pavement vaults and corridors to increase the useable space, additional opening up to eastern ground floor area, forming of services voids to accommodate plant and equipment, reopening of existing skylight apertures to existing pitched roof for ventilation of services, alterations to eastern facade to accommodate a new plant deck, WC accommodation and small terrace, in -connection with the use of building as a restaurant/drinking establishment (Sui Generis) namely, to extend hours of opening. Application under S73 of the Act

  Granted Full applications 19 docs

• 1 Cavendish Square London W1G 0LA

  25/04627/LBC Submitted 4 Jul 2025 50 yards away

  Installation of surface mounted uplighters and associated alterations on the Margaret Street elevation of the building. (Linked with 25/04627/LBC and 25/04625/ADV).

  Granted Heritage and listed buildings 16 docs

• 1 Cavendish Square London W1G 0LA

  25/04626/FULL Submitted 4 Jul 2025 50 yards away

  Installation of surface mounted uplighters and associated alterations on the Margaret Street elevation of the building. (Linked with 25/04627/LBC and 25/04625/ADV).

  Granted Full applications 20 docs

• 2 Cavendish Square London W1G 0PA

  25/08049/FULL Submitted 5 Nov 2025 50 yards away

  Removal of existing plant equipment. Installation of new air source heat pump, two new air conditioning units and relocation of four existing air conditioning units within existing plant enclosure at roof level. Associated alterations to lift atrium roof.

  Granted Full applications 21 docs

• 1 Cavendish Square London W1G 0LA

  25/05570/ADLBC Submitted 8 Aug 2025 50 yards away

  Details of new windows and roof lights pursuant to Condition 5(B) PART of Listed Building Consent dated 03 September 2024 (RN23/08101/LBC)

  Granted Conditions Loft or dormer Windows or glazing 7 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