9 Cavendish Square London W1G 9DF

This site has had 28 applications since 2003: 24 approved, 2 refused.

• 26/06413/FULL Awaiting decision

  9 Cavendish Square London W1G 9DF

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

  Submitted 18 Sep 2026 Full applications
• 26/03309/FULL Awaiting decision

  9 Cavendish Square London W1G 9DF

  Installation of CCTV cameras at Ground Floor; and louvres in place of existing windows at Lower Ground Floor (above existing doorset).

  Submitted 19 May 2026 Full applications
• 25/05090/FULL Granted

  9 Cavendish Square London W1G 9DF

  Installation of a non-mechanical louvre at lower ground floor level on the Chandos Street elevation.

  Decided 19 Sep 2025 Full applications
• 24/00959/ADFULL Granted

  9 Cavendish Square London W1G 9DF

  Detailed drawings and a bio-diversity management plan in relation to the green wall to include construction method, layout, species and maintenance regime pursuant to Condition 7 of planning permission dated 8th November 2022 (RN:22/06159/FULL)

  Decided 22 Mar 2024 Full applications
• 08/02350/FULL Granted

  9 Cavendish Square London W1G 9DF

  Installation of additional security (CCTV, door access systems) at ground and basement level on the Chandos Street and Cavendish Square elevations. Installation of two satellite dishes and one aerial at roof level and two air conditioning units within an existing rooftop enclosure.

  Decided 16 Jul 2008 Full applications
• 08/00623/ADFULL Granted

  9 Cavendish Square London W1G 9DF

  Details of mortar finish and lightwell finishes pursuant to Conditions 10 and 12(i) of planning permission dated 16 September 2004 (RN: 04/02391).

  Decided 5 Feb 2008 Full applications
• 07/05669/FULL Granted

  9 Cavendish Square London W1G 9DF

  Installation of eight floodlights at ground floor level to floodlight the Cavendish Square and Chandos Street elevations.

  Decided 5 Sep 2007 Full applications
• 07/03941/ADFULL Granted

  9 Cavendish Square London W1G 9DF

  Details of external metalwork including railings pursuant to Condition 11 (iii) of planning permission dated 16 September 2004 (RN: 04/02391).

  Decided 31 Jul 2007 Full applications
• 07/01852/ADFULL Granted

  9 Cavendish Square London W1G 9DF

  Details of an alternative safety arrangement to the parapet at fourth floor level pursuant to Condition 22 of planning permission dated 16 September 2004 (RN: 04/02391).

  Decided 17 Jul 2007 Full applications
• 07/00645/ADFULL Granted

  9 Cavendish Square London W1G 9DF

  Details of windows, external doors and dormer windows pursuant to Conditions 11(i), 11(ii) and 11(iii) of planning permission dated 16 September 2004 (RN: 04/02391).

  Decided 15 Mar 2007 Full applications

1. 17 Oct 2005

   Received by Westminster

2. 7 Nov 2005

   Decision issued: Application Permitted

3. 30 Aug 2026

   Added to PlanIndex

Westminster granted permission on 7 November 2005, 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.

This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.

• 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

• 9 Cavendish Square London W1G 9DF

  06/02932/ADFULL Submitted 18 Apr 2006 50 yards away

  Details of stonework and other mouldings pursuant to Condition 11(iv) of planning permission dated 16 September 2004 (RN 04/02391).

  Granted Full applications 8 docs

• 9 Cavendish Square London W1G 9DF

  07/05669/FULL Submitted 28 Jun 2007 50 yards away

  Installation of eight floodlights at ground floor level to floodlight the Cavendish Square and Chandos Street elevations.

  Granted Full applications 10 docs

• 9 Cavendish Square London W1G 9DF

  07/03941/ADFULL Submitted 3 May 2007 50 yards away

  Details of external metalwork including railings pursuant to Condition 11 (iii) of planning permission dated 16 September 2004 (RN: 04/02391).

  Granted Full applications 4 docs

• 9 Cavendish Square London W1G 9DF

  07/01852/ADFULL Submitted 27 Feb 2007 50 yards away

  Details of an alternative safety arrangement to the parapet at fourth floor level pursuant to Condition 22 of planning permission dated 16 September 2004 (RN: 04/02391).

  Granted Full applications 7 docs

• 26/04860/ADLBC Granted

  New Zealand House 80 Haymarket London SW1Y 4TE

  Details of external and internal signage strategy pursuant to Condition 7(E) of listed building consent dated 12th February 2021 (RN: 19/07816/LBC)

  Received 20 Jul, published by the council 1 Aug 2026 Conditions
• 26/04843/ADLBC Granted

  New Zealand House 80 Haymarket London SW1Y 4TE

  Detailed design and specification of new blinds to NZH based on mock-up trials on-site pursuant to Condition 6(m) of listed building consent dated 12th February 2021 (19/07816/LBC).

  Received 20 Jul, published by the council 1 Aug 2026 Conditions
• 26/04850/ADLBC Awaiting decision

  17 Belgrave Square London SW1X 8PG

  Detailed drawings of garage doors, roof lantern and any new lighting and flooring in the principal rooms pursuant to condition 6 (iii) (iv) (v) of listed building 18th August 2025 (RN:25/03417/LBC)

  Received 20 Jul, published by the council 1 Aug 2026 Conditions
• 25/07120/ADLBC Granted

  72 - 74 Lancaster Gate London W2 3NH

  Details of new and altered doors and door architraves, including external faces of lifts (detailed elevations and sections at 1:10) pursuant to Condition 3 (A) of Listed Building Consent dated 14 December 2023 (RN: 23/00772/LBC) (Linked app: 25/07088/ADFULL)

  Received 2 Oct, published by the council 21 Jul 2026 Conditions
• 26/04781/ADLBC Awaiting decision

  33A Dean Street London W1D 4PP

  Detailed drawings (1:5 and 1:20) of the Floor build up at all levels, fireplaces, doors, details of the materials (specification sheet) placed onto the flagstones at basement level, detailed methodology is required to show how any historic floorboards would be carefully lifted up and reinstated and a detailed methodology is required to show how the historic panelling will be removed, stores and reinstated pursuant to condition 3, 4, 5, 6 of listed building dated 1st August 2025 (RN:25/01948/LBC)

  Received 16 Jul, published by the council 25 Jul 2026 Conditions