18 Warwick Avenue London W9 2PT

This site has had 2 applications since 2026.

• 26/05488/FULL Awaiting decision

  18 Warwick Avenue London W9 2PT

  Internal and external alterations, repairs and refurbishment, including extension at lower ground floor level, side extension at ground and first floor level, creation of a basement and other works incidental to the development. (Linked to 26/05489/LBC)

  Submitted 12 Aug 2026 Full applications

1. 12 Aug 2026

   Received by Westminster

2. 18 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 7 October 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.

• 26/05488/FULL Awaiting decision

  18 Warwick Avenue London W9 2PT

  Internal and external alterations, repairs and refurbishment, including extension at lower ground floor level, side extension at ground and first floor level, creation of a basement and other works incidental to the development. (Linked to 26/05489/LBC)

  Submitted 12 Aug 2026 Full applications

1 later application on the register refers to this one:

• 26/05488/FULL Awaiting decision

  18 Warwick Avenue London W9 2PT

  Internal and external alterations, repairs and refurbishment, including extension at lower ground floor level, side extension at ground and first floor level, creation of a basement and other works incidental to the development. (Linked to 26/05489/LBC)

  Submitted 12 Aug 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.

• 24 Warwick Avenue London W9 2PT

  26/01106/ADFULL Submitted 23 Feb 2026 50 yards away

  Details of piled foundations pursuant to condition 5 of planning permission dated 25 January 2024 (RN: 22/05105/FULL)

  Granted Full applications 13 docs

• 26 Warwick Avenue London W9 2PT

  25/06734/ADFULL Submitted 18 Sep 2025 50 yards away

  Details of elevation and section drawings showing the new sash windows at scale 1:5 and 1:10 (as appropriate, and including break lines in the drawings if required) including glazing bar details and including the relationship of the windows to the external wall of the building and also any rebates present in the wall surrounding the window openings pursuant to condition 10 of planning permission dated 24th November 2023 (RN:22/06680/FULL)

  Granted Full applications Windows or glazing 14 docs

• 34 Warwick Avenue London W9 2PT

  23/03082/TCA Submitted 10 May 2023 50 yards away

  1x lime (T2, front): reduce the crown to the previous most recent reduction points, leaving shortened furnishing growth and at least 50 % of fine internal branches.

  Granted Trees 5 docs

• 36 Warwick Avenue London W9 2PT

  23/03083/TPO Submitted 10 May 2023 50 yards away

  1x lime (T1, front): reduce the crown to the previous most recent reduction points, leaving furnishing growth and at least 50 % of fine internal growth.

  Granted Trees 5 docs

• 30 Warwick Avenue London W9 2PT

  26/04371/TPO Submitted 1 Jul 2026 50 yards away

  100% historically approved · decision due ~26 Aug

  5 x London plane (T1 to T5, front): reduce back to most recent reduction points; leaving shortened growth points and a naturally balanced canopy.

  Awaiting decision Trees

• 38 Warwick Avenue London W9 2PT

  26/01593/TPO Submitted 11 Mar 2026 50 yards away

  100% historically approved · decision due ~12 May

  Rear 38 T1 Lime x 1 (Tilia spp)Reduce back to previous reduction points. Just on the side overhanging 40F ~2.5m.

  Awaiting decision Trees 7 docs

• 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