Upper Maisonette 22 Clarendon Gardens London W9 1AZ

1. 30 Jun 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 25 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 65 days over the applications it decided in the last year.

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 93 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.

• 18 Clarendon Gardens London W9 1AZ

  25/08638/LBC Submitted 26 Nov 2025 24m away

  Demolition of a rear garden boundary wall and its like-for-like rebuilding on the same footprint, height and alignment, using matching materials and painted finish

  Granted Heritage and listed buildings Demolition 19 docs
  Small domestic

• 18 Clarendon Gardens London W9 1AZ

  25/05485/LBC Submitted 5 Aug 2025 24m away

  Internal alterations at lower ground floor level of maisonette apartment, including removal of non-original stud partition forming a lobby, replacement of non-original double door with new single door, and installation of a new bathroom.

  Granted Heritage and listed buildings 14 docs

• 26C Clarendon Gardens London W9 1AZ

  25/06617/ADLBC Submitted 10 Sep 2025 27m away

  Detailed drawings showing the revision to the window scheme including details on retaining and refurbishing sash boxes to all windows, omitting reglazing of two rear original windows and joinery profiles to reflect the original lamb's tongue bars, pursuant to Condition 3 of Listed Building Consent dated 16 April 2025 (RN: 24/03615/LBC).

  Refused Conditions Windows or glazing 9 docs

• 24 Clarendon Gardens London W9 1AZ

  25/05872/ADFULL Submitted 19 Aug 2025 27m away

  87% historically approved · decision due ~14 Oct

  Detailed drawings including sections, and method statements where applicable; of the railings, balconies, gate showing traditional detail of hinges- each type showing location and giving key details with adjacent fabric, details of new rear infill extension including new external doors, and roof glazing showing details of materiality and key junctions with existing fabric, external staircase, ladders reflected ceiling plans showing light fittings etc and coordinated integrated services, indicating new or retained existing ceiling constructions, a method statement further to investigative works for removal of modern ceilings and reinstatement of historic ceilings if applicable, must be included, details of existing and proposed floor build ups further to investigative works, cross referred on plans, details of sample photos showing materiality and technical specifications of any new glazing for the windows and details of sample photographs and specifications of the paving material at rear garden, infill rear extension including glazing, frames, staircase, landing pursuant to condition 4 (A), (B), (C), (G), (I), 5 & 7 of planning permission dated 12th June 2025 (RN:25/00027/FULL)

  Awaiting decision Full applications Extension Windows or glazing 24 docs

• 24 Clarendon Gardens London W9 1AZ

  25/05867/ADLBC Submitted 19 Aug 2025 27m away

  91% historically approved · decision due ~14 Oct

  Details of railings, balconies, gate showing traditional detail of hinges, details of new rear infill extension including external doors, and roof glazing showing details of materiality and key junctions, external staircase, ladders, reflected ceiling plans showing light fittings , details of existing and proposed floor build ups, glazing samples, photographs and specifications of the paving material and detailed condition surveys pursuant to Conditions 5 (A,B,C,G and I), 6, 9 and 10 of Listed Building Consent dated 12 June 2025 (RN25/00028/LBC)

  Awaiting decision Conditions Extension Windows or glazing 24 docs

• 34 Clarendon Gardens London W9 1AZ

  26/05103/TCA Submitted 29 Jul 2026 27m away

  100% historically approved · decision due ~23 Sep

  1 x Sycamore (T1, rear): Reduce the tree's crown by up to 4 metres, trimming back to the most recent and previous reduction points. 1 x Golden False Acacia (T2, rear): Trim the crown lightly by up to 1.5 metres and shape it sensitively.

  Decided Trees

• 26/06250/LBC Awaiting decision

  53 Wimpole Street London W1G 8YH

  Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06249/FULL)

  11 Sep 2026 Heritage and listed buildings
• 26/06203/LBC Awaiting decision

  106 Blandford Street London W1U 8AG

  Installation of two roof-mounted anchor posts. (Linked to 26/06202/FULL)

  10 Sep 2026 Heritage and listed buildings
• 26/06187/LBC Awaiting decision

  4 Shepherd Market London W1J 7QB

  Installation of wall mounted highway street light on to the facade of 4 Shepherd Market.

  10 Sep 2026 Heritage and listed buildings
• 26/06216/LBC Awaiting decision

  208 Regent Street London W1B 5BD

  Strip-out of existing, modern retail unit fixtures, fittings, stair and services, with retention of heritage and listed features, including shopfront and entrances, and ground floor ceiling details and features. Fit-out of new retail fittings, fixtures and services. Retention of shopfront with new 'like-for-like' signage and a new flag pole.

  10 Sep 2026 Heritage and listed buildings
• 26/06176/LBC Awaiting decision

  46 Gloucester Place London W1U 8HG

  Installation of 1,100 mm high protective railings along the existing roof-level access walkway. (Linked to 26/06178/FULL)

  9 Sep 2026 Heritage and listed buildings