Upper Maisonette 22 Clarendon Gardens London W9 1AZ

This site has had 2 applications since 2026.

• 26/04311/LBC Awaiting decision

  Upper Maisonette 22 Clarendon Gardens London W9 1AZ

  Internal alterations to second floor.

  Submitted 30 Jun 2026 Heritage and listed buildings

1. 23 Sep 2026

   Received by Westminster

2. 28 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 18 November 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 72 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 94 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.

• 26C Clarendon Gardens London W9 1AZ

  25/06617/ADLBC Submitted 10 Sep 2025 50 yards 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 50 yards away

  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)

  Granted Full applications Extension Windows or glazing 26 docs

• 24 Clarendon Gardens London W9 1AZ

  25/05867/ADLBC Submitted 19 Aug 2025 50 yards away

  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)

  Granted Conditions Extension Windows or glazing 30 docs

• 34 Clarendon Gardens London W9 1AZ

  26/05103/TCA Submitted 29 Jul 2026 50 yards 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

• 26C Clarendon Gardens London W9 1AZ

  26/00673/ADLBC Submitted 21 Nov 2025 50 yards 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).

  Granted Conditions Windows or glazing 7 docs

• 28 Clarendon Gardens London W9 1AZ

  25/08636/LBC Submitted 26 Nov 2025 50 yards away

  90% historically approved · decision due ~21 Jan

  Amalgamation of three residential units to provide one, one bedroom unit and one, three bedroom unit (Class C3); Demolition of existing conservatory and erection of glazed extension to rear, associated plant; renewing, replacement and relocation of windows and associated works. (Linked to 25/08635/FULL)

  Awaiting decision Heritage and listed buildings Extension Demolition +1 20 docs

• 26/06567/LBC Awaiting decision

  105 Eaton Square London SW1W 9AA

  Removal of brick pier between two garage openings and introduction of new fanlights on rear elevation (105 Eccleston Mews) (LInked to 26/06566/FULL)

  Received 23 Sep, published by the council 28 Sep 2026 Heritage and listed buildings
• 26/06506/LBC Awaiting decision

  Basement And Ground Floor 3 New Row London WC2N 4LH

  Internal alterations including the removal and addition of partitions.

  Received 23 Sep, published by the council 29 Sep 2026 Heritage and listed buildings
• 26/06507/LBC Awaiting decision

  Basement And Ground Floor 3 New Row London WC2N 4LH

  Installation of an internally illuminated projecting sign measuring 0.5m x 0.5m; and an internally illuminated fascia sign measuring 0.28m x 0.6m. (Linked with 26/04787/ADV)

  Received 23 Sep, published by the council 25 Sep 2026 Heritage and listed buildings
• 26/06487/LBC Awaiting decision

  25 Bloomfield Terrace London SW1W 8PQ

  Replacement of third floor front window with double glazing sash window; repair of historic windows; installation of two air conditioning condensing units within the rear garden; and internal refurbishment and reconfiguration, including replacement of later joinery and doors. (Linked with 26/06486/FULL)

  Received 22 Sep, published by the council 29 Sep 2026 Heritage and listed buildings
• 26/06483/LBC Awaiting decision

  Dorchester Hotel 53 Park Lane London W1K 1QA

  Installation of rooflight on the southwest corner of the roof. (Linked with 26/06482/FULL)

  Received 22 Sep, published by the council 29 Sep 2026 Heritage and listed buildings