Upper Maisonette 22 Clarendon Gardens London W9 1AZ

This site has had 2 applications since 2026.

• 26/06550/LBC Decided

  Upper Maisonette 22 Clarendon Gardens London W9 1AZ

  Internal alterations to second floor.

  Submitted 23 Sep 2026 Heritage and listed buildings

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 91 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 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.

• 18 Clarendon Gardens London W9 1AZ

  25/08638/LBC Submitted 26 Nov 2025 50 yards 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 50 yards 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 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

• Upper Maisonette 22 Clarendon Gardens London W9 1AZ

  26/06550/LBC Submitted 23 Sep 2026 50 yards away

  90% historically approved · decision due ~18 Nov

  Internal alterations to second floor.

  Decided Heritage and listed buildings

• 26/05473/LBC Decided

  9A Grosvenor Square London W1K 5AE

  Installation of natural Portland Stone paving to two front entrances. (Linked to 26/06273/FULL)

  Received 12 Aug, published by the council 22 Sep 2026 Heritage and listed buildings
• 26/07416/LBC Awaiting decision

  39 Montagu Square London W1H 2LL

  Amalgamation of Flats 3 and 4 to form one single dwelling including associated internal reconfiguration and refurbishments, alterations to access arrangements and improvements to the existing terrace and private amenity spaces. Together with the removal and alteration of modern partitions, roof replacement, rebuilding of the roof terrace, addition of a new staircase, structural works, new window openings, and other associated works. (Linked with 26/07415/FULL)

  Received 30 Oct, published by the council 3 Nov 2026 Heritage and listed buildings
• 26/07404/LBC Awaiting decision

  Basement Floor And Ground Floor Queen Annes House 34 Queen Anne's Gate London SW1H 9AB

  Refurbishment and enhancement of the building to facilitate its continued use as offices with ancillary residential accommodation, together with associated conservation, restoration, accessibility improvements, building services upgrades, landscaping and ancillary works. Internal and external alterations associated with the repair. (Linked with 26/07403/FULL)

  Received 30 Oct, published by the council 3 Nov 2026 Heritage and listed buildings
• 26/07390/LBC Awaiting decision

  40 Wigmore Street London W1U 2RX

  Installation of a non-illuminated fascia sign measuring 0.29m x 0.79m and two vinyl signs applied to inside face of the glazed shopfront each measuring 0.22m x 0.84m. (Linked with 26/06970/ADV)

  29 Oct 2026 Heritage and listed buildings
• 26/07372/LBC Awaiting decision

  8A Randolph Road London W9 1AN

  Amalgamation of two residential units with internal refurbishment and reconfiguration. (Linked with 26/07371/FULL)

  Received 28 Oct, published by the council 2 Nov 2026 Heritage and listed buildings