23 Harrington Square London NW1 2JJ

This site has had 5 applications since 2011: 1 approved, 4 refused.

• 2014/4254/L Refused

  23 Harrington Square London NW1 2JJ

  Internal and external alteration associated with erection of single storey rear extension at ground floor level to residential flat.

  Decided 25 Sep 2014 Heritage and listed buildings
• 2013/7288/P Refused

  23 Harrington Square London NW1 2JJ

  Erection of single storey rear extension at ground level to residential flat.

  Decided 17 Mar 2014 Full applications
• 2013/7517/L Refused

  23 Harrington Square London NW1 2JJ

  Internal and external alteration associated with erection of single storey rear extension at ground floor level to residential flat.

  Decided 17 Mar 2014 Heritage and listed buildings
• 2011/4569/T Granted

  23 Harrington Square London NW1 2JJ

  REAR GARDEN: 1 x Sycamore - Reduce crown by 30%.

  Decided 20 Sep 2011 Trees

1. 25 Sep 2014

   Decision issued: Refused

2. 22 Jul 2026

   Added to PlanIndex

This application is at appeal, which passes the decision from Camden to the planning inspectorate, and the outcome will replace the council's decision. More in our guide to what happens after a planning decision.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 23 Harrington Square London NW1 2JJ

  2013/7288/P 0m away

  Erection of single storey rear extension at ground level to residential flat.

  Refused Full applications Extension
  Small domestic

• 23 Harrington Square London NW1 2JJ

  2014/4254/L 0m away

  Internal and external alteration associated with erection of single storey rear extension at ground floor level to residential flat.

  Refused Heritage and listed buildings Extension
  Small domestic

• Flats 3 & 4 23 Harrington Square London NW1 2JJ

  2019/5938/L 0m away

  To amalgamate Flat 3 and Flat 4 at ground and first floor levels into one flat by adding a ladder.

  Granted Heritage and listed buildings
  Domestic

• Flats 3 and 4 23 Harrington Square London NW1 2JJ

  2018/5167/L 0m away

  Internal alterations in association with amalgamation of 2 flats into 1 at ground and first floor levels

  Refused Heritage and listed buildings New dwelling
  Several homes

• 23 Harrington Square London NW1 2JJ

  2013/7517/L 0m away

  Internal and external alteration associated with erection of single storey rear extension at ground floor level to residential flat.

  Refused Heritage and listed buildings Extension
  Small domestic

• Flat 3 and Flat 4 23 Harrington Square London NW1 2JJ

  2019/1760/L Submitted 2 Apr 2019 2m away

  Installation of a step ladder to amalgamate two flats at ground and first floor levels into one flat in the closet wing.

  Refused Heritage and listed buildings New dwelling 13 docs
  Domestic

• 2026/3898/P Awaiting decision

  98 Marchmont Street London WC1N 1AG

  Installation of a new kitchen extraction and ventilation system to the rear of the premises, including associated external ductwork, extraction plant and ancillary equipment.

  16 Sep 2026 Full applications
• 2026/2709/P Awaiting decision

  166A Camden Street London NW1 9PT

  Change of use from Use Class E to C3 Residential, demolition of existing store and office space, and erection of a three-bedroom dwellinghouse.

  16 Sep 2026 Full applications
• 2026/3994/P Awaiting decision

  Euston Tower 286 Euston Road London NW1 3DP

  Details to discharge Condition 23 (LUL Subculture) of planning reference 2023/5240/P dated 26/01/26 for redevelopment of Euston Tower comprising retention of parts of the existing building (including central core, basement and foundations) and erection of a new building incorporating these retained elements, to provide a 32-storey mixed-use building providing offices and research and development floorspace (Class E(g)) and office, retail, caf?? and restaurant space (Class E) and Enterprise Space (Class E/F) at ground and first floors, and associated external terraces; public realm enhancements, including new landscaping and provision of new publicly accessible steps and ramp; short and long stay cycle storage; servicing; refuse storage; plant and other ancillary and associated work.

  15 Sep 2026 Full applications
• 2026/3993/P Awaiting decision

  Euston Tower 286 Euston Road London NW1 3DP

  Details to discharge Condition 22 (LUL Infrastructure) of planning reference 2023/5240/P dated 26/01/26 for redevelopment of Euston Tower comprising retention of parts of the existing building (including central core, basement and foundations) and erection of a new building incorporating these retained elements, to provide a 32-storey mixed-use building providing offices and research and development floorspace (Class E(g)) and office, retail, caf?? and restaurant space (Class E) and Enterprise Space (Class E/F) at ground and first floors, and associated external terraces; public realm enhancements, including new landscaping and provision of new publicly accessible steps and ramp; short and long stay cycle storage; servicing; refuse storage; plant and other ancillary and associated work.

  15 Sep 2026 Full applications
• 2026/3861/P Awaiting decision

  Beaumont Court 1-45 College Grove London NW1 0RW

  Installation of condensors and minor alterations to elevations at lower floors.

  15 Sep 2026 Full applications