12 Leigh Street London WC1H 9EW

1. 28 Feb 2022

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

Camden granted permission on 28 February 2022, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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.

• 14 Leigh Street London WC1H 9EW

  2014/7251/L 11m away

  Erection of a ground floor rear extension with associated extension to basement and partial change of use of ground floor rear and basement from commercial to residential. The creation of a lightwell and stair to front and remodelling works on upper floors.

  Refused Heritage and listed buildings Extension

• 14 Leigh Street London WC1H 9EW

  2014/7167/P 11m away

  Erection of a ground floor rear extension with associated extension to basement and partial change of use of ground floor rear and basement from commercial to residential. The creation of a lightwell and stair to front and remodelling works on upper floors.

  Refused Full applications Extension

• 14 Leigh Street London WC1H 9EW

  2011/1036/T 11m away

  REAR GARDEN: 1 X Pine - Fell

  Granted Trees

• 14 Leigh Street London WC1H 9EW

  2013/3867/L 11m away

  Internal and external alterations associated with the conversion of ground floor rear and basement from office to residential use to include the erection of a two storey (basement and ground floor levels) rear extension; construction of front lightwell with escape stair; and the internal remodelling of the upper residential floors.

  Granted Heritage and listed buildings Extension

• 14 Leigh Street London WC1H 9EW

  2012/3976/P 11m away

  Partial change of use of ground floor rear and basement from office (B1a) use to residential use (C3); the erection of a two storey (basement and ground floor levels) rear extension and construction of front lightwell with escape stair all to be used in conjunction with the upper residential floors residential accommodation.

  Granted Full applications Extension

• 14 Leigh Street London WC1H 9EW

  2012/3997/L 11m away

  Internal and external alterations associated with the conversion of ground floor rear and basement from office to residential use to include the erection of a two storey (basement and ground floor levels) rear extension; construction of front lightwell with escape stair; and the internal remodelling of the upper residential floors.

  Granted Heritage and listed buildings Extension

• 2026/0825/L Granted

  88 Frognal London NW3 6XB

  Discharge of condition 4 (a) Plan, elevation and section drawings of all new internal doors at a scale of 1:10 with typical moulding and architrave details at a scale of 1:1. b) Plan, elevation and section drawings, including jambs, head and cill, of all new windows and doors, including garage doors and windows, at a scale of 1:10 with typical glazing bar details at 1:1) of 2025/3436/L (External works comprising demolition of existing conservatory and erection of single-storey ground floor extension; demolition of existing garage and erection of replacement garage; alterations and repairs to roof; repair and minor alterations to building facade; provision of new hard and soft landscaping. Interior works comprising general remodelling works; minor changes to planform and openings; installation of new mechanical and electrical services throughout)

  2 Mar 2026 Heritage and listed buildings
• 2026/2946/L Awaiting decision

  Flat 1, 73 Eton Avenue London NW3 3EU

  Replacement of existing defective rear lean-to conservatory with a new slimline powder-coated aluminium framed conservatory with clear double glazing, on the exact same footprint as existing.

  3 Sep 2026 Heritage and listed buildings
• 2026/3754/L Awaiting decision

  10 Great Ormond Street London Camden WC1N 3RB

  Coversion of 3 flats into 4 and internal alterations to the listed building

  2 Sep 2026 Heritage and listed buildings
• 2026/2194/L Withdrawn

  Dunboyne Road Estate Dunboyne Road London NW3 2YY

  Installation of Air Source and Water Source Heat Pumps in basement car park with associated acoustic and security enclosures; installation of PV Panels on roof of Blocks 1, 2 and 3; removal of existing gas boilers and associated plant; installation of a new estate-wide heating network including Heat Interface Units, radiators, pipework and associated infrastructure to serve Flats 1-71; excavation of trenches and installation of below-ground heating, water and electrical infrastructure; and associated ancillary works.

  29 May 2026 Heritage and listed buildings
• 2026/3773/L Awaiting decision

  47 Kelly Street London NW1 8PG

  Replacement of concrete roof tiles with slate roof tiles (Retrospective)

  28 Aug 2026 Heritage and listed buildings