12 Mabledon Place London WC1H 9AZ

This site has had 7 applications since 2021: 2 approved, 4 refused.

• 2024/2374/L Withdrawn

  12 Mabledon Place London WC1H 9AZ

  Erection of mansard roof extension.

  Decided 9 Aug 2024 Heritage and listed buildings
• 2024/1649/P Refused

  12 Mabledon Place London WC1H 9AZ

  Erection of mansard roof extension to create one additional HMO room.

  Decided 5 Aug 2024 Full applications
• 2024/1072/T Granted

  12 Mabledon Place London WC1H 9AZ

  REAR GARDEN: 1 x London Plane (T1) - Prune back to previous points

  Decided 1 May 2024 Trees
• 2018/6282/P Refused

  12 Mabledon Place London WC1H 9AZ

  Erection of single storey roof extension.

  Decided 13 Nov 2023 Full applications
• 2019/0586/L Refused

  12 Mabledon Place London WC1H 9AZ

  Erection of single storey roof extension.

  Decided 13 Nov 2023 Heritage and listed buildings
• 2019/5543/T Granted

  12 Mabledon Place London WC1H 9AZ

  REAR GARDEN: 1 x London Plane - Reduce by 30% - 35% and thin out by 40 - 50%.

  Decided 9 Apr 2021 Trees

1. 5 Aug 2024

   Decision issued: Refused

2. 22 Jul 2026

   Added to PlanIndex

Camden refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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.

• 12 Mabledon Place London WC1H 9AZ

  2019/5543/T 0m away

  REAR GARDEN: 1 x London Plane - Reduce by 30% - 35% and thin out by 40 - 50%.

  Granted Trees

• 12 Mabledon Place London WC1H 9AZ

  2024/1649/P 0m away

  Erection of mansard roof extension to create one additional HMO room.

  Refused Full applications Extension Loft or dormer

• 12 Mabledon Place London WC1H 9AZ

  2024/2374/L 0m away

  Erection of mansard roof extension.

  Withdrawn Heritage and listed buildings Extension Loft or dormer

• 12 Mabledon Place London WC1H 9AZ

  2024/1072/T 0m away

  REAR GARDEN: 1 x London Plane (T1) - Prune back to previous points

  Granted Trees

• 12 Mabledon Place London WC1H 9AZ

  2018/6282/P 0m away

  Erection of single storey roof extension.

  Refused Full applications Extension
  Small domestic

• 27-44 Cartwright Gardens London WC1H 9EH

  2019/0494/L 12m away

  Erection of garden pavilion in the rear garden of hostel.

  Refused Heritage and listed buildings

• 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