12 Mabledon Place London WC1H 9AZ

This site has had 7 applications since 2018: 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• 2024/2374/L Withdrawn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
• 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
• 2018/6282/P Refused

  12 Mabledon Place London WC1H 9AZ

  Erection of single storey roof extension.

  Decided 13 Nov 2023 Full applications

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 50 yards 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 50 yards 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 50 yards away

  Erection of mansard roof extension.

  Withdrawn Heritage and listed buildings Extension Loft or dormer

• 12 Mabledon Place London WC1H 9AZ

  2024/1072/T 50 yards away

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

  Granted Trees

• 12 Mabledon Place London WC1H 9AZ

  2018/6282/P Submitted 19 Dec 2018 50 yards away

  Erection of single storey roof extension.

  Refused Full applications Extension 11 docs
  Small domestic

• 27-44 Cartwright Gardens London WC1H 9EH

  2019/0494/L Submitted 12 Dec 2018 50 yards away

  Erection of garden pavilion in the rear garden of hostel.

  Refused Heritage and listed buildings 24 docs

• 2026/1141/L Granted

  25 John Street London WC1N 2BS

  Internal and external alterations to partition layout at basement, supporting structures and external ground level, and alterations to design of conservatory, windows and doors granted under listed building consent 2024/0338/L dated 06/08/2024.

  Received 26 Mar, published by the council 24 Jul 2026 Heritage and listed buildings
• 2025/1781/L Granted

  Frognal Rise House Lower Terrace London NW3 6RE

  Demolition of existing garage and interlinking gallery and replacement with new garage and garden room with link, new basement floor below garden, alterations to main house including replacement windows including reinstated oriel window and new French doors to entrance elevation, new roofing to side wing, new portico and replacement door to front elevation, enlargement of existing lightwell, replacement gates and canopy over entrance gate, restorations of boundary treatments, associated internal alterations including partial underpinning works and other minor alterations.

  Received 22 Apr, published by the council 22 Jul 2026 Heritage and listed buildings
• 2026/4129/L Awaiting decision

  6 Leverton Street London NW5 2PJ

  Strip out kitchen including floor tiles and replace; replace plumbing and flooring in rear ensuite; replace plumbing in front ensuite and WC; replace internal doors; replace garden wall with metal railing; replace 3 rear windows, 3 rear elevation side windows, 1 rear door and 1 rear elevation side door with double-glazed crittal windows and doors; remove 2 rear windows; render rear elevation brickwork; and associated works.

  Received 1 Oct, published by the council 9 Oct 2026 Heritage and listed buildings
• 2026/1686/L Granted

  Flat Ground and 1st Floor and Flat 2nd and 3rd Floor 14 Downshire Hill London NW3 1NR

  External and internal alterations in connection with conversion of two self-contained flats into a single-family dwellinghouse, including new doors at rear ground and second floor level, replacement windows at rear second and third floors level, removal of internal partitions, extending the stair handrail, and replacement internal doors, parquet flooring, skirting, architraves, cornicing, and fittings.

  Received 19 May, published by the council 24 Jul 2026 Heritage and listed buildings
• 2026/2202/L Refused

  4 Hampstead Square London NW3 1AB

  Erection of conservatory to front elevation.

  Received 27 May, published by the council 24 Jul 2026 Heritage and listed buildings