45 Flask Walk London NW3 1HH

This site has had 13 applications since 2017: 10 approved, 0 refused.

• 2026/3256/P Awaiting decision

  45 Flask Walk London NW3 1HH

  Details required by condition 6 (hard & soft landscaping) of planning permission 2016/3900/P dated 10/04/2017 (for: Demolition of an existing two storey rear extension, erection of a replacement three storey rear extension and basement excavation).

  Submitted 30 Jul 2026 Full applications
• 2026/2742/T Withdrawn

  45 Flask Walk London NW3 1HH

  FRONT GARDEN: 1 x Hawthorn (T1) - Section fell to ground level.

  Decided 13 Jul 2026 Trees
• 2025/1114/L Granted

  45 Flask Walk London NW3 1HH

  Alteration to rear window approved on 10/04/2017 (ref 2016/3901/L) at first-floor level (retrospective).

  Decided 25 Apr 2025 Heritage and listed buildings
• 2024/5666/P Granted

  45 Flask Walk London NW3 1HH

  Amendment to planning permission ref 2016/3900/P dated 10/04/2017 (for: Demolition of an existing two storey rear extension, erection of a replacement three storey rear extension and basement excavation), NAMELY, alterations to the rear window first floor and omission of rear rooflight

  Decided 25 Apr 2025 Full applications
• 2023/2268/L Granted

  45 Flask Walk London NW3 1HH

  Details of lathe and lime plaster repairs to partially discharge condition 5 of listed building consent ref. 2016/3901/L granted 10/04/2017 for the Demolition of an existing two storey rear extension, erection of a replacement three storey rear extension, single storey basement excavation and Internal alterations.

  Decided 27 Jul 2023 Heritage and listed buildings
• 2023/1405/L Granted

  45 Flask Walk London NW3 1HH

  Details of rear extension materials required by part condition 6 of listed building consent ref. 2016/3901/L granted 10/04/2017 for the Demolition of an existing two storey rear extension, erection of a replacement three storey rear extension, single storey basement excavation and Internal alterations.

  Decided 3 May 2023 Heritage and listed buildings
• 2020/1488/P Granted

  45 Flask Walk London NW3 1HH

  Confirmation of the implementation of works under planning permission ref: 2016/3900/P dated 10/04/2017 for 'Demolition of an existing two storey rear extension, erection of a replacement three storey rear extension and basement excavation'.

  Decided 27 Apr 2020 Full applications
• 2020/0685/T Withdrawn

  45 Flask Walk London NW3 1HH

  FRONT GARDEN: 1 x Hawthorn (T1) - Crown reduction of approx. 2m to all aspects of tree.

  Decided 3 Mar 2020 Trees
• 2020/1038/T Granted

  45 Flask Walk London NW3 1HH

  FRONT GARDEN: 1 x Hawthorn (T1) - Crown reduction of approx. 1.5m on all aspects of tree.

  Decided 3 Mar 2020 Trees
• 2018/0573/P Granted

  45 Flask Walk London NW3 1HH

  Details of chartered engineer and tree protection measures as required by conditions 4 and 5 of planning permission ref: 2016/3900/P granted 10/04/2017 for the demolition of an existing two storey rear extension, erection of a replacement three storey rear extension and basement excavation.

  Decided 18 Apr 2018 Full applications

1. 8 Mar 2023

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

• 2016/3901/L Granted

  45 Flask Walk London NW3 1HH

  Demolition of an existing two storey rear extension, erection of a replacement three storey rear extension, single storey basement excavation and Internal alterations.

  Decided 10 Apr 2017 Heritage and listed buildings

Camden granted permission on 8 March 2023, 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.

• 45 Flask Walk London NW3 1HH

  2025/1114/L 0m away

  Alteration to rear window approved on 10/04/2017 (ref 2016/3901/L) at first-floor level (retrospective).

  Granted Heritage and listed buildings Windows or glazing

• 45 Flask Walk London NW3 1HH

  2024/5666/P 0m away

  Amendment to planning permission ref 2016/3900/P dated 10/04/2017 (for: Demolition of an existing two storey rear extension, erection of a replacement three storey rear extension and basement excavation), NAMELY, alterations to the rear window first floor and omission of rear rooflight

  Granted Full applications Extension Loft or dormer +2

• 45 Flask Walk London NW3 1HH

  2023/2268/L 0m away

  Details of lathe and lime plaster repairs to partially discharge condition 5 of listed building consent ref. 2016/3901/L granted 10/04/2017 for the Demolition of an existing two storey rear extension, erection of a replacement three storey rear extension, single storey basement excavation and Internal alterations.

  Granted Heritage and listed buildings Extension Demolition
  Small domestic

• 45 Flask Walk London Camden NW3 1HH

  2023/3912/L 0m away

  Demolition of an existing two storey rear extension, erection of a replacement three storey rear extension, single storey basement excavation and Internal alterations.

  Granted Heritage and listed buildings Extension Demolition
  Small domestic

• 45 Flask Walk London NW3 1HH

  2023/1405/L 0m away

  Details of rear extension materials required by part condition 6 of listed building consent ref. 2016/3901/L granted 10/04/2017 for the Demolition of an existing two storey rear extension, erection of a replacement three storey rear extension, single storey basement excavation and Internal alterations.

  Granted Heritage and listed buildings Extension Demolition
  Small domestic

• 45 Flask Walk London NW3 1HH

  2020/1488/P 0m away

  Confirmation of the implementation of works under planning permission ref: 2016/3900/P dated 10/04/2017 for 'Demolition of an existing two storey rear extension, erection of a replacement three storey rear extension and basement excavation'.

  Granted Full applications Extension Demolition

• 2026/3649/L Awaiting decision

  83 Highgate West Hill London N6 6LU

  Proposed internal alterations including adding secondary glazing to windows internally and reconfigurations of floor layouts, erection of two rear dormers replacing the existing rear dormer, removal of the existing triangular front dormer and solar panel to rear roof, replacement of existing handrails with metal railings, installation of an A/C unit on rooftop, replacement of the glazed roof of the lower ground floor rear extension with a solid flat roof, and re-landscaping to front courtyard.

  10 Sep 2026 Heritage and listed buildings
• 2026/0903/L Granted

  61-63 Cartwright Gardens London Camden WC1H 9EL

  Details pursuant to condition 2 (ground floor windows) and 3 (railings) of listed building consent 2023/2307/L (Allowed at appeal APP/X5210/Y/24/3338859 dated 30/08/2024) for; 'Erection of external lift to rear elevation and associated external alterations. Internal alterations to accommodate lift access'

  9 Mar 2026 Heritage and listed buildings
• 2026/2510/L Granted

  Flat A 26 Eton Avenue London NW3 3HL

  Proposed internal alterations and external alterations to side and rear elevations of the garden flat.

  15 Jun 2026 Heritage and listed buildings
• 2026/2891/L Granted

  42 Mornington Terrace London Camden NW1 7RT

  Replacement door and window at lower ground floor level to rear outrigger and installation of sandstone steps in rear garden.

  12 Jun 2026 Heritage and listed buildings
• 2026/3851/L Awaiting decision

  10 Chalcot Crescent London NW1 8YD

  Variation of condition 2 (drawings) to listed building consent 2025/4952/L dated 16/01/2026 for 'Erection of a lower ground floor rear extension and internal alterations' for the removal of the existing non-original loft hatch and roof hatch above, and the installation of an automatic opening vent (AOV) rooflight.

  8 Sep 2026 Heritage and listed buildings