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• 2026/2742/T Withdrawn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
• 2023/0482/L Granted

  45 Flask Walk London NW3 1HH

  Details of rear extension brickwork required by part of condition 6 of listed building consent ref. 2016/3901/L (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 8 Mar 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

1. 10 Apr 2017

   Decision issued: Granted Subject to a Section 106 Legal Agreement

2. 22 Jul 2026

   Added to PlanIndex

4 later applications on the register refer to this one:

• 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
• 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
• 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
• 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

Camden granted permission on 10 April 2017, 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.

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.

• 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

• 2026/2471/P Granted

  Flat A 26 Eton Avenue London NW3 3HL

  Proposed elevational alterations to side and rear of the garden flat.

  15 Jun 2026 Full applications
• 2026/2467/P 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 Full applications
• 2026/2424/P Granted

  British Museum Great Russell Street London WC1B 3DG

  Details of SUDS system evidence required by Condition 10 of planning permission ref 2023/1848/P dated 17/07/2024 for Erection of new two storey building, plus basement and associated works to provide plant and welfare accommodation ancillary to the Museum following demolition of existing building and two storey structures on East Road (to the rear of 9-11 Montague Street and 43 Russell Square)

  11 Jun 2026 Full applications
• 2026/3888/P Awaiting decision

  Unit A, Ground Floor West 3-5 Bleeding Heart Yard London EC1N 8SJ

  Replace solid metal ground floor entrance door with glazed entrance door (Retrospective).

  9 Sep 2026 Full applications
• 2026/3903/P Awaiting decision

  2 Fellows Road London NW3 3LP

  Details pursuant to Condition 4 (Materials Details) of planning permission ref. 2026/2123/P (dated 21/07/2026) for: Amalgamation of existing two flats into one single dwellinghouse (Class C3); garage conversion to habitable space; infill extension at front lower ground and ground floors; minor changes to fenestration at rear; erection of copper roof extension with rooflight to existing rear extension; replacement terrace railings; installation of rooflight to main roof; new front boundary railings and gates; refurbishment of front steps; rear garden landscaping works; and associated exterior alterations.

  9 Sep 2026 Full applications