3 Flask Walk London NW3 1HJ

This site has had 3 applications since 2016: 0 approved, 1 refused.

• 2016/0805/L Withdrawn

  3 Flask Walk London NW3 1HJ

  Demolition of unauthorised rear roof covering. Re-covering of provious slope of rear roof with natural welsh slate and enclosure of previous rear balcony area with lead - clad extension

  Decided 13 Sep 2017 Heritage and listed buildings
• 2016/0502/L Refused

  3 Flask Walk London NW3 1HJ

  Erection of rear roof extension (retention).

  Decided 15 Mar 2016 Heritage and listed buildings

1. 18 Oct 2023

   Decision issued: Withdrawn Decision

2. 22 Jul 2026

   Added to PlanIndex

The applicant withdrew this application before Camden decided it, and is free to submit a revised scheme at any time. 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.

• 3 Flask Walk London NW3 1HJ

  2016/0805/L 0m away

  Demolition of unauthorised rear roof covering. Re-covering of provious slope of rear roof with natural welsh slate and enclosure of previous rear balcony area with lead - clad extension

  Withdrawn Heritage and listed buildings Extension Roofing +1

• 7 A Flask Walk Hampstead London NW3 1HJ

  2019/3675/P Submitted 18 Jul 2019 8m away

  The installation of 6 x replacement single glazed timber windows on the front elevation, 4 x at first floor level and 2 x at roof level.

  Granted Full applications Windows or glazing 10 docs

• 7 A Flask Walk Hampstead London NW3 1HJ

  2019/4117/L Submitted 18 Jul 2019 8m away

  The installation of a replacement single glazed timber windows on the front elevation at first and roof level.

  Granted Heritage and listed buildings Windows or glazing 11 docs

• 43 Flat A Hampstead High Street London NW3 1QG

  2018/1341/P 9m away

  Erection of two storey rear extension at first and second floor level and conversion of existing 3 bed flat to provide 2 x 1 bed flats (Class C3).

  Refused Full applications New dwelling Extension

• 5 Flask Walk London NW3 1HJ

  2019/0346/L 10m away

  Details of method of fixing the proposed awning pursuant to condition 4 of listed building consent ref 2017/0738/L dated 12/05/2017 for the Alterations to front elevation at ground floor level including the installation of retractable awning and external lighting.

  Granted Heritage and listed buildings

• 5 Flask Walk London NW3 1HJ

  2017/0566/L 10m away

  Details of facing materials for the replacement floor finish, as required by condition 3 of Listed Building Consent ref 2016/5087/L (dated 24/11/2016) for internal refurbishment of the existing shop (class A1)

  Granted Heritage and listed buildings

• 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