35 Flask Walk London NW3 1HH

This site has had 8 applications since 2015: 8 approved, 0 refused.

• 2018/4261/P Granted

  35 Flask Walk London NW3 1HH

  Details of tree protection measures required by condition 5 of planning permission 2017/1328/P (dated 08/09/2017) for the 'Alterations to dwelling including the extension and alterations to rear garden annex; construction of a covered walkway in the garden courtyard; alterations to fenestrations; replacement boundary treatment to front and side; and minor alterations'

  Decided 8 Nov 2018 Full applications
• 2017/6984/P Granted

  35 Flask Walk London NW3 1HH

  Submission of green roof details as required by condition 4 of 2017/1328/P (dated 08/09/2017) for the 'alterations to dwelling including the extension and alterations to rear garden annex; construction of a covered walkway in the garden courtyard; and replacement boundary treatment'

  Decided 14 Feb 2018 Full applications
• 2017/1328/P Granted

  35 Flask Walk London NW3 1HH

  Alterations to GII listed dwelling including the extension and alterations to rear garden annex; construction of a covered walkway in the garden courtyard; alterations to fenestrations; replacement boundary treatment to front and side; and minor alterations to main dwelling (Use Class C3).

  Decided 8 Sep 2017 Full applications
• 2017/1549/L Granted

  35 Flask Walk London NW3 1HH

  Internal and external alterations to GII listed dwelling in association with extension to the garden annex; construction of a covered walkway in the rear courtyard; alteration to fenestrations; and various internal alterations to main dwelling.

  Decided 8 Sep 2017 Heritage and listed buildings
• 2015/6875/P Granted

  35 Flask Walk London NW3 1HH

  Discharge of condition 6 (tree protection measures) pursuant to reference 2014/6213/P dated 07/07/15 (for extension to the garden annex to provide accommodation on two levels, construction of a covered walkway in the garden courtyard and minor alterations to main single family dwellinghouse).

  Decided 3 Feb 2016 Full applications
• 2014/6564/L Granted

  35 Flask Walk London NW3 1HH

  Internal and external works associated with extension to the garden annex to provide accommodation on two levels, construction of a covered walkway in the garden courtyard and internal alterations including replacement of the existing rear door to window all in association with the main single family dwelling (Class C3).

  Decided 7 Jul 2015 Heritage and listed buildings
• 2014/6213/P Granted

  35 Flask Walk London NW3 1HH

  Extension to the garden annex to provide accommodation on two levels, construction of a covered walkway in the garden courtyard and minor alterations to main single family dwellinghouse (Use Class C3).

  Decided 7 Jul 2015 Full applications

1. 13 Feb 2019

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

• 2017/1549/L Granted

  35 Flask Walk London NW3 1HH

  Internal and external alterations to GII listed dwelling in association with extension to the garden annex; construction of a covered walkway in the rear courtyard; alteration to fenestrations; and various internal alterations to main dwelling.

  Decided 8 Sep 2017 Heritage and listed buildings

Camden granted permission on 13 February 2019, 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.

• 35 Flask Walk London NW3 1HH

  2017/6984/P 0m away

  Submission of green roof details as required by condition 4 of 2017/1328/P (dated 08/09/2017) for the 'alterations to dwelling including the extension and alterations to rear garden annex; construction of a covered walkway in the garden courtyard; and replacement boundary treatment'

  Granted Full applications Extension
  Domestic

• 35 Flask Walk London NW3 1HH

  2017/1328/P 0m away

  Alterations to GII listed dwelling including the extension and alterations to rear garden annex; construction of a covered walkway in the garden courtyard; alterations to fenestrations; replacement boundary treatment to front and side; and minor alterations to main dwelling (Use Class C3).

  Granted Full applications Extension
  Domestic

• 35 Flask Walk London NW3 1HH

  2017/1549/L 0m away

  Internal and external alterations to GII listed dwelling in association with extension to the garden annex; construction of a covered walkway in the rear courtyard; alteration to fenestrations; and various internal alterations to main dwelling.

  Granted Heritage and listed buildings Extension
  Domestic

• 35 Flask Walk London NW3 1HH

  2014/6564/L 0m away

  Internal and external works associated with extension to the garden annex to provide accommodation on two levels, construction of a covered walkway in the garden courtyard and internal alterations including replacement of the existing rear door to window all in association with the main single family dwelling (Class C3).

  Granted Heritage and listed buildings Extension Windows or glazing
  Domestic

• 35 Flask Walk London NW3 1HH

  2015/6875/P 0m away

  Discharge of condition 6 (tree protection measures) pursuant to reference 2014/6213/P dated 07/07/15 (for extension to the garden annex to provide accommodation on two levels, construction of a covered walkway in the garden courtyard and minor alterations to main single family dwellinghouse).

  Granted Full applications Extension Trees
  Domestic

• 35 Flask Walk London NW3 1HH

  2018/4261/P 0m away

  Details of tree protection measures required by condition 5 of planning permission 2017/1328/P (dated 08/09/2017) for the 'Alterations to dwelling including the extension and alterations to rear garden annex; construction of a covered walkway in the garden courtyard; alterations to fenestrations; replacement boundary treatment to front and side; and minor alterations'

  Granted Full applications Extension Trees
  Domestic

• 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