Flat Ground Floor 20 Flask Walk London NW3 1HE

1. 18 Oct 2010

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

Camden granted permission on 18 October 2010, 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.

• Upper Level First Floor Maisonette 20 Flask Walk Hampstead LONDON NW3 1HE

  2020/3408/P 50 yards away

  Demolition and rebuilt of first floor rear extension, installation of railings and green roof on second floor level, alterations to the roof and parapet of ground floor rear extension and windows on the rear elevation and replacement of front and rear windows with timber sash windows.

  Withdrawn Full applications Extension Demolition +1

• 22 Flask Walk London NW3 1HE

  2023/0626/P Submitted 13 Feb 2023 50 yards away

  Demolition of existing single storey ground floor extension and replacement by full width rear and side infill extension with lowered ground levels to rear wing and rear garden; new double glazing to front and rear, including replaced and enlarged windows at rear; installation of rooflights to 2nd floor rear extension and main roof; new railings to front forecourt

  Granted Householder Extension Loft or dormer +2 11 docs
  Small domestic

• 22 Flask Walk London NW3 1HE

  2024/1720/P Submitted 1 May 2024 50 yards away

  Removal of existing pilasters and entablature over front door; installation of a fanlight over the front door to match the existing pattern of the terrace; increase height of front elevation render to match neighbouring no. 20.

  Granted Householder 7 docs
  Domestic

• 24 Flask Walk London NW3 1HE

  2025/1490/P 50 yards away

  Erection of single storey rear extension.

  Granted Full applications Extension
  Small domestic

• The Flask 14 Flask Walk London NW3 1HE

  2014/1876/A 50 yards away

  Installation of a projecting sign to front elevation.

  Granted

• The Flask PH 14 Flask Walk London NW3 1HE

  2012/6667/L 50 yards away

  Internal alterations at ground floor level, including alterations to existing partitioning and formation of a new opening in ceiling beneath existing lantern light.

  Granted Heritage and listed buildings

• 2026/0990/P Refused

  1 Bleeding Heart Yard & 19 Greville Street London EC1N 8SJ

  Change of use from office space and restaurant use (Class E) and members club (Sui Generis) to affordable workspace and restaurant use (Class E) and 1 x residential unit on the third and fourth floors (Class C3). Erection of a two-storey roof extension across 19 Greville Street and 1 Bleeding Heart Yard, including alterations at second-floor level to the interior courtyard elevation, ground-floor fenestration changes, and a roof terrace for the associated residential unit.

  Received 26 Mar, published by the council 24 Jul 2026 Full applications
• 2026/3044/P Granted

  London Irish Centre 50-52 Camden Square London NW1 9XB

  Details to discharge Condition 25 Part A (Air Quality Monitoring) of planning permission ref. 2020/1481/P dated 17/05/24 for 'Redevelopment of site to provide new and reconfigured community centre and ancillary residential accommodation (Class D1/ D2) involving alterations to retained buildings at No's. 50, 51 and 52 Camden Square including replacement of two storey 'link' building; demolition of Murray Street and Murray Mews buildings and replacement with part-three / part-four storey building (plus basement level) with second and third floor terraces and new entrance; associated landscaping and cycle parking'.

  Received 20 Jul, published by the council 2 Aug 2026 Full applications
• 2026/4338/P Awaiting decision

  32 Willoughby Road London NW3 1RU

  Details to discharge condition 6 (tree protection methods) of planning permission 2025/4186/P granted 13/11/2025 for 'Demolition of existing two storey outrigger and replacement with part two-storey, part single storey rear extension, loft conversion with dormer and roof light to main roof at rear, new windows to flanking wall, replacement of existing windows and installation of a gate and fence to side'.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications
• 2026/4141/P Awaiting decision

  24 Endell Street London WC2H 9HQ

  Relocation of three air conditioning condenser units to first floor roof, construction of an acoustic enclosure and other associated works.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications
• 2026/3907/P Awaiting decision

  Flat 1 16 Lyndhurst Road London NW3 5NL

  External renovations to the front of the property, including works to the entry porch, steps, replacment front door, installation of metal railings to boundary wall and paving to front garden and erection of a glass roof to the side passage to create a bike shelter.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications