57 Flask Walk London NW3 1EU

1. 27 Jul 2010

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

Camden granted permission on 27 July 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.

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.

• 57 Flask Walk London NW3 1EY

  2010/2574/P 50 yards away

  External alterations including replacement of window with French doors and enlarged lightwell at rear, replaced landing door at rear, and installation of new relocated door under front staircase to existing dwelling house (Class C3).

  Granted Full applications Windows or glazing
  Domestic

• 57 Flask Walk London NW3 1EY

  2016/1007/L 50 yards away

  The erection of a single storey part-width rear extension at lower ground floor level; replacement of front and rear doors to match existing; associated internal alterations.

  Granted Heritage and listed buildings Extension
  Small domestic

• 57 Flask Walk London NW3 1EY

  2017/0726/P 50 yards away

  Alteration to roof form of single storey rear extension approved under planning permission 2016/0590/P dated 16/05/2016.

  Granted Full applications Extension
  Small domestic

• 57 Flask Walk London NW3 1EY

  2016/0590/P 50 yards away

  The erection of a single storey part-width rear extension at lower ground floor level.

  Granted Full applications Extension
  Small domestic

• 57 Flask Walk LONDON NW3 1EY

  2017/1688/P 50 yards away

  Details of condition 4 [facing materials and samples] of 2016/0590/P, 16/05/2016, for; the erection of a single storey part-width rear extension at lower ground floor level.

  Granted Full applications Extension
  Small domestic

• 57 Flask Walk London NW3 1EY

  2017/0717/L 50 yards away

  Alteration to previously approved rear extension at lower ground floor level (Ref no. 2016/1007/L) namely to raise its height and change the form of the roof; alteration to internal doors.

  Granted Heritage and listed buildings Extension

• 2026/1141/L Granted

  25 John Street London WC1N 2BS

  Internal and external alterations to partition layout at basement, supporting structures and external ground level, and alterations to design of conservatory, windows and doors granted under listed building consent 2024/0338/L dated 06/08/2024.

  Received 26 Mar, published by the council 24 Jul 2026 Heritage and listed buildings
• 2025/1781/L Granted

  Frognal Rise House Lower Terrace London NW3 6RE

  Demolition of existing garage and interlinking gallery and replacement with new garage and garden room with link, new basement floor below garden, alterations to main house including replacement windows including reinstated oriel window and new French doors to entrance elevation, new roofing to side wing, new portico and replacement door to front elevation, enlargement of existing lightwell, replacement gates and canopy over entrance gate, restorations of boundary treatments, associated internal alterations including partial underpinning works and other minor alterations.

  Received 22 Apr, published by the council 22 Jul 2026 Heritage and listed buildings
• 2026/4129/L Awaiting decision

  6 Leverton Street London NW5 2PJ

  Strip out kitchen including floor tiles and replace; replace plumbing and flooring in rear ensuite; replace plumbing in front ensuite and WC; replace internal doors; replace garden wall with metal railing; replace 3 rear windows, 3 rear elevation side windows, 1 rear door and 1 rear elevation side door with double-glazed crittal windows and doors; remove 2 rear windows; render rear elevation brickwork; and associated works.

  Received 1 Oct, published by the council 9 Oct 2026 Heritage and listed buildings
• 2026/1686/L Granted

  Flat Ground and 1st Floor and Flat 2nd and 3rd Floor 14 Downshire Hill London NW3 1NR

  External and internal alterations in connection with conversion of two self-contained flats into a single-family dwellinghouse, including new doors at rear ground and second floor level, replacement windows at rear second and third floors level, removal of internal partitions, extending the stair handrail, and replacement internal doors, parquet flooring, skirting, architraves, cornicing, and fittings.

  Received 19 May, published by the council 24 Jul 2026 Heritage and listed buildings
• 2026/2202/L Refused

  4 Hampstead Square London NW3 1AB

  Erection of conservatory to front elevation.

  Received 27 May, published by the council 24 Jul 2026 Heritage and listed buildings