21 Frognal Lane London NW3 7DB

This site has had 6 applications since 2012: 4 approved, 2 refused.

• 2019/5090/T Granted

  21 Frognal Lane London NW3 7DB

  DD 5 Day Notice REAR GARDEN: 1 x Hawthorn - Fell to ground level.

  Decided 10 Oct 2019 Trees
• 2012/5590/L Granted

  21 Frognal Lane London NW3 7DB

  Details pursuant to conditions 3 (a), (b) & (c) (drawings at 1:10 of junction of extension to existing house, eaves, glazing details, head and jambs of door and basement lightwell door) of listed building consent dated 03/08/12 (Ref 2012/2707/L) for erection of single storey rear ground floor level extension and replacement of window with door in existing rear basement lightwell.

  Decided 11 Jan 2013 Heritage and listed buildings
• 2012/2653/P Granted

  21 Frognal Lane London NW3 7DB

  Erection of single storey rear ground floor level extension with rooflight, new steel staircase between ground floor and basement and replacement of window with door in existing rear basement lightwell all in connection with existing residential dwelling (Class C3).

  Decided 3 Aug 2012 Full applications
• 2012/0847/P Refused

  21 FROGNAL LANE LONDON NW3 7DB

  Erection of single storey rear ground floor level extension with rooflight, new steel staircase and replacement of window with door in existing rear basement lightwell all in connection with existing dwellinghouse (Class C3).

  Decided 20 Apr 2012 Full applications
• 2012/0995/L Refused

  21 FROGNAL LANE LONDON NW3 7DB

  Erection of single storey rear ground floor level extension with rooflight, new steel staircase and replacement of window with door in existing rear basement lightwell all in connection with existing dwellinghouse (Class C3).

  Decided 20 Apr 2012 Heritage and listed buildings

1. 3 Aug 2012

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

1 later application on the register refers to this one:

• 2012/5590/L Granted

  21 Frognal Lane London NW3 7DB

  Details pursuant to conditions 3 (a), (b) & (c) (drawings at 1:10 of junction of extension to existing house, eaves, glazing details, head and jambs of door and basement lightwell door) of listed building consent dated 03/08/12 (Ref 2012/2707/L) for erection of single storey rear ground floor level extension and replacement of window with door in existing rear basement lightwell.

  Decided 11 Jan 2013 Heritage and listed buildings

Camden granted permission on 3 August 2012, 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.

• 21 Frognal Lane London NW3 7DB

  2012/2653/P 50 yards away

  Erection of single storey rear ground floor level extension with rooflight, new steel staircase between ground floor and basement and replacement of window with door in existing rear basement lightwell all in connection with existing residential dwelling (Class C3).

  Granted Full applications Extension Loft or dormer +1
  Small domestic

• 21 FROGNAL LANE LONDON NW3 7DB

  2012/0847/P 50 yards away

  Erection of single storey rear ground floor level extension with rooflight, new steel staircase and replacement of window with door in existing rear basement lightwell all in connection with existing dwellinghouse (Class C3).

  Refused Full applications Extension Loft or dormer +1
  Small domestic

• 21 FROGNAL LANE LONDON NW3 7DB

  2012/0995/L 50 yards away

  Erection of single storey rear ground floor level extension with rooflight, new steel staircase and replacement of window with door in existing rear basement lightwell all in connection with existing dwellinghouse (Class C3).

  Refused Heritage and listed buildings Extension Loft or dormer +1
  Small domestic

• 21 Frognal Lane London NW3 7DB

  2012/5590/L 50 yards away

  Details pursuant to conditions 3 (a), (b) & (c) (drawings at 1:10 of junction of extension to existing house, eaves, glazing details, head and jambs of door and basement lightwell door) of listed building consent dated 03/08/12 (Ref 2012/2707/L) for erection of single storey rear ground floor level extension and replacement of window with door in existing rear basement lightwell.

  Granted Heritage and listed buildings Extension Windows or glazing
  Small domestic

• 21 Frognal Lane London NW3 7DB

  2019/5090/T 50 yards away

  DD 5 Day Notice REAR GARDEN: 1 x Hawthorn - Fell to ground level.

  Granted Trees

• 19 Frognal Lane London NW3 7DB

  2015/0448/L 50 yards away

  Various internal works including installation of jib door,and relocation of kitchen and associated partitions

  Granted Heritage and listed buildings

• 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