12 Chamberlain Street London NW1 8XB

This site has had 19 applications since 2011: 10 approved, 2 refused.

• 2011/3781/L Granted

  12 Chamberlain Street London NW1 8XB

  Installation of staircase in front basement lightwell and gates within existing railings in connection with dwellinghouse (Class C3).

  Decided 17 Jul 2018 Heritage and listed buildings
• 2013/0316/P Granted

  12 Chamberlain Street London NW1 8XB

  Installation of 1x rooflight to rear flat roof in connection with existing dwelling (Class C3).

  Decided 11 Mar 2013 Full applications
• 2013/0311/L Granted

  12 Chamberlain Street London NW1 8XB

  Internal alterations to staircase and erection of a partition wall at third floor level in connection with existing dwelling (Class C3).

  Decided 4 Mar 2013 Heritage and listed buildings
• 2012/0783/P Refused

  12 Chamberlain Street London NW1 8XB

  Excavation to create sub-basement level and associated internal alterations including extending staircase to existing dwellinghouse (Class C3).

  Decided 22 Mar 2012 Full applications
• 2012/0784/L Refused

  12 Chamberlain Street London NW1 8XB

  Excavation to create sub-basement level and associated internal alterations including extending staircase to existing dwellinghouse (Class C3).

  Decided 22 Mar 2012 Heritage and listed buildings
• 2012/0772/L Granted

  12 Chamberlain Street London NW1 8XB

  Enlargement of basement at rear and installation of 2 x rooflights over at ground floor level (following demolition of existing basement level conservatory and staircase to garden) all in connection with existing dwellinghouse (Class C3).

  Decided 19 Mar 2012 Heritage and listed buildings
• 2012/0771/P Granted

  12 Chamberlain Street London NW1 8XB

  Enlargement of basement at rear and installation of 2 x rooflights over at ground floor level (following demolition of existing basement level conservatory and staircase to garden) all in connection with existing dwellinghouse (Class C3).

  Decided 19 Mar 2012 Full applications
• 2012/0767/L Granted

  12 Chamberlain Street London NW1 8XB

  Alterations to pavement vaults including lowering of floor level, enlargement of vaults and installation of doors all in connection with creation of new utility room and storage to existing dwellinghouse (Class C3).

  Decided 14 Mar 2012 Heritage and listed buildings
• 2012/0766/P Granted

  12 Chamberlain Street London NW1 8XB

  Alterations to pavement vaults including lowering of floor level, enlargement of vaults and installation of doors all in connection with creation of new utility room and storage to existing dwellinghouse (Class C3).

  Decided 14 Mar 2012 Full applications
• 2012/0785/L Granted

  12 Chamberlain Street London NW1 8XB

  Internal alterations at first floor level.

  Decided 13 Mar 2012 Heritage and listed buildings

1. 11 Mar 2013

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

Camden granted permission on 11 March 2013, 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.

• 12 Chamberlain Street London NW1 8XB

  2011/3780/P 50 yards away

  Installation of staircase in front basement lightwell and gates within existing railings in connection with dwellinghouse (Class C3).

  Granted Full applications
  Domestic

• 12 Chamberlain Street London NW1 8XB

  2011/3776/P 50 yards away

  Excavation to create sub-basement level and associated internal alterations including extending staircase to existing dwellinghouse (Class C3).

  Withdrawn Full applications
  Domestic

• 12 Chamberlain Street London NW1 8XB

  2011/3777/L 50 yards away

  Excavation to create sub-basement level and associated internal alterations including extending staircase to existing dwellinghouse (Class C3).

  Withdrawn Heritage and listed buildings
  Domestic

• 12 Chamberlain Street London NW1 8XB

  2011/3773/P 50 yards away

  Enlargement of basement at rear and installation of 2 x rooflights over at ground floor level (following demolition of existing basement level conservatory and staircase to garden) all in connection with existing dwellinghouse (Class C3).

  Withdrawn Full applications Extension Loft or dormer +1
  Small domestic

• 12 Chamberlain Street London NW1 8XB

  2011/3774/L 50 yards away

  96% historically approved

  Enlargement of basement at rear and installation of 2 x rooflights over at ground floor level (following demolition of existing basement level conservatory and staircase to garden) all in connection with existing dwellinghouse (Class C3).

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

• 12 Chamberlain Street London NW1 8XB

  2011/3771/L 50 yards away

  Alterations to pavement vaults including lowering of floor level, enlargement of vaults, installation of windows and steps from lobby under entrance stairs to vaults all in connection with creation of new utility room to existing dwellinghouse (Class C3).

  Withdrawn Heritage and listed buildings Windows or glazing
  Domestic

• 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