57 Belsize Park London NW3 4EH

This site has had 6 applications since 2011: 2 approved, 2 refused.

• 2015/6492/P Granted

  57 Belsize Park London NW3 4EH

  Use as 23 self contained flats at basement, upper ground and mezzanine, first, second and third floor levels.

  Decided 21 Jan 2016 Full applications
• 2014/3724/P Granted

  57 Belsize Park London NW3 4EH

  Replacing existing door opening on the front elevation of light-well with new timber sash window, rendering existing brickwall and removal of coping stones around lightwell wall, erection of new raised patio area to front elevation to create new soft landscaping and flower bed to enclose lightwell, rendering of front brick boundary wall and placement of coping stones and pier stones on-top.

  Decided 3 Nov 2014 Full applications
• 2013/3192/P Refused

  57 Belsize Park London NW3 4EH

  Erection of an enclosed storage area with green roof in front lightwell of residential building.

  Decided 5 Aug 2013 Full applications
• 2011/5615/P Refused

  57 Belsize Park London NW3 4EH

  Installation of timber door at front basement level and erection of rendered brick wall within lightwell (Retrospective).

  Decided 23 Dec 2011 Full applications
• 2011/4391/P Withdrawn

  57 Belsize Park London NW3 4EH

  Retrospective application to retain timber door accessing front lightwell and brick wall enclosing lightwell for existing HMO premises (Class C4).

  Decided 20 Oct 2011 Full applications

1. 7 Aug 2026

   Received by Camden

2. 14 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 22 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 9 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Camden took a median of 43 days over the applications it decided in the last year.

This application is with Camden for determination, against a statutory target of eight weeks. Over the last year Camden decided lawful development applications in a median of 52 days. More in our guide to how long planning decisions take.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 57 Belsize Park London NW3 4EH

  2011/5615/P 50 yards away

  Installation of timber door at front basement level and erection of rendered brick wall within lightwell (Retrospective).

  Refused Full applications

• 57 Belsize Park London NW3 4EH

  2015/6492/P 50 yards away

  Use as 23 self contained flats at basement, upper ground and mezzanine, first, second and third floor levels.

  Granted Full applications New dwelling

• 57 Belsize Park London NW3 4EH

  2013/3192/P 50 yards away

  Erection of an enclosed storage area with green roof in front lightwell of residential building.

  Refused Full applications

• 57 Belsize Park London NW3 4EH

  2011/4391/P 50 yards away

  Retrospective application to retain timber door accessing front lightwell and brick wall enclosing lightwell for existing HMO premises (Class C4).

  Withdrawn Full applications

• 57 Belsize Park London Camden NW3 4EH

  2023/0789/P 50 yards away

  Conversion of 23 self-contained residential units to 19. Erection of 3x replacement larger dormers and 1 rooflight following demolition of existing.

  Granted Full applications Loft or dormer Demolition

• Garden Flat 58 Belsize Park London NW3 4EH

  2016/6050/T 50 yards away

  REAR GARDEN: 1 x Poplar T1 - remove tree and roots.

  Granted Trees

• 2026/4314/P Awaiting decision

  Basement Flat & Flat Raised Ground Floor 46 Primrose Hill Road London NW3 3AA

  Amalgamation of two self-contained flats to form a self-contained maisonette on lower ground and raised ground floor.

  Received 6 Oct, published by the council 9 Oct 2026 Lawful development
• 2026/4304/P Awaiting decision

  68 Clarence Way London NW1 8DG

  Erection of single storey outbuilding in rear garden.

  Received 2 Oct, published by the council 9 Oct 2026 Lawful development
• 2026/3821/P Granted

  Plots B, C and D at Highgate Studios Highgate Road London NW5 1TL

  Certificate of Lawful Development to confirm the lawful use of the site is for office use (Class E(g)(i)) and that the use of the site as a gym (Class E(d)) or any other use falling within Class E would be lawful.

  Received 4 Sep, published by the council 11 Sep 2026 Lawful development
• 2026/3389/P Granted

  99 Heath Street London NW3 6SS

  Confirmation of the implementation of planning permission 2007/3874/P granted, subject to a legal agreement dated 06/12/2007 for 'Change of use from offices (A2) to single family dwellinghouse (C3), the erection of extension at rear ground floor level within courtyard and formation of a terrace over, extension at ground floor level to western end of courtyard, creation of off-street open car parking space and minor elevational changes to The Mount elevation.', by way of erection of the extension at ground floor level to the western end of the courtyard, creation of an off-street car parking space, and minor elevational changes to the Mount elevation.

  Received 7 Aug, published by the council 15 Aug 2026 Lawful development
• 2026/2493/P Granted

  8 Fitzroy Road London Camden NW1 8TX

  Use of the entire building for a single-family home (C3 residential).

  Received 16 Jun, published by the council 24 Jul 2026 Lawful development