12 Chalcot Square London NW1 8YA

This site has had 2 applications since 2026.

• 2026/2112/L Awaiting decision

  12 Chalcot Square London NW1 8YA

  Replacement of solar panels on the front elevation, 2x new sash windows on the rear lower and upper ground floors, new roof skylight to the rear 1st floor half-landing and internal alterations.

  Submitted 14 May 2026 Heritage and listed buildings

1. 14 May 2026

   Received by Camden

2. 22 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 17 July 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 42 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 householder applications in a median of 58 days. More in our guide to how long planning decisions take.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 12 Chalcot Square London NW1 8YA

  2026/2112/L Submitted 14 May 2026 50 yards away

  96% historically approved · decision due ~17 Jul

  Replacement of solar panels on the front elevation, 2x new sash windows on the rear lower and upper ground floors, new roof skylight to the rear 1st floor half-landing and internal alterations.

  Awaiting decision Heritage and listed buildings Roofing Windows or glazing 3 docs

• Maisonette Ground 1st 2nd And 3rd Floor 13 Chalcot Square London NW1 8YA

  2026/1086/L Submitted 12 Mar 2026 50 yards away

  Repair of unoriginal windows with new double glazed panes, replacement of windows with new heritage detailed timber framed double glazed units, one new window to the rear facade, alterations to the internal layout of the property, refurbishment of the floor and wall finishes and restoration works to the front and rear facades and front forecourt.

  Granted Heritage and listed buildings Windows or glazing 2 docs

• 13 Chalcot Square London NW1 8YA

  2013/1946/L 50 yards away

  Erection of lower ground floor rear extension, installation of new windows to the rear elevation at lower ground and ground floor level and replacement of double doors and Juliet balcony with window at first floor level together with alterations to the internal layout (Class C3).

  Granted Heritage and listed buildings Extension Windows or glazing

• 13 Chalcot Square London NW1 8YA

  2010/1147/P 50 yards away

  Excavation of front extension to basement level residential flat (Class C3).

  Granted Full applications Extension

• 13 Chalcot Square London NW1 8YA

  2013/1942/L 50 yards away

  External and internal alterations associated with erection of single storey rear extension at first floor level, replacement of Juliet balcony with window and alterations to existing rear windows at ground and first floor level to residential flat (Class C3).

  Refused Heritage and listed buildings Extension Windows or glazing
  Small domestic

• 13 Chalcot Square London NW1 8YA

  2013/5964/L 50 yards away

  Details pursuant to conditions 2 (detailing) & 3 (structural engineering) of listed building consent 2010/1149/L dated 22/06/2010 (Internal alterations associated with the conversion of two existing residential flats at first, second and third floor levels to provide a single five bedroom maisonette).

  Granted Heritage and listed buildings New dwelling

• 2026/3064/P Granted

  205 Albany Street London NW1 4AB

  Installation of a free standing air source heat pump in the rear courtyard. Installation of an innovative, thin and flexible PV panels to the flat section of the roof

  Received 21 Jul, published by the council 24 Jul 2026 Householder
• 26-00297-HAPP Granted

  55 PATSHULL ROAD LONDON NW5 2LE

  Part 1-storey and 2-storey side and rear extensions, alterations to both rear and front gardens with introduction cycle parking at front

  Received 27 Apr, published by the council 24 Jul 2026 Householder
• 2026/3121/P Awaiting decision

  15 Elliott Square London NW3 3SU

  Erection of a single-storey rear and side extension, one new windows to the side elevation, alterations to the existing garage opening, and replacement of the front door.

  Received 17 Sep, published by the council 21 Sep 2026 Householder
• 2026/3120/P Awaiting decision

  15 Elliott Square London NW3 3SU

  Erection of a single-storey rear extension, two new windows to the side elevation, alterations to the existing garage opening and replacement of the front door.

  Received 17 Sep, published by the council 21 Sep 2026 Householder
• 2026/3997/P Awaiting decision

  33 Dartmouth Park Avenue London NW5 1JL

  Enlargement of existing two dormer windows on the rear and side elevations including a new rear rooflight and installation of air conditioning unit on rear roof.

  Received 16 Sep, published by the council 21 Sep 2026 Householder