17 Belsize Park Mews London Camden NW3 5BL

1. 22 Jul 2026

   Added to PlanIndex

2. Decision

   Awaiting decision

   The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

   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 full applications in a median of 61 days. More in our guide to how long planning decisions take.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 17 Belsize Park Mews London NW3 5BL

  2018/1593/P Submitted 29 Mar 2018 50 yards away

  Details of external facing materials and manufacturers details as required by condition 4 of planning permission ref: 2017/6728/P dated 06/03/2018 (Alterations to the front elevation of the building to include new brickwork to the front facade, replacement windows and front entrance door, conversion of garage to habitable room with new garage door, and insertion of two new roof lights).

  Granted Full applications Loft or dormer Roofing +1 9 docs

• 17 Belsize Park Mews London NW3 5BL

  2017/6728/P Submitted 5 Dec 2017 50 yards away

  Alterations to the front elevation of the building to include new brickwork to the front facade, replacement windows and front entrance door, conversion of garage to habitable room with new garage door, and insertion of two new roof lights.

  Granted Householder Loft or dormer Roofing +1 6 docs
  Domestic

• 1 Baynes Mews London NW3 5BH

  2026/2015/P Submitted 19 May 2026 50 yards away

  Erection of rear dormers, creation of sunken roof terrace, installation of rooflights and replacement of garage door.

  Granted Householder Loft or dormer 25 docs
  Domestic

• 2 Baynes Mews London NW3 5BH

  2026/0796/P Submitted 27 Feb 2026 50 yards away

  Erection of rear dormers, creation of sunken roof terrace, installation of rooflights, conversion of garage into habitable room and replacement of garage door.

  Granted Householder Loft or dormer 23 docs
  Domestic

• 15 Belsize Park Mews London NW3 5BL

  2026/3909/P Submitted 10 Sep 2026 50 yards away

  99% historically approved · decision due ~9 Nov

  Variation of Condition 2 (Approved Plans) of planning reference 2023/3492/P dated 07/08/26 for erection of roof extension, new basement level, alterations to fenestration and associated works. NAMELY: to allow revisions to the external architectural treatment of approved development.

  Awaiting decision Amendments Extension Windows or glazing 13 docs

• 15 Belsize Park Mews London NW3 5BL

  2023/3492/P 50 yards away

  Erection of roof extension, new basement level, alterations to fenestration and associated works.

  Granted Full applications Extension Windows or glazing

• 2026/0990/P Refused

  1 Bleeding Heart Yard & 19 Greville Street London EC1N 8SJ

  Change of use from office space and restaurant use (Class E) and members club (Sui Generis) to affordable workspace and restaurant use (Class E) and 1 x residential unit on the third and fourth floors (Class C3). Erection of a two-storey roof extension across 19 Greville Street and 1 Bleeding Heart Yard, including alterations at second-floor level to the interior courtyard elevation, ground-floor fenestration changes, and a roof terrace for the associated residential unit.

  Received 26 Mar, published by the council 24 Jul 2026 Full applications
• 2026/3044/P Granted

  London Irish Centre 50-52 Camden Square London NW1 9XB

  Details to discharge Condition 25 Part A (Air Quality Monitoring) of planning permission ref. 2020/1481/P dated 17/05/24 for 'Redevelopment of site to provide new and reconfigured community centre and ancillary residential accommodation (Class D1/ D2) involving alterations to retained buildings at No's. 50, 51 and 52 Camden Square including replacement of two storey 'link' building; demolition of Murray Street and Murray Mews buildings and replacement with part-three / part-four storey building (plus basement level) with second and third floor terraces and new entrance; associated landscaping and cycle parking'.

  Received 20 Jul, published by the council 2 Aug 2026 Full applications
• 2026/4338/P Awaiting decision

  32 Willoughby Road London NW3 1RU

  Details to discharge condition 6 (tree protection methods) of planning permission 2025/4186/P granted 13/11/2025 for 'Demolition of existing two storey outrigger and replacement with part two-storey, part single storey rear extension, loft conversion with dormer and roof light to main roof at rear, new windows to flanking wall, replacement of existing windows and installation of a gate and fence to side'.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications
• 2026/4141/P Awaiting decision

  24 Endell Street London WC2H 9HQ

  Relocation of three air conditioning condenser units to first floor roof, construction of an acoustic enclosure and other associated works.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications
• 2026/3907/P Awaiting decision

  Flat 1 16 Lyndhurst Road London NW3 5NL

  External renovations to the front of the property, including works to the entry porch, steps, replacment front door, installation of metal railings to boundary wall and paving to front garden and erection of a glass roof to the side passage to create a bike shelter.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications