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 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 full applications in a median of 56 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 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

• 17 Belsize Park Mews London NW3 5BL

  2017/6728/P 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 Full applications Loft or dormer Roofing +1

• 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

  98% 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 10 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

• 2026/0369/P Granted

  Railway embankment and land west of 49 Adelaide Road London NW3 3QB

  Installation of a new DNO (Distribution Network Operator) cabinet and erection secure access gate to Adelaide Road, erection of staircase to railway embankment, associated works.

  Received 17 Jul, published by the council 24 Jul 2026 Full applications
• 2026/3694/P Granted

  19 Charterhouse Street London EC1N 6RA

  Details pursuant to condition 19 (external lighting) of planning permission 2025/1683/P, granted subject to a legal agreement on 05/06/2026, for remodelling, refurbishment and extensions (including 3 additional storeys) of the existing building to provide Use Class E (commercial, retail/restaurant and jewellery workspace) and associated landscaping and facade works.

  Received 27 Aug, published by the council 5 Sep 2026 Full applications
• 2026/3904/P Granted

  14 Templewood Avenue London NW3 7XA

  Details pursuant to Condition 5 (Tree protection measures) of planning permission 2026/2315/P dated 10/08/2026 for "Erection of an orangery/outbuilding in the rear garden."

  Received 9 Sep, published by the council 11 Sep 2026 Full applications
• 2025/2002/P Granted

  11 Doughty Street London WC1N 2PL

  Change of use from office (Class E) to residential to form a single-family dwelling (Class C3); associated internal and external alterations

  Received 9 May, published by the council 22 Jul 2026 Full applications
• 2026/3551/P Granted

  19 Charterhouse Street London EC1N 6RA

  Details pursuant to condition 21 (Details of gates/barriers onto Charterhouse Street) of planning permission 2025/1683/P, granted subject to a legal agreement on 05/06/2026, for remodelling, refurbishment and extensions (including 3 additional storeys) of the existing building to provide Use Class E (commercial, retail/restaurant and jewellery workspace) and associated landscaping and facade works.

  Received 19 Aug, published by the council 22 Aug 2026 Full applications