12 Belsize Road London NW6 4RD

This site has had 3 applications since 2012: 2 approved, 0 refused.

• 25-00117-HAPP Granted

  12 Belsize Road London NW6 4RD

  Erection of a mansard roof extension to the flat roof of the side extension.

  Decided 7 Apr 2025 Householder
• 2016/3518/P Granted

  12 Belsize Road London NW6 4RD

  Erection of a part single part two storey side extension

  Decided 26 Aug 2016 Full applications

1. 15 Oct 2012

   Decision issued: Withdrawn Decision

2. 22 Jul 2026

   Added to PlanIndex

The applicant withdrew this application before Camden decided it, and is free to submit a revised scheme at any time. More in our guide to what happens after a planning decision.

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.

• 12 Belsize Road London NW6 4RD

  2016/3518/P 50 yards away

  Erection of a part single part two storey side extension

  Granted Full applications Extension

• 10 and 12 Belsize Road London NW6 4RD

  2020/4660/P 50 yards away

  Variation of condition 3 (approved plans) of planning permission 2018/5913/P dated 19/02/2019 (for the Erection of a part single part two storey side extension to No.12 (to include removal of existing boundary wall), namely, extension of the side extension; installation on new gate into the side passage with new external staircase; alterations to the fenestration treatment to the front and rear elevations including installation of sliding doors at ground floor level; replacement of existing window with door for recess balcony to the rear first floor; new timber framed window to the front first floor window.

  Granted Full applications Extension Windows or glazing
  Small domestic

• 12 Belsize Road London NW6 4RD

  25-00117-HAPP 50 yards away

  Erection of a mansard roof extension to the flat roof of the side extension.

  Granted Householder Extension Loft or dormer
  Domestic

• 10 & 12 Belsize Road London NW6 4RD

  2018/5913/P Submitted 3 Dec 2018 50 yards away

  Erection of a part single part two storey side extension to no.12 (to include removal of existing boundary wall)

  Granted Householder Extension 11 docs
  Small domestic

• 14 Belsize Road London NW6 4RD

  2018/4327/P Submitted 10 Sep 2018 50 yards away

  Erection of single storey rear extension to dwelling house following demolition of existing rear structure [subsequent to prior approval granted on 07/08/2018 under ref: 2018/3652/P]

  Granted Lawful development Extension Demolition 8 docs
  Small domestic

• 14 Belsize Road London NW6 4RD

  2018/3652/P Submitted 2 Aug 2018 50 yards away

  Prior approval for the erection of a single storey rear extension to dwelling house (Depth: 4.5m; Maximum height: 3.2m; Eaves height: 3.0m) following demolition of existing rear structure

  Granted Prior approval Extension Demolition 7 docs
  Small domestic

• 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