Flat 2, Basement Rear 5 Belsize Square London NW3 4HT

This site has had 2 applications since 2010: 1 approved, 1 refused.

• 2010/1150/P Refused

  Flat 2, Basement Rear 5 Belsize Square London NW3 4HT

  Demolition of existing single storey addition to the rear of 5 Belsize Square, and construction of a single storey rear extension to existing basement flat (Class C3) and enlargement of an existing window, and creation of a new window to the side elevation.

  Decided 22 Apr 2010 Full applications

1. 2 Aug 2010

   Decision issued: Granted

2. 22 Jul 2026

   Added to PlanIndex

Camden granted permission on 2 August 2010, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. 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.

• Flat Basement Rear 5a Belsize Square London NW3 4HT

  2023/4525/P Submitted 20 Oct 2023 50 yards away

  Demolition of existing lower ground-floor single-storey rear extension. Erection of single-storey lower-ground floor rear extension, and associated external alterations.

  Granted Full applications Extension Demolition 12 docs
  Small domestic

• Flat Basement Rear 5a Belsize Square London NW3 4HT

  2023/4351/P Submitted 11 Oct 2023 50 yards away

  Amalgamation of the existing two lower-ground floor flats into one self-contained flat (Use Class C3).

  Granted Lawful development New dwelling 10 docs

• Flat Basement Rear 5a Belsize Square London NW3 4HT

  2024/0630/T Submitted 16 Feb 2024 50 yards away

  REAR GARDEN: 1 x Sycamore (T1) - Reduce height by 3m and lateral spread by 2.5m. 1 x Yew (T2) - Reduce height by 1.5m and lateral spread by 1.5m. 1 x Apple (T3) - Remove a limb pushing fence and thin out by 25%. 1 x Birch (T4) - Reduce height by 0.5m and crown lift by 1.5m. 1 x Bay (T5) - Crown lift by 2m and reduce height by 0.5m.

  Granted Trees 3 docs
  Small domestic

• Flat Basement Rear 5a Belsize Square London NW3 4HT

  2023/5435/P Submitted 22 Dec 2023 50 yards away

  Details to discharge Condition 4 (Green Roof) of planning permission 2023/4525/P dated 13/12/2023 for 'Demolition of existing lower ground-floor single-storey rear extension. Erection of single-storey lower-ground floor rear extension, and associated external alterations'.

  Granted Full applications Extension Demolition 4 docs
  Small domestic

• 5a Belsize Square London NW3 4HT

  2025/0656/P 50 yards away

  Erection of single storey outbuilding in rear garden.

  Granted Full applications
  Small domestic

• 5A Belsize Square London NW3 4HT

  2010/5247/T 50 yards away

  REAR GARDEN: 2 x Sycamore - Reduce/remove lowest branch of left hand tree and crown thin both by 15-20% 1 x Yew - Crown reduce up to 3m (amendment agreed and confirmed by Tomlinsons Tree Surgeons on 19/11/2010)

  Granted Trees

• 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