15 Belsize Square London NW3 4HT

This site has had 2 applications since 2020: 2 approved, 0 refused.

• 2020/3559/P Granted

  15 Belsize Square London NW3 4HT

  Conversion of 2 flats at upper ground and 1st floor levels to form 1 self-contained maisonette (Class C3).

  Decided 6 Oct 2020 Full applications

1. 7 May 2021

   Decision issued: Approve Works (TPO)

2. 22 Jul 2026

   Added to PlanIndex

Camden granted permission on 7 May 2021, 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.

Applications for works to trees cover protected trees: consent under a tree preservation order, or six weeks notice for trees in a conservation area. More in our guide to planning application types.

• 15 A Belsize Square London NW3 4HT

  2014/3310/T 0m away

  (TPO Ref 27H) FRONT GARDEN: 1 x Silver Birch - Reduce back to previous reduction point

  Granted Trees

• 15 Belsize Square London NW3 4HT

  2020/3559/P 0m away

  Conversion of 2 flats at upper ground and 1st floor levels to form 1 self-contained maisonette (Class C3).

  Granted Full applications New dwelling
  Several homes

• 16 Belsize Square

  2020/1958/P 6m away

  Replacement of windows and doors with double glazed windows and doors.

  Withdrawn Full applications Windows or glazing

• Flat B 14 Belsize Square London NW3 4HT

  2015/5005/P 10m away

  Alterations to rear ground floor elevation to allow installation of bi-folding doors and extended balcony with associated balustrade.

  Granted Full applications Windows or glazing

• 14 Belsize Square London NW3 4HT

  2014/4848/P 10m away

  Retention of new garden shed and proposed planting on roof, to be utilised as a design studio and storage space (Retrospective).

  Granted Full applications
  Small domestic

• Flat 1 13 Belsize Square London NW3 4HT

  2019/3404/P Submitted 2 Jul 2019 21m away

  Replacement of the existing lower ground floor front and side elevation timber sash windows with double glazed timber sash windows, replacement of the existing lower ground floor timber windows and doors with metal double glazed windows and doors, removal of the peddle dash to the rear bay window for smooth render and associated external alterations.

  Granted Full applications Windows or glazing 15 docs

• 2026/4010/T Awaiting decision

  Windmill Hill House Windmill Hill London NW3 6SJ

  REAR GARDEN: 1 x Bay (T1) - Fell to ground level.

  16 Sep 2026 Trees
• 2026/4005/T Awaiting decision

  1 Kidderpore Avenue London NW3 7SX

  REAR GARDEN: 1 x London Plane (T1) - Crown reduction by 3m in height bringing lateral growth to shape by 2m leaving the tree a standing height on 11m. 1 x Dead Tree (T4) - Fell to ground level. 1 x Magnolia (T5) - Crown reduction by 1.5m in height bringing lateral growth to shape by 0.5m leaving the tree a standing height of 3m. FRONT GARDEN: 1 x Plum (T2) - Crown reduction by 2m in height bringing lateral growth to shape by 1m, leaving the tree a standing height of 6m.

  16 Sep 2026 Trees
• 2026/4012/T Awaiting decision

  22 Lyndhurst Road London NW3 5NX

  FRONT GARDEN: 1 x Liquidambar (T1) - Reduce height by 2m and shape.

  16 Sep 2026 Trees
• 2026/4009/T Awaiting decision

  1 Kidderpore Avenue London NW3 7SX

  (TPO REF: 18H-T19) FRONT GARDEN: 1 x Yew (T3) - Reduce height by 2m, cutting back overhang to neighbouring garden by 0.5m & trimming round to neaten, leaving the tree a standing height of 5m.

  16 Sep 2026 Trees
• 2026/4011/T Awaiting decision

  10 Well Road London NW3 1LH

  (TPO REF: C33A-T4) FRONT GARDEN: 1 x Lime (T1) - Reduce to previous, most recent pruning points, (approx. 1m - 2m).

  16 Sep 2026 Trees