Flat 1 and Flat 2 25 Belsize Park London NW3 4DU

1. 5 Jun 2026

   Received by Camden

2. 10 Jun 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Jul 2026

   Added to PlanIndex

4. 13 Aug 2026

   Decision issued: Granted

Camden granted permission on 13 August 2026, 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 lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 25 Belsize Park London NW3 4DU

  2022/0086/T 50 yards away

  REAR GARDEN: 1 x Sycamore - Fell to ground level.

  Granted Trees

• Flat 1 25 Belsize Park London NW3 4DU

  2024/4042/T 50 yards away

  FRONT GARDEN: 1 x Pine [T5] - Fell to ground level. 1 x Laburnum [T4] - Fell to ground level.

  Granted Trees

• Flat 4 25 Ferncroft Avenue London NW3 7PG

  2019/5859/P 50 yards away

  Details of windows as required by condition 4(a) of planning permission dated 19/07/2019 ref. 2019/0847/P for Erection of rear extension at 2nd floor level, replacement glazed bay to roof terrace and installation of roof lights to rear.

  Granted Full applications Extension Loft or dormer +1

• 24 Belsize Park London NW3 4DU

  2024/5077/T 50 yards away

  REAR GARDEN: 1 x Ash (T1) - Crown lift by no more than 2.5m. Height reduction of no more than 2.5m and no more than 2m symmetrical lateral reduction.

  Granted Trees

• Flat 1-2 24 Belsize Park London NW3 4DU

  2014/4513/P 50 yards away

  Replacement of two side elevation windows at first and second floor with larger windows to existing flat (class C3).

  Granted Full applications Windows or glazing

• FLAT 1-2 24 Belsize Park London NW3 4DU

  2015/0536/P 50 yards away

  Erection of a single storey timber clad outbuilding.

  Granted Full applications
  Small domestic

• 2026/3834/P Awaiting decision

  49 Maitland Park Road London NW3 2HA

  Enclosure of balcony area on front elevation at 1st floor level to provide habitable accommodation ancillary to the existing residential use of the dwellinghouse (Class C3).

  Received 14 Sep, published by the council 17 Sep 2026 Lawful development
• 2026/3983/P Awaiting decision

  Flat 3 3 Templewood Avenue London NW3 7UY

  Internal alterations to flats 1 and 3 including removal of internal walls

  Received 14 Sep, published by the council 17 Sep 2026 Lawful development
• 2026/3289/P Granted

  1 Elliott Square London NW3 3SU

  Replacement of front garage door with half-height infill wall and aluminium window.

  Received 11 Aug, published by the council 15 Aug 2026 Lawful development
• 2026/3230/P Granted

  6 Lyndhurst Road London NW3 5PX

  Amalgamation of the existing lower ground floor flat and upper maisonette into a single dwellinghouse, involving the formation of a new internal staircase and associated internal alterations.

  Received 29 Jul, published by the council 2 Aug 2026 Lawful development
• 2026/3948/P Awaiting decision

  34 Prince Of Wales Road London NW5 3LG

  Erection of single storey outbuilding in rear garden.

  Received 11 Sep, published by the council 17 Sep 2026 Lawful development