Belsize Square Apartments 25 Belsize Square London NW3 4HU

1. 17 Sep 2026

   Received by Camden

2. 21 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 16 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Camden took a median of 43 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 61 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.

• 22 Belsize Square London NW3 4HU

  2026/2618/T Submitted 23 Jun 2026 50 yards away

  REAR GARDEN: 3 x Silver Birch (T1 - T3) - Prune back overhanging growth to boundary line approx. 2m - 2.5m. All works will be undertaken in accordance with BS39982010 - Tree Work - Recommendations.

  Granted Trees 7 docs

• Flat 2nd Floor 23 Belsize Square London NW3 4HU

  2021/3387/P 50 yards away

  Replacement of existing front and rear dormers, creation of a rear roof terrace, including formation of a decking area on the roof of the bay extension at the rear and installation of metal railings all in association with the top floor flat.

  Withdrawn Full applications Extension Loft or dormer

• Garden Flat & Ground Floor Flat D 26 Belsize Square London NW3 4HU

  2013/4081/P 50 yards away

  Conversion of 2x residential flats to 1x maisonette at lower ground and ground floor level, including general repairs and removal of security bar from a window within the front elevation at lower ground floor level (Class C3).

  Granted Full applications New dwelling Windows or glazing

• 26 Belsize Square London NW3 4HU

  2013/5423/P 50 yards away

  Erection of infill side extension with gravel finished roof above, use of existing rear extension at raised ground floor level as terrace with metal railing balustrade to replace existing pitched roof, replacement of windows with French doors at rear lower & raised ground floor levels, removal of external side stair, replacement of railing to section of boundary wall with brickwork, and works of hard landscaping to rear garden of the existing residential flat (Class C3).

  Granted Full applications Extension Roofing +1
  Small domestic

• 26 Belsize Square London NW3 4HU

  2021/1258/T 50 yards away

  REAR GARDEN: 1 x Mimosa Fell to ground level and remove all arisings.

  Granted Trees

• 3 Lancaster Drive London NW3 4EY

  2017/5173/T 50 yards away

  REAR GARDEN: 2 x Silver Birches - Reduce crowns by 30%

  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