25 Lancaster Grove London NW3 4EX

This site has had 5 applications since 2012: 4 approved, 1 refused.

• 2015/3412/P Granted

  25 Lancaster Grove London NW3 4EX

  Proposed conversion of 1no. one-bedroom flat and 1no. studio flat into 1no. two-bedroom flat at first floor level.

  Decided 19 Dec 2016 Full applications
• 2015/0356/P Granted

  25 Lancaster Grove London NW3 4EX

  Single storey rear extension to lower ground floor; creation of a rear roof terrace to ground floor flat; enlargement of lower ground floor unit to a 3 bed flat and ground floor unit to a 2 bed flat; additional side windows at lower ground floor level and associated works.

  Decided 8 Apr 2015 Full applications
• 2014/0360/P Granted

  25 Lancaster Grove London NW3 4EX

  Conversion of lower ground floor and ground floor flats (1 x 1 bed and 1 x 2 bed) to a 4 bed maisonette and erection of single storey lower ground floor rear extension.

  Decided 22 Apr 2014 Full applications
• 2012/2698/P Refused

  25 Lancaster Grove London NW3 4EX

  Change of use from six self-contained flats to a single-family dwellinghouse (Class C3).

  Decided 24 Jul 2012 Full applications

1. 28 Jun 2016

   Decision issued: No Objection to Works to Tree(s) in CA

2. 22 Jul 2026

   Added to PlanIndex

Camden granted permission on 28 June 2016, 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.

• 25 Lancaster Grove London NW3 4EX

  2012/2698/P 0m away

  Change of use from six self-contained flats to a single-family dwellinghouse (Class C3).

  Refused Full applications New dwelling
  Domestic

• Garden Flat 25 Lancaster Grove London NW3 4EX

  2025/5477/P Submitted 2 Dec 2025 0m away

  Erection of a garden room at rear

  Granted Full applications 16 docs

• 25 Lancaster Grove London NW3 4EX

  2015/0356/P 0m away

  Single storey rear extension to lower ground floor; creation of a rear roof terrace to ground floor flat; enlargement of lower ground floor unit to a 3 bed flat and ground floor unit to a 2 bed flat; additional side windows at lower ground floor level and associated works.

  Granted Full applications Extension Windows or glazing
  Small domestic

• Garden Flat 25 Lancaster Grove London NW3 4EX

  2026/3432/P Submitted 11 Aug 2026 0m away

  91% historically approved · decision due ~15 Oct

  Green roof details and tree protection details required by conditions 3 and 4 of planning permission reference 2025/5477/P granted 14/05/2026 for the erection of a garden room at rear.

  Awaiting decision Full applications Trees 11 docs

• Garden Flat 25 Lancaster Grove London NW3 4EX

  2026/3587/06BGP Submitted 11 Aug 2026 0m away

  94% historically approved · decision due ~15 Oct

  Biodiversity Gain Plan (BGP) required by planning permission reference 2025/5477/P granted 14/05/2026 for the erection of a garden room at rear.

  Awaiting decision 5 docs

• 25 Lancaster Grove London NW3 4EX

  2015/3412/P 0m away

  Proposed conversion of 1no. one-bedroom flat and 1no. studio flat into 1no. two-bedroom flat at first floor level.

  Granted Full applications

• 2026/3175/T Granted

  10 Ellerdale Road London NW3 6BB

  REAR GARDEN: 1 x Holly (T1) - Remove 3 branches over No 8 to lift crown over garden to give 4m clearance from ground level.

  6 Aug 2026 Trees
• 2026/3819/T Awaiting decision

  8 Downshire Hill London NW3 1NR

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

  4 Sep 2026 Trees
• 2026/3786/T Awaiting decision

  16 Shirlock Road London NW3 2HS

  FRONT GARDEN: 1 x Lime (T1) - Fell to ground level. REAR GARDEN: 1 x Philadelphus (T2) - reduce height to approx. 1m from ground level. 1 x Wigela (T3) - Fell to ground level. 1 x Viburnum (T4) - Reduce height to approx. 2m from ground level.

  3 Sep 2026 Trees
• 2026/3789/T Awaiting decision

  8 Boscastle Road London NW5 1EG

  REAR GARDEN: 1 x Pear (T1)- Reduce crown by up to 2.5m, not beyond previous points of reduction. 1 x Pear (T3) - Reduce crown by up to 2.5m,

  3 Sep 2026 Trees
• 2026/3797/T Awaiting decision

  Belsize Court Wedderburn Road London NW3 5QN

  FRONT AREA (SEE MAP): 1 x Crab Apple (T31) - Crown reduce by 3m - 4m to approx. red lines in photo. 1 x London Plane (T44) - Crown reduce lower canopy overhanging road by 3m - 4m to balance crown.

  3 Sep 2026 Trees