Lief House 3 Sumpter Close London NW3 5HR

This site has had 4 applications since 2025: 2 approved, 0 refused.

• 2026/2312/P Awaiting decision

  Lief House 3 Sumpter Close London NW3 5HR

  Erection of a five-storey upwards extension to existing four-storey building for the provision of new self-contained residential (Class C3) units. Associated works including provision of roof level terrace and plant facility, ground level child play space, cycle store, extension of external bin store, with improved ramp and stepped access to building entrance.

  Submitted 5 Jun 2026 Full applications
• 2025/5786/P Awaiting decision

  Lief House 3 Sumpter Close London NW3 5HR

  New external facade and installation of new windows and doors, including solar shading.

  Submitted 22 Dec 2025 Full applications
• 2025/1982/P Granted

  Lief House 3 Sumpter Close London NW3 5HR

  Change of use from commercial/office (Class E) to residential (Class C3) to create 20no. self-contained dwellings under Schedule 2, Part 3, Class MA of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended).

  Decided 28 Jul 2025 Full applications

1. 24 Nov 2025

   Received by Camden

2. 25 Nov 2025

   Validated

   Checked as complete and ready for consideration.

3. 16 Dec 2025

   Decision issued: Granted

4. 9 Aug 2026

   Added to PlanIndex

• 2025/1982/P Granted

  Lief House 3 Sumpter Close London NW3 5HR

  Change of use from commercial/office (Class E) to residential (Class C3) to create 20no. self-contained dwellings under Schedule 2, Part 3, Class MA of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended).

  Decided 28 Jul 2025 Full applications

Camden granted permission on 16 December 2025, 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.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• Lief House 3 Sumpter Close London NW3 5HR

  2026/2312/P Submitted 5 Jun 2026 50 yards away

  92% historically approved · decision due ~14 Aug

  Erection of a five-storey upwards extension to existing four-storey building for the provision of new self-contained residential (Class C3) units. Associated works including provision of roof level terrace and plant facility, ground level child play space, cycle store, extension of external bin store, with improved ramp and stepped access to building entrance.

  Awaiting decision Full applications Extension 78 docs

• Lief House 3 Sumpter Close London NW3 5HR

  2025/5786/P Submitted 22 Dec 2025 50 yards away

  92% historically approved · decision due ~18 Feb

  New external facade and installation of new windows and doors, including solar shading.

  Awaiting decision Full applications Windows or glazing 20 docs

• Lief House 3 Sumpter Close London NW3 5HR

  2025/1982/P 50 yards away

  Change of use from commercial/office (Class E) to residential (Class C3) to create 20no. self-contained dwellings under Schedule 2, Part 3, Class MA of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended).

  Granted Full applications

• 3 SUMPTER CLOSE LONDON NW3 5HR

  2012/0272/A 50 yards away

  Display of four non-illuminated white metal, clear perspex notice boards on north and south elevations.

  Granted

• 122 Finchley Road London NW3 5JD

  2024/4716/P 50 yards away

  Alterations to shopfront.

  Refused Full applications Windows or glazing

• 122A Finchley Road London NW3 5HT

  2010/5329/P 50 yards away

  Change of use from restaurant (use class A3) to dual use takeaway (use class A5) and restaurant, with associated alterations to single storey rear extension and installation of plant equipment in rear garden structure.

  Refused Full applications Extension
  Small domestic

• 2026/1139/P Granted

  25 John Street London WC1N 2BS

  Alterations to design of conservatory, windows and doors approved under planning permission 2024/0312/P dated 06/08/2024.

  Received 26 Mar, published by the council 24 Jul 2026 Amendments
• 2026/4266/P Awaiting decision

  Unit 3A Camden Wharf London 28 Jamestown Road NW1 7BY

  Variation of the planning permission dated 15.3.1999 (Registered No PE9700702R3) for the redevelopment of the eastern part of the site by the erection of a four-storey building for mixed A1, A3 and B1 and the retention of the lock-keepers cottage as a Canal Information Centre with ancillary retail/ cafe comprising alterations to the elevations, fenestration, shopfront, balustrading, terraces, roof plant and the omission of the approved canopy over the pedestrian area as well as the discharging of part of condition 1 of the said planning permission relating to approval of details of balustrades, shopfronts, the canopy attached to the commercial building and any structure related to it.

  Received 30 Sep, published by the council 6 Oct 2026 Amendments
• 2026/3366/P Granted

  Flat Lower Ground Floor 133 King Henry's Road London NW3 3RD

  Variation of condition 2 (approved plans) of planning permission 2025/1032/P dated 23/04/2025 (which amended 2023/5117/P dated 22/03/2024 (for: Erection of single storey rear extension at lower ground floor, new windows to front and side elevations and new front door) NAMELY, changes to front elevation window and materials

  Received 6 Aug, published by the council 22 Aug 2026 Amendments
• 2026/4223/P Awaiting decision

  6 Conybeare London NW3 3SD

  Variation of Condition 2 (approved plans) of planning permission ref. 2022/2870/P, dated 13/12/2022, for the erection of a single-storey roof extension and internal roof terrace to the front part of the building, namely to regularise amendments to the approved scheme.

  Received 29 Sep, published by the council 6 Oct 2026 Amendments
• 2026/4045/P Granted

  234 - 240 Grafton Road London NW5 4NS

  Non-material amendment to planning permission 2024/4574/P granted 21/01/2026 for 'Erection of mansard roof extension to accommodate 1 x one bedroom and 1 x two bedroom dwellings; erection of a part one part two storey semi-detached one bedroom dwelling within rear garden to Dale Road; new cycle storage within rear garden, installation of 1 x ASHP in rear garden and 2 x ASHP on mansard roof of terrace, alterations to front boundary treatment.' namely to amend windows on the rear elevation of the existing building.

  Received 18 Sep, published by the council 24 Sep 2026 Amendments