20/3594

1. 5 Nov 2020

   Received by Brent

2. 22 Dec 2020

   Decision issued: Certificate of Lawfulness - Granted

3. 25 Jul 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 26/0692 Granted

  2 Crummock Gardens, London, NW9 0DG

  Proposed demolition of side shower room, erection of two storey side extension, rear dormer extension, hip to gable roof extension with 2x front rooflights and installation of 1x window to rear elevation to the dwellinghouse.

  18 Mar 2026 0m away Householder
• 20/2929 Granted

  42 Crummock Gardens, London, NW9 0DG

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3.84m Eaves height - 3m

  17 Sep 2020 0m away Prior approval
• 20/3884 Refused

  31 Crummock Gardens, London, NW9 0DE

  First floor side and rear extension to dwellinghouse

  26 Nov 2020 36m away Householder
• 20/3886 Withdrawn

  33 Crummock Gardens, London, NW9 0DE

  First floor side and rear extension to dwellinghouse

  26 Nov 2020 36m away Householder
• 20/3551 Granted

  59 Crummock Gardens, London, NW9 0DE

  Certificate of lawfulness proposed for a roof alteration consisting of a hipped to gable extension; rear dormer window; TWO (2) flank windows; TWO (2) roof-lights to front slope and chimney stack removal from the dwellinghouse.

  2 Nov 2020 36m away Lawful development
• 24/1869 Granted

  20 Ennerdale Drive, London, NW9 0DT

  Proposed conversion of single dwelling into 2x self-contained flats with refuse and cycle storages to the front

  5 Jul 2024 71m away Full applications

• 26/1465 Granted

  8 Roe Green, London, NW9 0NY

  Certificate of lawfulness for proposed hip to gable extension and rear dormer window with 3x front rooflights to the dwellinghouse.

  10 Jun 2026 Lawful development
• 26/1370 Granted

  45 Holmstall Avenue, Edgware, HA8 5JQ

  Certificate of lawfulness for proposed use of dwellinghouse as a childrens' residential home

  1 Jun 2026 Lawful development
• 26/1260 Granted

  18 Hartland Road, London, NW6 6BJ

  Certificate of lawfulness for proposed air source heat pump to rear of dwellinghouse

  18 May 2026 Lawful development
• 26/1901 Awaiting decision

  176 Bridgewater Road, Wembley, HA0 1AR

  Certificate of lawfulness for proposed single-storey rear extension, rear dromer extension and 2x front rooflights to dwellinghouse.

  26 Jul 2026 Lawful development
• 26/1353 Granted

  4 Hardinge Road, London, NW10 3PJ

  Certificate of lawfulness for proposed conversion of existing garage into a habitable room with replacement of garage door with window to side elevation and removal of ground floor side window of the dwellinghouse

  29 May 2026 Lawful development