20/4277

1. 24 Dec 2020

   Received by Brent

2. 26 Jan 2021

   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

• 20/2488 Granted

  8 Highfield Avenue, London, NW9 0PA

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3m Eaves height - 2.7m

  14 Aug 2020 77m away Prior approval
• 20/2735 Granted

  8 Highfield Avenue, London, NW9 0PA

  Proposed hip to gable end roof extension with erection of rear dormer, removal of chimney, installation of 1 no. window to side elevation and 3 no. rooflights to front roof slope, erection of single storey side and rear extension to include conversion of garage to habitable room with replacement garage door with window and erection of new front porch to dwellinghouse

  4 Sep 2020 77m away Householder
• 20/2388 Granted

  5 Highfield Avenue, London, NW9 0PD

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3m Eaves height - 2.90m

  7 Aug 2020 95m away Prior approval
• 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 119m away Lawful development
• 26/1466 Refused

  8 Roe Green, London, NW9 0NY

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3m Eaves height - 2.7m

  10 Jun 2026 119m away Prior approval
• 20/1258 Granted

  25 Ash Tree Dell, London, NW9 0AG

  Proposed dropped kerb for a vehicular crossover to create an off-street car parking space, with associated hard and soft landscaping (including installation of dwarf boundary wall) to existing ground floor flat

  24 Apr 2020 134m away Householder

• 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