20/3830

1. 23 Nov 2020

   Received by Brent

2. 30 Dec 2020

   Decision issued: Certificate of Lawfulness - Refused

3. 25 Jul 2026

   Added to PlanIndex

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

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

• 20/2886 Refused

  21 Valley Drive, London, NW9 9NJ

  Certificate of lawfulness for proposed single storey outbuilding with rooflights in rear garden of dwellinghouse.

  15 Sep 2020 0m away Lawful development
• 26/1010 Granted

  28 Valley Drive, London, NW9 9NP

  Certificate of lawfulness for proposed single-storey outbuilding in rear garden of dwellinghouse.

  23 Apr 2026 87m away Lawful development
• 26/1779 Awaiting decision

  28 Valley Drive, London, NW9 9NP

  Demolition of garage and erection of two-storey side to rear extension, conversion of garage into habitable room, replacement of garage door with front window, front extension, hip to gable-end roof extension, rear dormer with Juliet balcony, installation of 3x front rooflights and removal of chimney-stack to dwellinghouse.

  10 Jul 2026 87m away Householder
• 26/1085 Granted

  28 Valley Drive, London, NW9 9NP

  Certificate of lawfulness for proposed rear dormer extension with 1x juliet balcony, hip to gable roof extension, 3x front rooflights and removal of 1x chimney stack to the dwellinghouse.

  29 Apr 2026 87m away Lawful development
• 26/1086 Granted

  28 Valley Drive, London, NW9 9NP

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6.00m Maximum height - 3.00m Eaves height - 3.00m

  29 Apr 2026 87m away Prior approval
• 20/3360 Granted

  38 Mersham Drive, London, NW9 9PN

  Retrospective planning application for the retention of converted garage into habitable room with single-storey front extension to dwellinghouse

  16 Oct 2020 124m 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