20/2361

1. 5 Aug 2020

   Received by Brent

2. 26 Aug 2020

   Validated

   Checked as complete and ready for consideration.

3. 17 Sep 2020

   Decision issued: Certificate of Lawfulness - Refused

4. 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

• 20/2961 Granted

  12 Sycamore Grove, London, NW9 8RB

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 2.9m Eaves height - 2.9m

  21 Sep 2020 0m away Prior approval
• 26/0234 Awaiting decision

  31 Sycamore Grove, London, NW9 8RB

  Proposed conversion of dwellinghouse into 2x self-contained flats, alterations to front, side and rear elevations, installation of 1x front rooflight, refuse storage to front and cycle storage to the rear, alteration to front, side and rear landscaping and subdivision of rear garden

  2 Feb 2026 0m away Full applications
• 22/3753 Refused

  31 Sycamore Grove, London, NW9 8RB

  Demolition of existing rear patio and proposed single storey rear extension, rear raised patio, loft conversion with rear dormer window, removal of chimney stack and 3x front rooflights to dwellinghouse.

  1 Nov 2022 0m away Householder
• 22/3738 Refused

  31 Sycamore Grove, London, NW9 8RB

  Proposed demolition of existing rear extension and existing chimney stack and erection of single storey rear extension, rear raised patio, rear dormer window and three front rooflights to dwellinghouse

  31 Oct 2022 0m away Householder
• 20/2305 Granted

  43 Maple Grove, London, NW9 8RA

  Certificate of lawfulness for proposed loft conversion with rear dormer window and two front rooflights to dwellinhouse.

  31 Jul 2020 72m away Lawful development
• 20/3380 Granted

  6 Lyne Court, Church Lane, London, NW9 8LG

  Creation of a vehicular crossover with dropped kerb and associated hard and soft landscaping to ground floor flat

  20 Oct 2020 104m 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