20/3575

1. 4 Nov 2020

   Received by Brent

2. 18 Nov 2020

   Validated

   Checked as complete and ready for consideration.

3. 13 Jan 2021

   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

• 20/2454 Granted

  15 Sonia Gardens, London, NW10 1AG

  Proposed first floor side extension, to include new window to first floor rear elevation and double hip to gable end roof extension with addition of rear dormer and installation of 2 rooflights to the front roof slope of dwellinghouse.

  12 Aug 2020 0m away Householder
• 20/3200 Granted

  17 Sonia Gardens, London, NW10 1AG

  Certificate of lawfulness for existing demolition of existing shed, side and rear extensions; erection of single storey rear extension, hip to gable loft conversion with rear dormer window and insertion of two front rooflights to dwellinghouse.

  6 Oct 2020 0m away Lawful development
• 20/3113 Refused

  27 Sonia Gardens, London, NW10 1AG

  Non-material amendment (side extension reduction and fenestration to rear extension) of Householder reference 17/3951 dated 20 December, 2017, for Proposed single storey side extension, and single storey rear extension, conversion of garage to a habitable room and associated alterations including the replacement of garage doors with new windows to front elevation of the dwellinghouse

  30 Sep 2020 0m away Amendments
• 20/3604 Granted

  27 Sonia Gardens, London, NW10 1AG

  Varaiation of condition 2, development built in accordance with approved plans to allow minor-material amendment (layout of the consented internal spaces resulting in a smaller proposed extension) of Householder reference 17/3951 dated 20 December, 2017, for Proposed single storey side extension, and single storey rear extension, conversion of garage to a habitable room and associated alterations including the replacement of garage doors with new windows to front elevation of the dwellinghouse

  6 Nov 2020 0m away Amendments
• 20/2265 Granted

  17 Sonia Gardens, London, NW10 1AG

  Retention of single storey side extension and garage extension to dwellinghouse

  29 Jul 2020 0m away Householder
• 20/4005 Granted

  7 Sonia Gardens, London, NW10 1AG

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 5m Maximum height - 4m Eaves height - 3.92m

  3 Dec 2020 0m 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 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