21/0023

1. 5 Jan 2021

   Received by Brent

2. 2 Mar 2021

   Decision issued: Certificate of Lawfulness - Refused

3. 2 Aug 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

• 26/1693 Awaiting decision

  27 Rowdon Avenue, London, NW10 2AJ

  Proposed single storey side and rear extensions, first floor rear extension, loft conversion and rear dormer window with 6x rooflights, relocation of front door with alterations to the fenestration and removal of chimney stack to the dwellinghouse.

  3 Jul 2026 0m away Householder
• 20/2207 Refused

  12 Rowdon Avenue, London, NW10 2AL

  Conversion of garage to habitable room and extension of front porch; 1st floor side extension with rooflight.

  24 Jul 2020 41m away Householder
• 26/1570 Awaiting decision

  2 & 4 Bryan Avenue, London, NW10 2AR

  Proposed two-storey side extension, front garden landscaping with bike and bin storage to flats

  22 Jun 2026 114m away Full applications
• 26/1859 Awaiting decision

  53 Peter Avenue, London, NW10 2DD

  Proposed raised rear patio and alteration to rear and side fenestration to dwellinghouse

  21 Jul 2026 145m away Householder
• 20/3235 Granted

  21 Peter Avenue, London, NW10 2DD

  Certificate of lawfulness for proposed hip to gable loft conversion with rear dormer window and three front rooflights to dwellinghouse.

  8 Oct 2020 145m away Lawful development
• 26/0965 Awaiting decision

  15 Alexander Avenue, London, NW10 3QT

  Proposed part single part two-storey rear extension with 2x lantern rooflights and first floor Juliet balcony, rear basement extension, two-storey front extension, first floor front balcony and alterations to front bay windows, 2x hip to gable roof extensions, rear dormer extension with 3x Juliet balconies, replacement of roof tiles, 4x front rooflights, conversion of garage into store room, rendering to all elevations, brickwork to ground floor front elevation, alterations to fenestration, raised decking to rear, alteration to front boundary wall and hard and soft landscaping to front drive and rear garden of dwellinghouse.

  17 Apr 2026 157m 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