20/3866

1. 25 Nov 2020

   Received by Brent

2. 16 Dec 2020

   Validated

   Checked as complete and ready for consideration.

3. 24 Feb 2021

   Decision issued: Certificate of Lawfulness - Refused

4. 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

• 20/2319 Granted

  25 Greenhill Road, London, NW10 8UD

  Demolition of existing conservatory and detached extension, erection of single storey side to rear extension to dwellinghouse.

  3 Aug 2020 32m away Householder
• 26/1459 Awaiting decision

  110A & 110B Acton Lane, London, NW10 8TX

  Proposed replacement of existing timber framed door with inset glazing with new timber framed door with double glazed inset panel and fanlight and replacement of existing roof slates to flats

  10 Jun 2026 111m away Full applications
• 26/1849 Awaiting decision

  25B Greenhill Park, London, NW10 9AN

  Proposed rear dormer and rear outrigger extension with 3x front rooflights and installation of window to side outrigger for creation of new self-contained flat and cycle and refuse storages spaces.

  20 Jul 2026 123m away Full applications
• 26/1268 Refused

  25B Greenhill Park, London, NW10 9AN

  Proposed rear dormer and rear outrigger extension with 3x front rooflight and installation of window to side outrigger for creation of new self-contained flat, replacement of first floor side windows with 2x side windows and cycle and refuse storages spaces.

  19 May 2026 123m away Full applications
• 26/1249 Granted

  25A Greenhill Park, London, NW10 9AN

  Demolition of existing single storey rear addition, erection of proposed single-storey side infill-to-rear extension, soft landscaping, front and rear cycle storage, front bin storage to ground floor flat

  18 May 2026 123m away Full applications
• 22/3667 Granted

  31 Greenhill Park, London, NW10 9AN

  Proposed demolition and replacement of existing single storey rear and side extensions to dwellinghouse

  25 Oct 2022 123m 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