20/4268

1. 23 Dec 2020

   Received by Brent

2. 7 Jan 2021

   Validated

   Checked as complete and ready for consideration.

3. 4 Mar 2021

   Decision issued: Certificate of Lawfulness - Granted

4. 2 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

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

• 24/2030 Granted

  119 Sudbury Court Drive, Harrow, HA1 3SS

  Proposed demolition of existing rear extension and erection of single storey side to rear wraparound extension, first floor side extension and conversion of garage into habitable room and replacement of garage door into window to the front elevation of the dwellinghouse.

  22 Jul 2024 0m away Householder
• 26/0997 Granted

  81 Sudbury Court Drive, Harrow, HA1 3SS

  Proposed conversion of garage into a habitable room and replacing garage door with a window to dwellinghouse.

  22 Apr 2026 0m away Householder
• 20/4294 Granted

  131 Sudbury Court Drive, Harrow, HA1 3SS

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 8m Maximum height - 3.48m Eaves height - 2.66m

  23 Dec 2020 0m away Prior approval
• 20/2450 Refused

  100 Sudbury Court Drive, Harrow, HA1 3TF

  Certificate of lawfulness for existing extension to single storey outbuilding in rear garden of dwellinghouse

  12 Aug 2020 71m away Lawful development
• 20/2968 Granted

  100 Sudbury Court Drive, Harrow, HA1 3TF

  Retrospective planning permission for erection of single storey rear extension to dwellinghouse.

  21 Sep 2020 71m away Householder
• 20/2148 Refused

  100 Sudbury Court Drive, Harrow, HA1 3TF

  Non material amendment (Change of conservatory roof from glazed to tiled roof ) of Householder application reference 16/0640 dated 17/05/2016 for the erection of a single storey conservatory to rear of dwellinghouse

  20 Jul 2020 71m away Amendments

• 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