21/0080

1. 8 Jan 2021

   Received by Brent

2. 5 Mar 2021

   Decision issued: Certificate of Lawfulness - Granted

3. 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

• 21/0438 Refused

  150 The Mall, Harrow, HA3 9TH

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3m Eaves height - 2.75m

  7 Feb 2021 0m away Prior approval
• 20/3949 Granted

  148 The Mall, Harrow, HA3 9TH

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3.2m Eaves height - 2.99m

  1 Dec 2020 0m away Prior approval
• 20/3078 Refused

  4 The Garth, Harrow, HA3 9TQ

  Proposed erection of part two storey part single storey side extension, single storey rear extension, single storey front extension and new front porch with double entrance doors, loft conversion with rear dormer and juliet balcony, replacement fenestration at first floor level to the rear to include juliet balcony to dwellinghouse

  28 Sep 2020 111m away Householder
• 20/4188 Refused

  55A Dorchester Way, Harrow, HA3 9RQ

  Certificate of lawfulness for the existing hip to gable-end roof extension and rear dormer to dwellinghouse

  17 Dec 2020 152m away Lawful development
• 26/1042 Awaiting decision

  198 The Mall, Harrow, HA3 9TT

  Proposed dropped kerb for vehicular access to the ground floor flat.

  27 Apr 2026 179m away Full applications
• 20/2617 Granted

  32 Shakespeare Drive, Harrow, HA3 9TW

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3m Eaves height - 3m

  24 Aug 2020 185m 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