20/3447

1. 26 Oct 2020

   Received by Brent

2. 4 Nov 2020

   Validated

   Checked as complete and ready for consideration.

3. 18 Nov 2020

   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

• 26/0614 Granted

  224 Preston Hill, Harrow, HA3 9UJ

  Proposed alteration to the existing rear extension, alteration to the fenestration, internal layout alteration, and part re-render to the dwellinghouse.

  11 Mar 2026 0m away Householder
• 20/3747 Granted

  224 Preston Hill, Harrow, HA3 9UJ

  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 - 3m

  16 Nov 2020 0m away Prior approval
• 20/4255 Withdrawn

  224 Preston Hill, Harrow, HA3 9UJ

  Proposed first floor rear extension; demolition of existing side and rear dormers, alterations to roof of existing rear extension; hip to gable roof extension with rear dormer and installation of front facing rooflights to dwellinghouse

  23 Dec 2020 0m away Householder
• 20/3916 Refused

  214 Preston Hill, Harrow, HA3 9UJ

  Certificate of lawfulness for proposed change of use from dwellinghouse (Use class C3) to 6 bedroom/6 person house in multiple occupancy (Use Class C4); internal alterations to provide 4 additional bathrooms

  30 Nov 2020 0m away Lawful development
• 24/1623 Granted

  9 Shaftesbury Avenue, Harrow, HA3 0QT

  Demolition of existing shed and proposed erection of 2x rear outbuildings and timber pergola, replacement of front door and front canopy, alterations to side and rear fenestrations, installation of 3x new rooflights to single-storey rear extension, side dormer extension and installation of 1x side and 2x rear rooflights to dwellinghouse

  12 Jun 2024 84m away Full applications
• 26/0949 Refused

  342 Preston Road, Harrow, HA3 0QJ

  Proposed change of use from single-family dwellinghouse to 8-bedroom/10-person House in Multiple Occupation (HMO)

  15 Apr 2026 92m away Full applications

• 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