26/1145

1. 7 May 2026

   Received by Brent

2. 2 Jul 2026

   Decision issued: Certificate of Lawfulness - Refused

3. 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

• 26/0626 Refused

  44 Cairnfield Avenue, London, NW2 7PE

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 5.8m Maximum height - 3m Eaves height - 2.8m

  12 Mar 2026 0m away Prior approval
• 26/1815 Awaiting decision

  22 Cairnfield Avenue, London, NW2 7PE

  Certificate of lawfulness for existing use as 5 bedroom 5 person house in multiple occupation (HMO)

  15 Jul 2026 0m away Lawful development
• 26/0776 Granted

  44 Cairnfield Avenue, London, NW2 7PE

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 4.8m Maximum height - 3m Eaves height - 3m

  24 Mar 2026 0m away Prior approval
• 26/1634 Awaiting decision

  107 Cairnfield Avenue, London, NW2 7PH

  Proposed rear dormer extension, hip to gable roof extension and installation of 2x front rooflights to existing HMO.

  29 Jun 2026 43m away Full applications
• 26/1110 Awaiting decision

  55 Cairnfield Avenue, London, NW2 7PH

  Change of use from single dwellinghouse to 5-bed 5-person House in Multiple Occupation (HMO), to include bin and cycle storage to front forecourt.

  1 May 2026 43m away Full applications
• 26/0666 Withdrawn

  104 Kenwyn Drive, London, NW2 7NU

  Proposed conversion of single dwellinghouse into 6 bedroom 10 person house of multiple occupation (HMO) (retrospective).

  16 Mar 2026 91m 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