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Planning application

26/0556

19 Chalfont Avenue, Wembley, HA9 6NW

Granted Brent Certificate of Lawfulness - Proposed

Proposal

Certificate of lawfulness for proposed hip to gable roof extension, rear dormer extension and 2x front rooflights to the dwellinghouse.

As published by the council, reference 26/0556

Timeline

Dates from the published record

  1. 4 Mar 2026

    Received by Brent

  2. 28 Apr 2026

    Decision issued: Certificate of Lawfulness - Granted

  3. 25 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

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.

About lawful development applications

How this application type works

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

Nearby applications

Within 500 metres

  • 20/2373 Refused

    4 Chalfont Avenue, Wembley, HA9 6NS

    Proposed first-floor side extension to dwellinghouse

    6 Aug 2020 69m away Householder
  • 22/3709 Refused

    51 Wyld Way, Wembley, HA9 6PP

    Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3.1m Eaves height - 3.1m

    31 Oct 2022 94m away Prior approval
  • 22/3708 Granted

    51 Wyld Way, Wembley, HA9 6PP

    Certificate of lawfulness for proposed hip to gable-end roof extension and rear dormer with 3x front rooflights to dwellinghouse.

    31 Oct 2022 94m away Lawful development
  • 24/2314 Granted

    153 Vivian Avenue, Wembley, HA9 6RN

    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

    19 Aug 2024 113m away Prior approval
  • 26/1030 Granted

    61 Monks Park, Wembley, HA9 6JF

    Proposed change of use of dwellinghouse (Use Class C3) to small House in Multiple Occupation (Use Class C4) for up to six occupants, including internal reconfiguration, retention of two-storey rear extension and rear dormer with 3x front rooflights, removal of rear canopy, reduction of pitched roof to first-floor rear extension, alterations to existing outbuilding, provision of refuse & cycle storage with associated landscaping in front & rear gardens

    24 Apr 2026 122m away Full applications
  • 20/2349 Refused

    136 Vivian Avenue, Wembley, HA9 6RS

    Certificate of lawfulness for proposed single storey outbuilding in the rear garden of dwellinghouse

    4 Aug 2020 123m away Lawful development

In Brent

  • 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