26/0990/192

1. 16 Mar 2026

   Received by Barnet

2. 13 Apr 2026

   Decision issued: Unlawful

3. 25 Jul 2026

   Added to PlanIndex

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

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

• 26/0994/HSE Granted

  71 Highview Avenue Edgware HA8 9TY

  2no. Single storey rear extensions and 1no. Front extension (AMENDED DESCRIPTION)

  16 Mar 2026 0m away Householder
• 26/1242/HSE Awaiting decision

  57 Priory Field Drive Edgware HA8 9PT

  Single storey side and rear extension with 3no. rooflights. Changes to front fenestration including replacement of garage doors with windows

  31 Mar 2026 128m away Householder
• 26/1332/PNH Refused

  31 Highview Avenue Edgware HA8 9TX

  Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.44 metres and eaves height of 3.00 metres, following the partial demolition the existing side/rear extension

  10 Apr 2026 177m away Prior approval
• 26/1333/192 Decided

  31 Highview Avenue Edgware HA8 9TX

  Roof extension involving rear dormer window and 2no. front facing rooflights. Erection of a rear outbuilding

  10 Apr 2026 178m away Lawful development
• 26/1999/HSE Awaiting decision

  31 Highview Avenue Edgware HA8 9TX

  Single storey front extension. Part single, part two storey side and rear extension with new patio area

  29 May 2026 178m away Householder
• TPP/0215/26 Awaiting decision

  Edgware Abbey 94A Priory Field Drive Edgware HA8 9PU

  2 x Oak (applicants ref. T11, T12) - Fell to near ground level and treat stump to inhibit regrowth. Standing in Area A1 of Tree Preservation Order.

  13 Apr 2026 192m away Trees

• 26/2836/192 Awaiting decision

  20 Derwent Avenue Barnet EN4 8LX

  Roof extension involving rear dormer window with juliette balcony

  31 Jul 2026 Lawful development
• 26/2815/192 Awaiting decision

  18 Boyne Avenue London NW4 2JN

  Roof extension involving rear dormer window and 2no. front facing rooflights

  30 Jul 2026 Lawful development
• 26/2824/192 Awaiting decision

  41 Greenway Close London N20 8ES

  Erection of a rear outbuilding

  30 Jul 2026 Lawful development
• 26/2809/192 Awaiting decision

  43A Clifford Road Barnet EN5 5PD

  Single storey rear extension following the demolition of existing canopy

  29 Jul 2026 Lawful development
• 26/2806/192 Awaiting decision

  14 Lincoln Road London N2 9DL

  Roof extension involving 1no. rear dormer window over main roof with juliette balcony and 1no. rear dormer over outrigger roof and 3no. front facing rooflights. Alterations to existing lean-to to form rear extension with flat roof with parapet walls and 1no. skylight. Alterations to fenestration and doors

  29 Jul 2026 Lawful development