26/1367/192

1. 14 Apr 2026

   Received by Barnet

2. 1 May 2026

   Decision issued: Lawful

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

• 26/1487/FUL Awaiting decision

  28A Great North Way London NW4 1HY

  Roof extension involving hip to gable, rear dormer window and 2no. front facing rooflights

  21 Apr 2026 11m away Full applications
• 26/1555/HSE Awaiting decision

  10 Great North Way London NW4 1HY

  Single storey rear extension with 1no. rooflight

  27 Apr 2026 73m away Householder
• 26/1710/PNH Awaiting decision

  10 Great North Way London NW4 1HY

  2no single storey rear extensions, both with a maximum proposed depth of 4.0m, maximum height of 3.3m and an eaves height of 3.0m

  7 May 2026 73m away Prior approval
• 26/1824/RCU Awaiting decision

  Flat 3 130 Sunny Gardens Road London NW4 1SE

  Roof extension involving hip to gable, rear dormer window (Retrospective Application)

  14 May 2026 100m away Amendments
• 26/1477/HSE Awaiting decision

  61 Downage London NW4 1HR

  Demolition of existing garage. Part single, part two storey front, side and rear extension with first floor rear juliette balcony. Alterations to existing two storey front bay window. Alterations and extensions to roof including 1no. rear dormer window and 2no. side dormer windows, rooflights to front, side and rear roofslopes and increase in height of existing front gable. Removal of chimney

  21 Apr 2026 201m away Householder
• 26/0916/192 Decided

  51 Sunningfields Road London NW4 4RA

  Alterations and extensions to the roof including wrap around side and rear dormer window with 2no. juliette balconies and 1no. side and front facing rooflight

  10 Mar 2026 391m away Lawful development

• 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