26/0915/192

1. 10 Mar 2026

   Received by Barnet

2. 29 Apr 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

• 26/1206/HSE Awaiting decision

  35 Bethune Avenue London N11 3LD

  Part single, part two storey side and rear extensions following demolition of the existing garage. Single storey front porch extension. Roof extension involving hip to gable, rear dormer window, 2no. front facing rooflights and new side gable window

  30 Mar 2026 84m away Householder
• 26/1294/HSE Awaiting decision

  91 Manor Drive London N20 0XD

  Single storey rear extension with 4no. rooflights following demolition of the existing bay window (AMENDED DESCRIPTION)

  7 Apr 2026 327m away Householder
• 26/1245/PNH Refused

  20 The Crescent London N11 3HN

  Single storey rear extension with a proposed depth of 4.24 metres, maximum height of 3.37 metres and eaves height of 2.70 metres

  1 Apr 2026 352m away Prior approval
• 26/2140/192 Awaiting decision

  8 Balfour Grove London N20 0SJ

  Single storey side extension. Roof extension involving 1no. rear dormer window over main roof and 1no. rear dormer over outrigger roof and 2no. front facing rooflights

  9 Jun 2026 358m away Lawful development
• 26/2792/HSE Awaiting decision

  11A Friars Avenue London N20 0XE

  Conversion of the existing garage into habitable room and incorporation into the main dwelling, including replacement of the garage door with arched window and associated alterations to the side and rear elevations

  29 Jul 2026 456m away Householder
• 26/1020/HSE Granted

  59 Manor Drive London N20 0DT

  Single storey side extension following demolition of the existing garage

  17 Mar 2026 460m away Householder

• 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