26/1687/192

1. 6 May 2026

   Received by Barnet

2. 7 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 25 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

This application is with Barnet for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

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

• 26/1301/192 Awaiting decision

  72 Lynton Mead London N20 8DJ

  Roof extension involving hip to gable with rear dormer window, juliette balcony and 2no. front facing rooflights. New side gable window and removal of side chimneys (AMENDED DESCRIPTION)

  8 Apr 2026 1m away Lawful development
• 26/1203/PNH Granted

  72 Lynton Mead London N20 8DJ

  Single storey rear extension, following demolition of existing garage, with a maximum proposed depth of 6.0m, eaves height of 3.0m and a maximum height of 3.95m

  30 Mar 2026 5m away Prior approval
• 26/2112/192 Awaiting decision

  22 Lynton Mead London N20 8DJ

  Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights

  8 Jun 2026 66m away Lawful development
• 26/1576/HSE Awaiting decision

  51 Ventnor Drive London N20 8BU

  Single storey side/rear extension. Conversion of the existing garage into habitable room, insertion of window to replace garage door.

  27 Apr 2026 110m away Householder
• 26/1360/HSE Awaiting decision

  46 Southway London N20 8DB

  Single storey side and rear extension following the demolition of the existing garage and conservatory. New front dormer window

  14 Apr 2026 117m away Householder
• 26/0816/192 Awaiting decision

  46 Southway London N20 8DB

  Roof extension involving hip to gable with juliette balcony and 1no. front facing rooflights Conversion of the existing garage to habitable room insertion of window to replace the garage door

  4 Mar 2026 127m 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