26/1574/192

1. 27 Apr 2026

   Received by Barnet

2. 25 Jul 2026

   Added to PlanIndex

3. 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

• 26/2022/HSE Awaiting decision

  9 Summers Row London N12 0LD

  Single storey rear extension with 2no. rooflights, following demolition of the existing conservatory

  1 Jun 2026 0m away Householder
• 26/0884/CON Granted

  The Triumph Summers Lane London N12 0LE

  Submission of details of condition 7 (Noise Mitigation) pursuant to planning permission 25/5171/PNE dated 18/02/2026

  9 Mar 2026 73m away Conditions
• 26/2309/192 Awaiting decision

  159 Woodhouse Road London N12 9NN

  Roof extension involving rear dormer window and 3no. front facing rooflights. Removal of the existing chimney stack

  18 Jun 2026 140m away Lawful development
• 26/2290/192 Awaiting decision

  61 Petworth Road London N12 9HE

  Roof extension involving rear dormer window with juliette balcony, 2no. front facing rooflights and new side gable window. Erection of a rear outbuilding following removal of existing

  18 Jun 2026 328m away Lawful development
• 26/1061/HSE Awaiting decision

  125 Summers Lane London N12 0QE

  Single storey side and rear extension. First floor rear dormer and outrigger extension

  19 Mar 2026 363m away Householder
• 26/1552/FUL Awaiting decision

  25 Queens Parade Friern Barnet Road London N11 3DA

  Subdivision of dwelling into 2no. self-contained flats. Associated refuse/recycling and cycle storage

  27 Apr 2026 377m away Full applications

• 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