26/2186/192

1. 11 Jun 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

• 26/1389/192 Decided

  65 Oakleigh Avenue London N20 9JG

  Erection of a rear outbuilding

  16 Apr 2026 30m away Lawful development
• TPP/0273/26 Awaiting decision

  42 Oakleigh Park North London N20 9AR

  3 x Pine - Reduce the overhang to the drive by 2.0m back to growth points. Reduce the overhang to the neigbours drive by 2.0m back to growth points. Standing in Group G49 of Tree Preservation Order.

  13 May 2026 68m away Trees
• TPP/0151/26 Split decision

  4 Applewood Close London N20 9JW

  1 x Horse Chestnut (applicants ref. T1) - Fell to fence height. Standing in Area A2 of Tree Preservation Order. 1 x Prunus (applicants ref. T2) - Fell. Standing in Area A2 of Tree Preservation Order. 1 x Ash (applicants ref. T3) - Fell. Standing in Area A2 of Tree Preservation Order. 1 x Buxas (applicants ref. T4) - Reduce by 10% and trimmed to a nice shape. Standing in Area A2 of Tree Preservation Order. Conifer Group (applicants ref. G1) - Reduce height by 30% to maintain a healthy size. Standing in Area A2 of Tree Preservation Order.

  16 Mar 2026 111m away Trees
• 26/1297/HSE Awaiting decision

  40 Oakleigh Avenue London N20 9JJ

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

  7 Apr 2026 139m away Householder
• 26/1442/CON Granted

  65 - 67 Oakleigh Park South London N20 9JL

  Submission of details of condition 7 (Hard and Soft Landscaping) and 9 (Capital Asset Value for Amenity Trees (CAVAT)) pursuant to planning permission 23/5241/FUL dated 20/02/2024

  20 Apr 2026 209m away Conditions
• TPP/0361/26 Awaiting decision

  70 Oakleigh Park North London N20 9AS

  1 x Cedar - Reduce crown by 1.5-2 metres, reducing the crown to suitable growth points whilst retaining the trees natural form. Reduce the lateral spread by approximately 1-1.5 metres, pruning back to appropriate secondary growth points to produce a balanced and sympathetic crown. Remove all deadwood throughout the crown by pruning back to the main stem or suitable parent limbs where appropriate. Standing in T41 of Tree Preservation Order.

  25 Jun 2026 212m 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