26/1724/192

1. 8 May 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

• 26/1097/HSE Awaiting decision

  32 St James Close London N20 0NS

  Single storey rear extension with 2no. rooflights with new veranda, patio area and access steps into garden

  23 Mar 2026 141m away Householder
• 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 141m 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 216m away Householder
• 26/0909/HSE Awaiting decision

  49 Manor Drive London N20 0DT

  Part single, part two storey side and rear extension. Roof extension including 1no. rear dormer window

  10 Mar 2026 218m 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 232m away Householder
• TPP/0147/26 Granted

  152 Friern Barnet Lane London N20 0NL

  1 x Oak (applicants ref. T1) - Reduce crown by 2-2.5m on all aspects (back to previous cuts, max dia cut 7cm). Standing in T19 of Tree Preservation Order. 1 x Lime (applicants ref. T2) - Reduce height down to the main fork in the trunk (approx 8m height reduction) and reduce lateral branches by 3m to maintain proportion. Standing in T18 of Tree Preservation Order.

  13 Mar 2026 285m 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