26/1143/191

1. 25 Mar 2026

   Received by Barnet

2. 26 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 23 Apr 2026

   Decision issued: Unlawful

4. 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

• 26/0827/HSE Awaiting decision

  118 Friern Park London N12 9LN

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

  4 Mar 2026 243m away Householder
• 26/1302/FUL Refused

  Westwood Lodge Torrington Grove London N12 9NP

  Additional storey at third floor level with associated flat roof to provide 2no. self-contained flats. Extension of the existing hardstanding area to create 2no. additional parking spaces with vehicular charging points. Associated cycle parking storage

  8 Apr 2026 305m away Full applications
• 26/1527/FUL Awaiting decision

  47 Glenhurst Road London N12 9UB

  New front vehicular access and hardstanding to provide off-street parking

  23 Apr 2026 315m away Full applications
• 26/1361/HSE Awaiting decision

  71 Ravensdale Avenue London N12 9HR

  Two storey front/side extension

  14 Apr 2026 345m 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 464m away Trees
• 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 483m 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