26/1828/192

1. 15 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

• 26/2769/HSE Awaiting decision

  41 Friern Mount Drive London N20 9DJ

  Two storey side and rear extensions following the demolition of existing front porch and garage. New front hardstanding and vehicular access to provide off-street parking with new hard and soft landscaping. Roof extension with 2no. rear dormer windows, juliette balcony with 4no. front, 3no. side facing and 4no. rooflights on main roof

  27 Jul 2026 226m away Householder
• 26/2298/192 Awaiting decision

  41 Friern Mount Drive London N20 9DJ

  Single storey side extension to existing outrigger

  18 Jun 2026 226m away Lawful development
• 26/1735/HSE Awaiting decision

  35 Buckingham Avenue London N20 9DG

  Single storey rear extension with new raised patio area with associated access steps and landscaping. Conversion of the existing garage into habitable room, insertion of window and door to replace the garage door. Roof extension involving rear dormer window and skylights. Replacement of existing windows. External wall insulation

  8 May 2026 286m away Householder
• 26/1175/HSE Refused

  45 Netherlands Road Barnet EN5 1BP

  Single storey rear extension with 2no. rooflights. Alterations to the existing patio area including new access steps

  27 Mar 2026 287m away Householder
• 26/0851/HSE Granted

  9 Temple Avenue London N20 9EJ

  Two storey side extension following demolition of existing single storey side projection. Single storey rear extension following demolition of existing conservatory. New raised patio and associated steps to garden. New front porch. Roof extension involving side and rear dormer windows, 1no. front facing rooflight and solar panels to side roof slope following demolition of 2no. chimneys to the rear

  6 Mar 2026 302m away Householder
• TPP/0329/26 Awaiting decision

  70 Chandos Avenue London N20 9DZ

  1 x Chilean Pine (applicants ref. T1) - Fell and grind out stump. Standing in Group G1 of Tree Preservation Order.

  9 Jun 2026 346m 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