26/1571/191

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

• 26/0819/192 Awaiting decision

  10 Alexandra Road London NW4 2SA

  Roof extension with rear dormer and outrigger dormer, and 2no. front facing rooflights

  4 Mar 2026 54m away Lawful development
• 26/0823/PNH Awaiting decision

  10 Alexandra Road London NW4 2SA

  a single storey rear extension with a proposed maximum depth of 6.0m, a maximum height of 3.0m and an eaves height of 3.0m

  4 Mar 2026 54m away Prior approval
• 26/0940/192 Decided

  5 Holmfield Avenue London NW4 2LP

  Roof extension involving hip to gable, rear dormer window and 2no. front facing rooflights

  12 Mar 2026 215m away Lawful development
• 26/1671/192 Awaiting decision

  37 Hillview Gardens London NW4 2JJ

  Roof extension involving rear dormer window and 1no. front facing rooflight

  5 May 2026 226m away Lawful development
• 26/2291/HSE Awaiting decision

  41 Alexandra Road London NW4 2RX

  Single storey rear extension with 2no. rooflights. New side entrance porch with 1no. rooflight

  18 Jun 2026 236m away Householder
• 26/0919/192 Decided

  10 Boyne Avenue London NW4 2JN

  Roof extension involving hip to gable, rear dormer window, 2no. front facing rooflights and new side gable window

  11 Mar 2026 238m 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