26/1671/192

1. 5 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

• 26/1601/HSE Awaiting decision

  Three Gables Bungalow Boyne Avenue London NW4 2JL

  Single storey front extension including new porch. Single storey rear extensions with new patio area. Alterations to ground levels. Formation of first floor with new pitched gable roof with 2no. front and 2no. rear dormers and 2no. front facing, 2no side rooflights with associated hard and soft landscaping

  28 Apr 2026 55m away Householder
• 26/2816/PNH Awaiting decision

  18 Boyne Avenue London NW4 2JN

  2no. Single storey rear extensions with a maximum depth of 6.00m, maximum height of 3.90m and an eaves height 3.00m

  30 Jul 2026 86m away Prior approval
• 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 86m away Lawful development
• 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 88m away Lawful development
• 26/1133/FUL Awaiting decision

  114 Finchley Lane London NW4 1DG

  Single storey side and rear extension. Two storey side extension. New front bay window extension following removal of existing bay window. Alterations to front entrance

  25 Mar 2026 112m away Full applications
• 26/1950/HSE Awaiting decision

  104 Finchley Lane London NW4 1DG

  Single storey rear extension with 2no. rooflights

  26 May 2026 117m away Householder

• 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