26/1594/192

1. 28 Apr 2026

   Received by Barnet

2. 1 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 25 Jul 2026

   Added to PlanIndex

4. 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

• 26/2534/HSE Awaiting decision

  15 Haslemere Avenue London NW4 2PU

  Single storey front, side and rear extension with new patio area. Two storey side and rear extension with first floor juliette balcony with glass balustrade

  6 Jul 2026 22m away Householder
• 26/1092/HSE Granted

  31 Haslemere Avenue London NW4 2PU

  Single storey front and side extension and part single, part two storey rear extension

  23 Mar 2026 81m away Householder
• 26/0834/FUL Awaiting decision

  2A Western Avenue London NW11 9HH

  Demolition of existing dwelling and erection of a part single, part two storey building to provide 3no. self-contained flats. Associated refuse/recycling store, cycle storage and provision of 2no off street parking spaces

  5 Mar 2026 200m away Full applications
• 26/2610/FUL Awaiting decision

  89 And 91 Renters Avenue London NW4 3RD

  Single storey rear extension to both properties

  13 Jul 2026 204m away Full applications
• 26/2620/FUL Awaiting decision

  89 And 91 Renters Avenue London NW4 3RD

  Two storey rear extension to both properties

  13 Jul 2026 204m away Full applications
• 26/2658/FUL Awaiting decision

  Land Adjacent To 91 Renters Avenue London NW4 3RD

  Erection of a 3 storey dwelling house with associated amenity space, off street parking, hard and soft landscaping and refuse/recycling and cycle storage

  16 Jul 2026 204m away Full applications

• 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