35 Orchard Avenue London N3 3NL

1. 1 Oct 2025

   Received by Barnet

2. 10 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 26 November 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Barnet took a median of 42 days over the applications it decided in the last year.

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

• 35 Orchard Avenue London N3 3NL

  26/0433/192 Submitted 5 Feb 2026 0m away

  79% historically approved · decision due ~2 Apr

  Roof extension involving hip to gable, rear dormer window, 1no. rear and 2no. front facing rooflights and new side gable window

  Awaiting decision Lawful development Extension Loft or dormer +1 7 docs

• 35 Orchard Avenue London N3 3NL

  26/0434/HSE Submitted 4 Feb 2026 0m away

  77% historically approved · decision due ~2 Apr

  Single storey side and rear extension with 1no. rooflight and extension of the existing raised patio and associated balustrade and rear access steps following demolition of the existing garage and extension

  Awaiting decision Householder Extension Loft or dormer +1 7 docs
  Small domestic

• 44 Mountfield Road London N3 3NP

  26/1359/HSE Submitted 14 Apr 2026 84m away

  77% historically approved · decision due ~9 Jun

  Existing rear extension parapet to be raised and capped with concrete coping stones. Green roof to new flat roof and addition of sliding doors and window to rear. Changes to side fenestration

  Awaiting decision Householder Extension Windows or glazing 16 docs
  Domestic

• 7 - 9 Holly Park Gardens London N3 3NG

  26/1357/CON Submitted 13 Apr 2026 132m away

  Submission of details of condition 4 (Materials) pursuant to planning permission 19/5642/FUL dated 17/12/2019

  Granted Conditions 12 docs

• 24 Mountfield Road London N3 3NE

  26/0420/192 Submitted 4 Feb 2026 133m away

  79% historically approved · decision due ~1 Apr

  Roof extension involving rear dormer window and 1no. rooflight

  Awaiting decision Lawful development Extension Loft or dormer +1 16 docs

• 24 Mountfield Road London N3 3NE

  26/0404/HSE Submitted 3 Feb 2026 133m away

  77% historically approved · decision due ~31 Mar

  Single storey side and rear extension wrap-around extension with 5no. rooflights

  Awaiting decision Householder Extension Loft or dormer 20 docs
  Small domestic

• 26/1907/191 Decided

  8 Golders Manor Drive London NW11 9HT

  Use of the property as a self-contained residential unit at ground floor level and the first and second floors as a 4-bedroom, 4-person House in Multiple Occupation (Sui Generis) (AMENDED DESCRIPTION)

  21 May 2026 Lawful development
• 26/2059/192 Decided

  Low Ridge Rowley Lane Barnet EN5 3HS

  Erection of a rear outbuilding

  3 Jun 2026 Lawful development
• 26/2066/192 Decided

  355 Hendon Way London NW4 3NB

  Roof extension involving rear dormer window and 3no. front facing rooflights. Removal of chimney on rear elevation (AMENDED DESCRIPTION)

  3 Jun 2026 Lawful development
• 26/1663/192 Decided

  152 Deans Lane Edgware HA8 9NT

  Change of use from single family dwellinghouse (Class C3a) to supported living accommodation Class C3b)

  5 May 2026 Lawful development
• 26/2025/192 Decided

  18 Hale Drive London NW7 3DU

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

  1 Jun 2026 Lawful development