14 Millson Close London N20 0LQ

1. 11 Sep 2025

   Received by Barnet

2. 10 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 6 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

• 7 Millson Close London N20 0LQ

  26/0995/192 Submitted 16 Mar 2026 42m away

  79% historically approved · decision due ~11 May

  Roof extension involving rear dormer window and new side gable window

  Awaiting decision Lawful development Extension Loft or dormer +1 8 docs

• 6 Orchard Avenue London N20 0JA

  26/2596/HSE Submitted 10 Jul 2026 94m away

  77% historically approved · decision due ~8 Sep

  Single storey rear extension with 2no. rooflights following demolition of the existing conservatory

  Awaiting decision Householder Extension Loft or dormer +1
  Small domestic

• 6 Orchard Avenue London N20 0JA

  26/2051/PNH Submitted 2 Jun 2026 99m away

  Single storey rear extension with a proposed depth of 4.50m, maximum height 3.20m and an eaves height of 3.00m following the demolition of the existing conservatory

  Refused Prior approval Extension Demolition 7 docs
  Small domestic

• 123 Sweets Way London N20 0ET

  26/0269/HSE Submitted 23 Jan 2026 129m away

  77% historically approved · decision due ~23 Mar

  Conversion of the existing garage into habitable room, insertion of window to replace the garage door and insertion of door to the rear

  Awaiting decision Householder Windows or glazing 8 docs
  Domestic

• 121 Sweets Way London N20 0ET

  26/0167/HSE Submitted 16 Jan 2026 137m away

  77% historically approved · decision due ~13 Mar

  Conversion of the existing garage into habitable room, insertion of windows to replace doors

  Awaiting decision Householder Windows or glazing 3 docs
  Domestic

• 36 Lovegrove Way London N20 0EU

  26/0950/HSE Submitted 12 Mar 2026 154m away

  Single storey rear extension with 1no. rooflight

  Granted Householder Extension Loft or dormer 5 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