7 Thornton Road Barnet EN5 4JE

1. 5 Sep 2025

   Received by Barnet

2. 10 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 31 October 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 43 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

• 26 The Drive Barnet EN5 4JQ

  26/2837/HSE Submitted 31 Jul 2026 70m away

  77% historically approved · decision due ~25 Sep

  Single storey side and rear extension with 7no. rooflights and associated landscaping (AMENDED DESCRIPTION)

  Awaiting decision Householder Extension Loft or dormer
  Small domestic

• 3 The Drive Barnet EN5 4JG

  25/4559/HSE Submitted 14 Nov 2025 112m away

  Single storey side/rear infill extension with 3no. rooflights following demolition of the existing conservatory

  Granted Householder Extension Loft or dormer +1 6 docs
  Small domestic

• 88 Union Street Barnet EN5 4HZ

  26/0031/HSE Submitted 6 Jan 2026 126m away

  77% historically approved · decision due ~13 Mar

  Replacement of 2no. front sash windows with double glazed windows and replacement of the existing front door

  Awaiting decision Householder Windows or glazing 8 docs
  Domestic

• Wood Street, The Avenue, Union Street And Hillside Gardens Barnet EN5 4ND

  TCP/0300/26 Submitted 26 May 2026 139m away

  86% historically approved · decision due ~21 Jul

  Intallation of new 33KV power cable beneath Wood Street, The Avenue, Union Street And Hillside Gardens, Barnet, EN5

  Awaiting decision Trees 4 docs

• Coes Cottage Coe's Alley Barnet EN5 4HY

  26/0934/HSE Submitted 11 Mar 2026 152m away

  Single storey rear extension

  Granted Householder Extension 15 docs
  Small domestic

• 53A- D Salisbury Road Barnet EN5 4JW

  25/3484/FUL Submitted 22 Aug 2025 179m away

  Roof extension involving side gable. Re-rendering and blocking up of side elevation. New door to front elevation following demolition of existing store. Reinstate original pedestrian gate, form new vehicular access for construction works. Associated fence and amenity space (Amended Description)

  Granted Full applications Extension Demolition 6 docs
  Small domestic

• 26/2679/192 Decided

  21 Myddelton Park London N20 0JH

  Single storey rear extension and increase in ridge height of existing rear outrigger (Amended description).

  20 Jul 2026 Lawful development
• 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