12 Margaret Road Barnet EN4 9NP

1. 21 Aug 2025

   Received by Barnet

2. 13 Oct 2025

   Decision issued: Lawful

3. 10 Aug 2026

   Added to PlanIndex

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

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

• 99 East Barnet Road Barnet EN4 8RF

  25/4088/CON Submitted 10 Oct 2025 55m away

  Submission of details of Condition 6 (Drainage Strategy) pursuant to planning permission 24/3827/FUL dated 17/01/2025

  Granted Conditions 10 docs

• 99 East Barnet Road Barnet EN4 8RF

  25/3501/CON Submitted 26 Aug 2025 55m away

  Submission of details of condition 9 (Disabled Access) pursuant to planning permission 24/3827/FUL dated 17/01/2025

  Granted Conditions 6 docs

• 99 East Barnet Road Barnet EN4 8RF

  25/3503/CON Submitted 26 Aug 2025 58m away

  Submission of details of Condition 4 (Levels) pursuant to planning permission 24/3827/FUL dated 17/01/2025

  Granted Conditions 14 docs

• Land Rear Of 23 Margaret Road/Mulberry Close Barnet EN4 9NP

  25/4690/FUL Submitted 24 Nov 2025 67m away

  61% historically approved · decision due ~19 Jan

  Construction of a single storey Class E(g)(iii) workshop unit with 5no. rooflights. Provision for 1no. gated off street car parking space

  Awaiting decision Full applications Loft or dormer 16 docs
  Small domestic

• 132 East Barnet Road Barnet EN4 8RE

  26/2336/FUL Submitted 19 Jun 2026 103m away

  61% historically approved · decision due ~21 Aug

  Single storey rear extension to provide 1no. self-contained flat

  Awaiting decision Full applications Extension 12 docs
  Small domestic

• 38 Margaret Road Barnet EN4 9NT

  25/3979/FUL Submitted 1 Oct 2025 103m away

  61% historically approved · decision due ~26 Nov

  Change of use from a single dwellinghouse (Use Class C3) to a 9 bed HMO (House in Multiple Occupation) (Sui Generis) for 9 people including demolition of the rear conservatory, conversion of the existing garage into habitable room, insertion of window to replace the garage door, and creation of 2no. side window openings. Associated refuse and recycling and cycle storage

  Awaiting decision Full applications Extension Demolition +1 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