97 Brookside Barnet EN4 8TS

1. 19 Feb 2026

   Received by Barnet

2. 20 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Feb 2026

   Decision issued: Lawful

4. 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

• 97 Brookside Barnet EN4 8TS

  26/3145/HSE Submitted 26 Aug 2026 11m away

  77% historically approved · decision due ~21 Oct

  Single storey rear extension with mono-pitch roof with 2no. rooflights, excavation of new patio area with access steps to garden level and construction of new retaining walls (AMENDED DESCRIPTION).

  Awaiting decision Householder Extension Loft or dormer 5 docs
  Small domestic

• 52 Eton Avenue Barnet EN4 8TY

  26/2002/HSE Submitted 29 May 2026 103m away

  77% historically approved · decision due ~24 Jul

  Erection of a rear outbuilding

  Awaiting decision Householder 6 docs
  Small domestic

• 39 Ridgeway Avenue Barnet EN4 8TN

  26/2525/192 Submitted 6 Jul 2026 149m away

  79% historically approved · decision due ~31 Aug

  Single storey rear extension

  Awaiting decision Extension
  Small domestic

• 51 Ridgeway Avenue Barnet EN4 8TN

  26/3223/192 Submitted 3 Sep 2026 149m away

  79% historically approved · decision due ~29 Oct

  Single storey rear extension with flat rooflights and 2no. roof lanterns

  Awaiting decision Extension Loft or dormer
  Small domestic

• 51 Ridgeway Avenue Barnet EN4 8TN

  26/2396/192 Submitted 23 Jun 2026 149m away

  79% historically approved · decision due ~19 Aug

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

  Awaiting decision Extension Loft or dormer +1
  Small domestic

• 51 Ridgeway Avenue Barnet EN4 8TN

  26/2409/PNH Submitted 24 Jun 2026 149m away

  57% historically approved · decision due ~9 Sep

  Single storey rear extension with a proposed depth of 5.50m, maximum height of 3.50m and an eaves height of 3.00m

  Awaiting decision Prior approval Extension
  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