24 Heathfield Gardens London NW11 9HX

1. 18 Dec 2025

   Received by Barnet

2. 10 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 12 February 2026, 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

• 24 Heathfield Gardens London NW11 9HX

  25/5094/PNH Submitted 18 Dec 2025 0m away

  57% historically approved · decision due ~12 Feb

  2no. single-storey rear extensions with a maximum proposed depth of 6.0m, maximum height of 3.0m and an eaves height of 3.0m

  Awaiting decision Prior approval Extension 3 docs
  Small domestic

• 24 Heathfield Gardens London NW11 9HX

  25/5095/HSE Submitted 18 Dec 2025 0m away

  77% historically approved · decision due ~12 Feb

  Part single, part two storey rear extension. Single storey front porch extension

  Awaiting decision Householder Extension 5 docs
  Small domestic

• 24 Heathfield Gardens London NW11 9HX

  26/1288/HSE Submitted 7 Apr 2026 0m away

  77% historically approved · decision due ~2 Jun

  Part single, part two storey rear extension. Single storey front porch extension

  Awaiting decision Householder Extension 4 docs
  Small domestic

• 24 Heathfield Gardens London NW11 9HX

  26/0345/PNH Submitted 29 Jan 2026 1m away

  57% historically approved · decision due ~26 Mar

  2no. single-storey rear extensions with maximum depths of 6.0m, maximum heights of 3.0m and maximum eaves heights of 3.0m

  Awaiting decision Prior approval Extension 3 docs
  Small domestic

• 24 Western Avenue London NW11 9HJ

  26/1996/HSE Submitted 28 May 2026 24m away

  Single storey rear extension. First floor rear extension (AMENDED DESCRIPTION)

  Granted Householder Extension 5 docs
  Small domestic

• 24 Western Avenue London NW11 9HJ

  26/1425/PNH Submitted 17 Apr 2026 25m away

  57% historically approved · decision due ~19 Jun

  Single storey rear extension with a proposed depth of 5.00m, maximum height of 3.00m and an eaves height of 3.00m following the demolition of the existing outrigger

  Awaiting decision Prior approval Extension Demolition 2 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