24 Western Avenue London NW11 9HJ

1. 5 Dec 2025

   Received by Barnet

2. 8 Dec 2025

   Validated

   Checked as complete and ready for consideration.

3. 12 Jan 2026

   Decision issued: Prior Approval Not Required

4. 10 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

Prior approval applications arise where permitted development rights already grant the principle of the work, such as larger home extensions, changes of use to housing or agricultural buildings. The council may only consider the specific matters set out in the rules, for example transport, flooding or appearance, and in many classes the work may proceed if the council does not respond within the deadline, commonly 56 days.

More on prior approval applications in our guide

• 24 Western Avenue London NW11 9HJ

  26/1425/PNH Submitted 17 Apr 2026 0m 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

• 24 Western Avenue London NW11 9HJ

  26/1996/HSE Submitted 28 May 2026 1m away

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

  Granted Householder Extension 5 docs
  Small domestic

• 24 Western Avenue London NW11 9HJ

  26/0257/HSE Submitted 22 Jan 2026 2m away

  77% historically approved · decision due ~26 Mar

  Part single, part two storey rear extension

  Awaiting decision Householder Extension 3 docs
  Domestic

• 24 Heathfield Gardens London NW11 9HX

  25/5094/PNH Submitted 18 Dec 2025 25m 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

  25/5093/192 Submitted 18 Dec 2025 25m away

  79% historically approved · decision due ~12 Feb

  Roof extension involving hip to gable, rear dormer window. Front porch extension (AMENDED DESCRIPTION)

  Awaiting decision Lawful development Extension Loft or dormer +1 3 docs
  Small domestic

• 24 Heathfield Gardens London NW11 9HX

  25/5095/HSE Submitted 18 Dec 2025 25m 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

• 26/3224/PNH Awaiting decision

  Low Ridge Rowley Lane Barnet EN5 3HS

  Single storey rear extension with a proposed depth of 8.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres.

  3 Sep 2026 Prior approval
• 26/3218/PNH Awaiting decision

  22 Highcroft Gardens London NW11 0LX

  2no. Single storey rear extensions with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres, and depth of 3.05 metres, maximum height of 3.00 metres and eaves height of 3.00 metres respectively, following demolition of existing roofed patio.

  2 Sep 2026 Prior approval
• 26/3212/PNH Awaiting decision

  10 Richmond Road Barnet EN5 1SB

  Single storey rear extension with a proposed depth of 5.54 metres, maximum height of 3.50 metres and eaves height of 3.00 metres.

  2 Sep 2026 Prior approval
• 26/3183/PNH Awaiting decision

  34 Selvage Lane London NW7 3SP

  Single storey rear extension with a proposed depth of 3.80 metres, maximum height of 3.00 metres and eaves height of 2.75 metres, following partial demolition of existing side manifestation.

  1 Sep 2026 Prior approval
• 26/3194/PNH Awaiting decision

  74 Windsor Drive Barnet EN4 8UD

  Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 2.60 metres, following demolition of the existing rear extension.

  31 Aug 2026 Prior approval