78 Russell Lane London N20 0AP

This site has had 2 applications since 2026.

• 26/3133/PNH Decided

  78 Russell Lane London N20 0AP

  2no. Single storey rear extension with a proposed depth of 7.00 metres, maximum height of 3.60 metres and eaves height of 3.00 metres. Following demolition of the existing side/rear outrigger. (Amended Description)

  Submitted 25 Aug 2026 Prior approval

1. 20 Oct 2026

   Received by Barnet

2. 22 Oct 2026

   Validated

   Checked as complete and ready for consideration.

3. 22 Oct 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 17 December 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 47 days over the applications it decided in the last year.

This application is with Barnet for determination, against a statutory target of eight weeks. Over the last year Barnet decided prior approval applications in a median of 36 days. More in our guide to how long planning decisions take.

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

• 78 Russell Lane London N20 0AP

  26/3133/PNH Submitted 25 Aug 2026 50 yards away

  56% historically approved · decision due ~20 Oct

  2no. Single storey rear extension with a proposed depth of 7.00 metres, maximum height of 3.60 metres and eaves height of 3.00 metres. Following demolition of the existing side/rear outrigger. (Amended Description)

  Decided Prior approval Extension Demolition
  Small domestic

• 80 Russell Lane London N20 0AP

  25/4596/HSE Submitted 18 Nov 2025 50 yards away

  77% historically approved · decision due ~22 Jan

  Single storey side/rear extension with 1no. roof lantern following the partial demolition of existing garage. Roof extension involving a side dormer window. Erection of rear outbuilding following the demolition of existing (Amended Description)

  Awaiting decision Householder Extension Loft or dormer +2 7 docs
  Small domestic

• 5 Ashbourne Avenue London N20 0AL

  26/1618/HSE Submitted 29 Apr 2026 50 yards away

  Single storey rear extension with 1no. roof lantern, raised decking area with associated access steps and privacy screening. New front porch with pitched roof. New front hardstanding and vehicular access to provide off-street parking

  Granted Householder Extension Windows or glazing 6 docs
  Small domestic

• 5 Ashbourne Avenue London N20 0AL

  26/0678/HSE Submitted 20 Feb 2026 50 yards away

  Single storey rear extension with 1no. roof lantern, raised decking area with associated access steps and privacy screening. New front porch with pitched roof. New front hardstanding and vehicular access to provide off-street parking

  Refused Householder Extension Windows or glazing 7 docs
  Small domestic

• 7 Ashbourne Avenue London N20 0AL

  25/3730/192 Submitted 10 Sep 2025 50 yards away

  80% historically approved · decision due ~5 Nov

  Roof extension involving hip to gable, rear dormer window with juliette balcony and 2no. front facing rooflights

  Awaiting decision Lawful development Extension Loft or dormer +1 21 docs

• 7 Ashbourne Avenue London N20 0AL

  25/3862/192 Submitted 19 Sep 2025 50 yards away

  80% historically approved · decision due ~14 Nov

  Roof extension involving hip to gable, rear dormer window with juliette balcony and 2no. front facing rooflights

  Awaiting decision Lawful development Extension Loft or dormer +1 21 docs

• 26/3823/PNH Awaiting decision

  7 Southbourne Crescent London NW4 2LB

  Single storey rear extension added to an existing extension with the total extension measuring 6.00 metres deep, with a maximum height of 3.00 metres and an eaves height of 3.00 metres.

  21 Oct 2026 Prior approval
• 26/3809/PND Awaiting decision

  10 Clifford Road Barnet EN5 5PG

  Demolition of existing garage and attached pitched-roof structure

  21 Oct 2026 Prior approval
• 26/3787/PNH Awaiting decision

  8 Wessex Gardens London NW11 9RT

  2no. single-storey rear extensions with a proposed depth of 6.00 metres, a maximum height of 4.00 metres and an eaves height of 3.00 metres, following the demolition of the existing rear bay window.

  19 Oct 2026 Prior approval
• 26/3696/PNH Awaiting decision

  14 Langford Road Barnet EN4 9DS

  Single storey rear extension with a proposed depth of 5 metres, maximum height of 3.97 metres and eaves height of 2.6 metres

  13 Oct 2026 Prior approval
• 26/3700/PNH Awaiting decision

  10 Sylvester Road London N2 8HN

  Single storey rear extension with a proposed depth of 4.3 metres, maximum height of 3.15 metres and eaves height of 3 metres following demoltion of existing store.

  Received 13 Oct, published by the council 19 Oct 2026 Prior approval