80 Russell Lane London N20 0AP

1. 18 Nov 2025

   Received by Barnet

2. 27 Nov 2025

   Validated

   Checked as complete and ready for consideration.

3. 10 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 22 January 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 46 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 householder applications in a median of 56 days. More in our guide to how long planning decisions take.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 78 Russell Lane London N20 0AP

  26/3819/PNH Submitted 20 Oct 2026 50 yards away

  56% historically approved · decision due ~17 Dec

  2no. Single storey rear extensions 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.

  Awaiting decision Prior approval Extension Demolition
  Small domestic

• 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

• 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

• Rear Of 90 Russell Lane London N20 0AR

  25/3884/191 Submitted 22 Sep 2025 50 yards away

  80% historically approved · decision due ~17 Nov

  Use as a two storey single family dwelling

  Awaiting decision Lawful development 5 docs
  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

• 26/3827/HSE Awaiting decision

  43 Hermitage Lane London NW2 2HE

  Single storey rear extension with 3no. rooflights following demolition of the existing conservatory. Replacement front bay window and entrance porch. First floor rear juliette balcony. Changes to fenestration including new window openings and enlarged front rooflight

  22 Oct 2026 Householder
• 26/3833/HSE Awaiting decision

  47 Holne Chase London N2 0QG

  Single storey rear extension. Replacement of single glazed windows with double glazing. Alterations to side/rear fenestration. Alterations and replacement of existing rear dormer window addition of 2no. side dormer windows and 3no. rooflights. Installation of cameras and wall lights. Replacement of the front entrance and garage doors, installation of timber side garden gates

  22 Oct 2026 Householder
• 26/3815/HSE Awaiting decision

  17 Hurstwood Road London NW11 0AS

  Single storey rear extension

  21 Oct 2026 Householder
• 26/3800/HSE Awaiting decision

  29 Monks Avenue Barnet EN5 1BZ

  Single storey side and rear infill extension including new front porch following demolition of the side/rear storage.

  Received 20 Oct, published by the council 21 Oct 2026 Householder
• 26/3791/HSE Awaiting decision

  149 Montrose Avenue Edgware HA8 0DZ

  New front hardstanding and vechicular access to provide off-street parking

  Received 20 Oct, published by the council 21 Oct 2026 Householder