46 Southway London N20 8DB

This site has had 5 applications since 2025: 1 approved, 0 refused.

• 26/3003/192 Awaiting decision

  46 Southway London N20 8DB

  Erection of rear outbuilding

  Submitted 14 Aug 2026
• 26/0816/192 Granted

  46 Southway London N20 8DB

  Roof extension involving hip to gable with juliette balcony and 1no. front facing rooflights Conversion of the existing garage to habitable room insertion of window to replace the garage door

  Decided 29 Apr 2026 Lawful development
• 26/0203/192 Awaiting decision

  46 Southway London N20 8DB

  Roof extension involving hip to gable with juliette balcony and 1no. front facing rooflights. Single storey side extension following the demolition of existing conservatory. Conversion of the existing garage to habitable room insertion of window to replace the garage door. Erection of rear outbuilding

  Submitted 20 Jan 2026 Lawful development
• 25/3830/HSE Awaiting decision

  46 Southway London N20 8DB

  Part single, part two-storey side and rear extension with 2no. rear juliette balconies to rear elevation, following demolition of existing garage and conservatory. Roof extension including 1no. dormer window to front, side and rear elevations. Single-storey rear outbuilding/garden room

  Submitted 18 Sep 2025 Householder

1. 14 Apr 2026

   Received by Barnet

2. 24 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 25 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 19 June 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 43 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.

• 46 Southway London N20 8DB

  26/0203/192 Submitted 20 Jan 2026 1m away

  80% historically approved · decision due ~17 Mar

  Roof extension involving hip to gable with juliette balcony and 1no. front facing rooflights. Single storey side extension following the demolition of existing conservatory. Conversion of the existing garage to habitable room insertion of window to replace the garage door. Erection of rear outbuilding

  Awaiting decision Lawful development Extension Loft or dormer +2 15 docs
  Small domestic

• 46 Southway London N20 8DB

  26/0816/192 Submitted 4 Mar 2026 6m away

  Roof extension involving hip to gable with juliette balcony and 1no. front facing rooflights Conversion of the existing garage to habitable room insertion of window to replace the garage door

  Granted Lawful development Extension Loft or dormer +1 14 docs

• 46 Southway London N20 8DB

  25/3830/HSE Submitted 18 Sep 2025 6m away

  77% historically approved · decision due ~13 Nov

  Part single, part two-storey side and rear extension with 2no. rear juliette balconies to rear elevation, following demolition of existing garage and conservatory. Roof extension including 1no. dormer window to front, side and rear elevations. Single-storey rear outbuilding/garden room

  Awaiting decision Householder Extension Loft or dormer +2 17 docs
  Small domestic

• 46 Southway London N20 8DB

  26/3003/192 Submitted 14 Aug 2026 11m away

  79% historically approved · decision due ~9 Oct

  Erection of rear outbuilding

  Awaiting decision

• 53 And 55 Southway London N20 8DD

  25/4298/FUL Submitted 28 Oct 2025 52m away

  Single storey side and rear extension with new access steps to no.53 with 6no. rooflights to no.53 and demolition of the existing garage, and single storey side extension with 2no. rooflights to no.55

  Granted Full applications Extension Loft or dormer +1 9 docs
  Small domestic

• 69 Southway London N20 8DE

  26/1432/192 Submitted 17 Apr 2026 77m away

  Roof extension involving hip to gable, rear dormer window, 3no. front facing rooflights, 1no. rooflight sited on flat roof and 2no. side gable windows. Demolition of chimney. (amended)

  Granted Lawful development Extension Loft or dormer +2 11 docs

• 26/3396/HSE Awaiting decision

  43 Dukes Avenue London N3 2DE

  Single storey rear, part two storey side extension with 1no. rooflight following the demolition of existing shed. Roof extension with rear dormer window, 1no. front, 3no. side facing rooflights and roof windows to the front and side roof slopes. Installation of solar panels to side elevation of roof

  17 Sep 2026 Householder
• 26/3410/HSE Awaiting decision

  54 Ferney Road Barnet EN4 8LE

  Single storey rear extension with alteration to the raised terrace area including new access steps to garden

  17 Sep 2026 Householder
• 26/3385/HSE Awaiting decision

  Three Gables Bungalow Boyne Avenue London NW4 2JL

  Excavation of basement level with associated front and western lightwells. Single storey rear extensions with new patio area. Alterations to ground levels. Formation of first floor with new pitched gable roof with 2no. front and 2no. rear dormers and 2no. front facing, 2no side rooflights with associated hard and soft landscaping

  16 Sep 2026 Householder
• 26/3386/HSE Awaiting decision

  9 Colin Gardens London NW9 6EL

  Single storey rear extension with 1no. rooflight following demolition of the existing garage

  16 Sep 2026 Householder
• 26/3363/HSE Awaiting decision

  125 Park Road Barnet EN4 9QN

  Single storey side / rear extension including garage with 1no. roof lantern following the demolition of existing garage and front porch. Roof extension involving hip to gable on both sides with rear dormer window and 3no. front facing rooflights

  15 Sep 2026 Householder