45 Summerlee Avenue London N2 9QP

1. 29 Oct 2026

   Received by Barnet

2. 29 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 24 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 45 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.

• 30 Summerlee Avenue London N2 9QP

  26/3655/HSE Submitted 8 Oct 2026 50 yards away

  77% historically approved · decision due ~4 Dec

  Roof extension including rear dormer window, juliette balcony and 2no. front facing rooflights including materials change from red clay to red zinc tiles

  Awaiting decision Householder Extension Loft or dormer +1
  Domestic

• 30 Summerlee Avenue London N2 9QP

  26/2299/PNH Submitted 18 Jun 2026 50 yards away

  56% historically approved · decision due ~13 Aug

  Single storey rear extension with a proposed depth of 4.05m, maximum height of 3.00m and an eaves height of 3.00m

  Awaiting decision Prior approval Extension
  Small domestic

• 30 Summerlee Avenue London N2 9QP

  26/0905/192 Submitted 10 Mar 2026 50 yards away

  Single storey rear extension with 2no. rooflights following demolition of existing timber extension. Single storey outbuilding to rear garden with green roof. New front porch

  Granted Lawful development Extension Loft or dormer +1 22 docs
  Small domestic

• 30 Summerlee Avenue London N2 9QP

  26/1799/PNH Submitted 13 May 2026 50 yards away

  Single storey rear extension with a maximum proposed depth of 4.05m, maximum height of 3.33m and an eaves height of 3.33m (height of lowered section 3.08m)

  Refused Prior approval Extension 29 docs
  Small domestic

• 30 Summerlee Avenue London N2 9QP

  26/0307/HSE Submitted 27 Jan 2026 50 yards away

  77% historically approved · decision due ~25 Mar

  Single storey rear extension with roof lights following demolition of existing timber extension. Increase depth of existing cellar to form new storage room. Single storey outbuilding to rear garden with green roof. New front porch. Replacement of existing windows with new timber framed double-glazed windows

  Awaiting decision Householder Extension Loft or dormer +2 23 docs
  Small domestic

• 30 Summerlee Avenue London N2 9QP

  26/0308/192 Submitted 27 Jan 2026 50 yards away

  80% historically approved · decision due ~25 Mar

  Roof extension including rear dormer window with juliette balcony and 2no. rooflights to front roofslope

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

• 26/3947/HSE Awaiting decision

  20 Fallow Court Avenue London N12 0EB

  Single storey side and rear extension

  30 Oct 2026 Householder
• 26/3933/HSE Awaiting decision

  11 Talbot Avenue London N2 0LS

  Single storey rear infill extension

  29 Oct 2026 Householder
• 26/3913/HSE Awaiting decision

  167 Chase Side Southgate N14 5HE

  Single storey rear extension following demolition of the existing extension and conservatory

  28 Oct 2026 Householder
• 26/3897/HSE Awaiting decision

  75 Exeter Road London N14 5JU

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

  Received 27 Oct, published by the council 28 Oct 2026 Householder
• 26/3910/HSE Awaiting decision

  46 Wildwood Road London NW11 6UP

  Modifications to the rear dormer window and insertion of 2no. conservation skylights at either side of the rear gable roof

  Received 27 Oct, published by the council 28 Oct 2026 Householder