8 Allandale Avenue London N3 3PJ

This site has had 2 applications since 2026: 0 approved, 2 refused.

• 26/0629/PNH Refused

  8 Allandale Avenue London N3 3PJ

  Single storey rear extension with a proposed depth of 8.00m from original rear wall, maximum height of 3.00m and an eaves height of between 2.77m and 2.83m

  Decided 26 Mar 2026 Prior approval

1. 10 Jun 2026

   Received by Barnet

2. 18 Jun 2026

   Validated

   Checked as complete and ready for consideration.

3. 12 Aug 2026

   Decision issued: Refuse

4. 16 Aug 2026

   Added to PlanIndex

Barnet refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

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.

• 8 Allandale Avenue London N3 3PJ

  26/0629/PNH Submitted 18 Feb 2026 50 yards away

  Single storey rear extension with a proposed depth of 8.00m from original rear wall, maximum height of 3.00m and an eaves height of between 2.77m and 2.83m

  Refused Prior approval Extension 10 docs
  Small domestic

• Highview Chessington Avenue London N3 3DP

  26/2872/HSE Submitted 4 Aug 2026 50 yards away

  77% historically approved · decision due ~29 Sep

  Lower ground floor rear extension to create a terrace to link main house accommodation to garden with rear external access steps and associated rear lightwells. Roof extension involving hip to gable with new mansard roof, with 4no. front facing, 3no rear facing rooflights

  Withdrawn Householder Extension Loft or dormer
  Domestic

• 28 Chessington Avenue London N3 3DP

  26/0184/HSE Submitted 19 Jan 2026 100 yards away

  77% historically approved · decision due ~16 Mar

  Part single part two-storey rear extension, following removal of the existing shed. Raising of existing lower flat roof to create large crown roof. Roof extension involving side and rear dormer window and 2no. front and 3no. side facing rooflights (AMENDED DESCRIPTION)

  Awaiting decision Householder Extension Loft or dormer +1 4 docs
  Small domestic

• 30 Fairholme Gardens London N3 3EB

  25/5190/HSE Submitted 29 Dec 2025 200 yards away

  77% historically approved · decision due ~23 Feb

  Single storey rear extension with 2no. rooflights. Conversion of the existing garage into habitable room, insertion of window to replace the existing garage door

  Awaiting decision Householder Extension Loft or dormer +1 8 docs
  Small domestic

• 30 Fairholme Gardens London N3 3EB

  26/1221/HSE Submitted 31 Mar 2026 200 yards away

  77% historically approved · decision due ~28 May

  First floor rear extension. Changes to fenestration

  Awaiting decision Householder Extension Windows or glazing 6 docs
  Domestic

• 72-74 Regents Park Road London N3 3JH

  25/3686/S73 Submitted 8 Sep 2025 250 yards away

  93% historically approved · decision due ~14 Nov

  Variation of condition 1 (Approved Plans) of planning permission reference 23/4042/FUL dated 30/01/24 for 'Demolition of the existing property and erection of a part three, part four storey building plus basement comprising of nine self-contained flats with car and cycle parking at basement level, refuse/recycling storage, plant room, associated amenity space and landscaping.' Variation to include: Use of ground floor flat roof as terrace for first floor flat; Provision of 1500mm deep cantilevered balcony at second floor level with 1800mm high privacy screen; Use of second floor flat roof as a terrace at third floor level with 1700mm high privacy screen

  Awaiting decision Conditions New dwelling Demolition 16 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