34 Northiam London N12 7HA

1. 10 Sep 2025

   Received by Barnet

2. 10 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 5 November 2025, 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 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.

• 1 Northiam London N12 7ET

  26/3549/FUL Submitted 1 Oct 2026 100 yards away

  63% historically approved · decision due ~18 Dec

  Single storey side and rear extensions with associated access steps; Alterations to car park; Installation of ventilation equipment to flat roof within timber enclosure; Installation of solar panels to roof

  Awaiting decision Full applications Extension
  Small domestic

• 39 Northiam London N12 7ET

  26/2641/192 Submitted 15 Jul 2026 100 yards away

  78% historically approved · decision due ~9 Sep

  Conversion of the existing garage into habitable room, insertion of window to replace the garage door

  Awaiting decision Windows or glazing

• 76 Southover London N12 7HB

  25/4263/FUL Submitted 24 Oct 2025 100 yards away

  Change of use of ground floor from hair salon (Use Class E) to residential (Use Class C3) for ancillary use to the first floor flat with associated alterations to front elevation

  Granted Full applications 11 docs

• 76 Southover London N12 7HB

  26/3296/FUL Submitted 10 Sep 2026 100 yards away

  63% historically approved · decision due ~5 Nov

  Change of use from Hair Salon (Class E) to amalgamate first floor dwelling into enlarged self-contained dwelling (Class C3) including single storey rear and side extension with carport, utility room, new access steps with associated railing and 2no. rooflights following demolition of the existing garage. New front infill and insertion of 2no. casement windows. Associated rear cycle storage

  Awaiting decision Full applications Extension Loft or dormer +2
  Small domestic

• 71 Southover London N12 7HG

  26/0983/HSE Submitted 16 Mar 2026 150 yards away

  77% historically approved · decision due ~15 Jun

  Conversion of garage into habitable room including insertion of windows to replace existing garage doors and addition of new pitched roof with rooflight. Two storey side extension following demolition of existing store. Roof extension including 1no. side dormer window, 1no. rear dormer window and 2no. front facing rooflights and increase in ridge height. Installation of solar panels. Alterations to ground floor rear projection including changes to fenestration and insertion of rooflights to flat roof. Addition of 1no. AC condenser unit and 1no. Air Source Heat Pump to side elevation. Removal of chimneys

  Awaiting decision Householder Extension Loft or dormer +3 6 docs
  Domestic

• 71 Southover London N12 7HG

  26/2397/CON Submitted 24 Jun 2026 150 yards away

  Submission of details of condition 7 (Noise mitigation - Air Con and ASHP) pursuant to planning permission 26/0983/HSE dated 15/06/2026

  Granted Conditions 3 docs

• 26/3835/PNH Awaiting decision

  3 Devonshire Crescent London NW7 1DN

  Single storey rear extension with a proposed depth of 5.00 metres, maximum height of 3.48 metres and eaves height of 3.00 metres. Following demolition of existing rear outrigger.

  22 Oct 2026 Prior approval
• 26/3832/PNH Awaiting decision

  48 Alverstone Avenue Barnet EN4 8EB

  Single storey rear extension with a proposed depth of 4.5 metres, maximum height of 3.15 metres and eaves height of 3 metres following demolition of existing rear extension.

  22 Oct 2026 Prior approval
• 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

  21 Oct 2026 Prior approval
• 26/3819/PNH Awaiting decision

  78 Russell Lane London N20 0AP

  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.

  Received 20 Oct, published by the council 22 Oct 2026 Prior approval