24 Longfield Avenue London NW7 2EG

1. 21 Aug 2026

   Received by Barnet

2. 24 Aug 2026

   Added to PlanIndex

3. 17 Sep 2026

   Status changed to Prior Approval Not Required

   Previously Pending Consideration.

4. Decision

   Awaiting decision

   Decision expected by 16 October 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 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.

• 44 Longfield Avenue London NW7 2EG

  21/4932/HSE Submitted 13 Sep 2021 50 yards away

  Roof extension involving rear dormer window, 1no side and 2no front facing rooflight. Single storey rear extension. (amended description)

  Granted Householder Extension Loft or dormer +1 15 docs
  Small domestic

• 48 And 50 Longfield Avenue London NW7 2EG

  25/3945/FUL Submitted 29 Sep 2025 100 yards away

  63% historically approved · decision due ~24 Nov

  Two storey side extension to both properties. Single storey rear extension to No. 48. Relocation of entrance door to No.50 to front elevation including new porch

  Awaiting decision Full applications Extension 17 docs
  Small domestic

• 48 Longfield Avenue London NW7 2EG

  25/4738/192 Submitted 26 Nov 2025 100 yards away

  Roof extension involving rear dormer window and new side gable window

  Withdrawn Lawful development Extension Loft or dormer +1 15 docs

• 48 And 50 Longfield Avenue London NW7 2EG

  25/4455/FUL Submitted 7 Nov 2025 100 yards away

  63% historically approved · decision due ~9 Jan

  Two storey side extension to both properties. Single storey rear extension to No. 48. Relocation of entrance door to No.50 to front elevation including new porch

  Awaiting decision Full applications Extension 18 docs
  Small domestic

• 53 Tithe Walk London NW7 2PY

  26/1167/HSE Submitted 26 Mar 2026 100 yards away

  Single storey rear extension with 3no. rooflights following demolition of the existing conservatory

  Granted Householder Extension Loft or dormer +1 6 docs
  Small domestic

• 57 Tithe Walk London NW7 2PY

  26/0593/PNH Submitted 16 Feb 2026 100 yards away

  Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 2.90 metres, following demolition of existing garage

  Refused Prior approval Extension Demolition 8 docs
  Small domestic

• 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 and attached pitched-roof structure

  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