3 Devonshire Crescent London NW7 1DN

1. 22 Oct 2026

   Received by Barnet

2. 22 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 17 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 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.

• 74 Devonshire Road London NW7 1DP

  26/3313/HSE Submitted 10 Sep 2026 100 yards away

  77% historically approved · decision due ~9 Nov

  Part single, part two story side and rear extension

  Decided Householder Extension
  Domestic

• 20 Kingsbridge Drive London NW7 1HN

  25/3735/192 Submitted 10 Sep 2025 100 yards away

  80% historically approved · decision due ~11 Nov

  Single storey rear extension with roof lantern. Alterations to the existing patio area. Roof extension involving rear dormer window and 2no. front facing rooflights

  Awaiting decision Lawful development Extension Loft or dormer +1 11 docs
  Small domestic

• 73 Devonshire Road London NW7 1DR

  25/5153/HSE Submitted 23 Dec 2025 100 yards away

  77% historically approved · decision due ~18 Feb

  Roof extension involving hip to gable with rear dormer windows. Conversion of the existing garage into habitable room, insertion of window to replace the garage door

  Awaiting decision Householder Extension Loft or dormer +1 7 docs
  Domestic

• 64 Devonshire Road London NW7 1LL

  25/5038/192 Submitted 16 Dec 2025 150 yards away

  80% historically approved · decision due ~10 Feb

  Single storey rear extension with 2no. rooflights

  Awaiting decision Lawful development Extension Loft or dormer 4 docs
  Small domestic

• 20 Oakhampton Road London NW7 1NH

  26/0702/HSE Submitted 23 Feb 2026 150 yards away

  Replacement of existing conservatory roof with flat roof. Changes to fenestration

  Granted Householder Extension Windows or glazing 9 docs
  Small domestic

• 6 Oakhampton Road London NW7 1NH

  26/1416/HSE Submitted 16 Apr 2026 150 yards away

  Part single, part two storey, side and rear extensions with pergola

  Refused Householder Extension 13 docs
  Domestic

• 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
• 26/3787/PNH Awaiting decision

  8 Wessex Gardens London NW11 9RT

  2no. single-storey rear extensions with a proposed depth of 6.00 metres, a maximum height of 4.00 metres and an eaves height of 3.00 metres, following the demolition of the existing rear bay window.

  19 Oct 2026 Prior approval