9 Lyndhurst Avenue London NW7 2AD

This site has had 6 applications since 2026: 1 approved, 2 refused.

• 26/3727/HSE Awaiting decision

  9 Lyndhurst Avenue London NW7 2AD

  Single storey rear extension

  Submitted 15 Oct 2026 Householder
• 26/2914/HSE Awaiting decision

  9 Lyndhurst Avenue London NW7 2AD

  Erection of a rear outbuilding with crown roof and 2no. rooflights and the construction of an associated base

  Submitted 6 Aug 2026 Householder
• 26/2380/PNH Refused

  9 Lyndhurst Avenue London NW7 2AD

  Single storey rear extension with a proposed maximum depth of 6.00 metres, maximum height of 4.00 metres and eaves height of 3.00 metres, following demolition of existing outbuilding.

  Decided 28 Jul 2026 Prior approval
• 26/2382/192 Refused

  9 Lyndhurst Avenue London NW7 2AD

  Erection of a rear outbuilding with 2no. rooflights

  Decided 21 Jul 2026 Lawful development
• 26/2391/192 Granted

  9 Lyndhurst Avenue London NW7 2AD

  Roof extension involving hip to gable, rear dormer window and front and side facing rooflights

  Decided 2 Jul 2026 Lawful development

1. 6 Aug 2026

   Received by Barnet

2. 7 Aug 2026

   Added to PlanIndex

3. 11 Sep 2026

   Status changed to Prior Approval Not Required

   Previously Pending Consideration.

4. Decision

   Awaiting decision

   Decision expected by 1 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.

• 7 Lyndhurst Avenue London NW7 2AD

  26/2283/192 Submitted 17 Jun 2026 50 yards away

  79% historically approved · decision due ~13 Aug

  Roof extension involving side cottage dormers including rear dormer window with juliette balcony, 2no. front facing rooflights. Alterations to main ridge height reducing its final height. Removal of chimney to side roofslope. Replacement of first floor rear gable pitched roof with flat roof [Amended Description]

  Awaiting decision Extension Loft or dormer +2

• 9 Lyndhurst Avenue London NW7 2AD

  26/3727/HSE Submitted 15 Oct 2026 50 yards away

  77% historically approved · decision due ~10 Dec

  Single storey rear extension

  Awaiting decision Householder Extension
  Small domestic

• 9 Lyndhurst Avenue London NW7 2AD

  26/2914/HSE Submitted 6 Aug 2026 50 yards away

  77% historically approved · decision due ~1 Oct

  Erection of a rear outbuilding with crown roof and 2no. rooflights and the construction of an associated base

  Awaiting decision Householder Loft or dormer 4 docs
  Small domestic

• 50 Woodcroft Avenue London NW7 2AG

  26/2314/192 Submitted 18 Jun 2026 100 yards away

  79% historically approved · decision due ~13 Aug

  Erection of a rear outbuilding

  Awaiting decision

• 9 Lyndhurst Avenue London NW7 2AD

  26/2380/PNH Submitted 23 Jun 2026 100 yards away

  Single storey rear extension with a proposed maximum depth of 6.00 metres, maximum height of 4.00 metres and eaves height of 3.00 metres, following demolition of existing outbuilding.

  Refused Prior approval Extension Demolition 10 docs
  Small domestic

• 9 Lyndhurst Avenue London NW7 2AD

  26/2382/192 Submitted 23 Jun 2026 100 yards away

  Erection of a rear outbuilding with 2no. rooflights

  Refused Lawful development Loft or dormer 5 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 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