17 Western Avenue London NW11 9HE

This site has had 2 applications since 2025: 1 approved, 0 refused.

• 25/4041/HSE Granted

  17 Western Avenue London NW11 9HE

  Part single, part two storey rear and single storey side extensions. Roof extension with side/rear wraparound dormers with 4no. front facing rooflights and new side gable window

  Decided 10 Dec 2025 Householder

1. 30 Apr 2026

   Received by Barnet

2. 1 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 25 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 26 June 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 44 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 householder applications in a median of 56 days. More in our guide to how long planning decisions take.

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.

• 17 Western Avenue London NW11 9HE

  25/4041/HSE Submitted 6 Oct 2025 50 yards away

  Part single, part two storey rear and single storey side extensions. Roof extension with side/rear wraparound dormers with 4no. front facing rooflights and new side gable window

  Granted Householder Extension Loft or dormer +1 17 docs
  Small domestic

• 36 Western Avenue London NW11 9HJ

  26/2957/HSE Submitted 10 Aug 2026 50 yards away

  77% historically approved · decision due ~27 Oct

  Single storey rear and infill extension with new roof and 2no. rooflights and solar panels and shading. Extension of the existing shed and installation of air conditioning unit

  Awaiting decision Householder Extension Loft or dormer +1 12 docs
  Small domestic

• 24 Western Avenue London NW11 9HJ

  26/0257/HSE Submitted 22 Jan 2026 50 yards away

  77% historically approved · decision due ~26 Mar

  Part single, part two storey rear extension

  Awaiting decision Householder Extension 3 docs
  Domestic

• 24 Western Avenue London NW11 9HJ

  26/1425/PNH Submitted 17 Apr 2026 50 yards away

  58% historically approved · decision due ~19 Jun

  Single storey rear extension with a proposed depth of 5.00m, maximum height of 3.00m and an eaves height of 3.00m following the demolition of the existing outrigger

  Awaiting decision Prior approval Extension Demolition 2 docs
  Small domestic

• 24 Western Avenue London NW11 9HJ

  25/4897/PNH Submitted 5 Dec 2025 50 yards away

  Single storey rear extension with a proposed depth of 6.00m, maximum height of 3.00m and eaves height of 3.00m

  Granted Prior approval Extension 3 docs
  Small domestic

• 24 Western Avenue London NW11 9HJ

  26/1996/HSE Submitted 28 May 2026 50 yards away

  Single storey rear extension. First floor rear extension (AMENDED DESCRIPTION)

  Granted Householder Extension 5 docs
  Small domestic

• 26/3422/HSE Awaiting decision

  Revelstroke 28 Totteridge Village London N20 8JN

  Construction of a swimming pool and associated hard and soft landscaping following demolition of the existing shed including new access steps. Alterations to the ground level. Replacement of an existing timber decking terrace with a paved terrace.

  18 Sep 2026 Householder
• 26/3396/HSE Awaiting decision

  43 Dukes Avenue London N3 2DE

  Single storey rear, part two storey side extension with 1no. rooflight following the demolition of existing shed. Roof extension with rear dormer window, 1no. front, 3no. side facing rooflights and roof windows to the front and side roof slopes. Installation of solar panels to side elevation of roof

  17 Sep 2026 Householder
• 26/3410/HSE Awaiting decision

  54 Ferney Road Barnet EN4 8LE

  Single storey rear extension with alteration to the raised terrace area including new access steps to garden

  17 Sep 2026 Householder
• 26/3415/HSE Awaiting decision

  11 Downage London NW4 1AS

  Alterations and extensions to the roof including rear dormer window and the partial removal of the roof of the first floor rear extension, creation of a new crown roof over main roof and rear extension, 1no. front, 1no. side, 1no. rear facing rooflight and 1no. on crown roof

  Received 17 Sep, published by the council 18 Sep 2026 Householder
• 26/3382/HSE Awaiting decision

  11 Layfield Crescent London NW4 3UJ

  Part single, part two storey rear extension with flat roof and 1no. skylight

  Received 16 Sep, published by the council 18 Sep 2026 Householder