3 Westbrook Crescent Barnet EN4 9AP

This site has had 3 applications since 2026: 0 approved, 1 refused.

• 26/1918/HSE Refused

  3 Westbrook Crescent Barnet EN4 9AP

  Part single, part two storey rear extension. 1No side window

  Decided 28 Jul 2026 Householder
• 26/1919/192 Awaiting decision

  3 Westbrook Crescent Barnet EN4 9AP

  Roof extension involving rear dormer window and 2no. front facing rooflights

  Submitted 21 May 2026 Lawful development

1. 16 Oct 2026

   Received by Barnet

2. 16 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 11 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 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.

• 12 Westbrook Crescent Barnet EN4 9AR

  25/3609/192 Submitted 2 Sep 2025 50 yards away

  80% historically approved · decision due ~12 Nov

  Single storey side extension. Roof extension involving hip to gable, rear dormer window with juliette balcony, 3no. front facing rooflights and new side gable window

  Awaiting decision Lawful development Extension Loft or dormer +1 2 docs
  Small domestic

• 3 Westbrook Crescent Barnet EN4 9AP

  26/1918/HSE Submitted 21 May 2026 50 yards away

  Part single, part two storey rear extension. 1No side window

  Refused Householder Extension Windows or glazing 11 docs
  Domestic

• 3 Westbrook Crescent Barnet EN4 9AP

  26/1919/192 Submitted 21 May 2026 50 yards away

  80% historically approved · decision due ~16 Jul

  Roof extension involving rear dormer window and 2no. front facing rooflights

  Awaiting decision Lawful development Extension Loft or dormer +1 7 docs

• 6 Westbrook Crescent Barnet EN4 9AR

  25/3660/192 Submitted 4 Sep 2025 50 yards away

  80% historically approved · decision due ~13 Nov

  Roof extension involving hip to gable, rear dormer window, 2no front facing rooflights and new side gable window

  Awaiting decision Lawful development Extension Loft or dormer +1 8 docs

• 2 Lawton Road Barnet EN4 9BS

  26/3120/HSE Submitted 24 Aug 2026 100 yards away

  77% historically approved · decision due ~21 Oct

  Conversion of the existing garage into habitable room including insertion of window and door to replace garage door, alterations to the roof and insertion of rooflights

  Decided Householder Loft or dormer Windows or glazing
  Domestic

• 2 Lawton Road Barnet EN4 9BS

  26/3119/192 Submitted 24 Aug 2026 100 yards away

  79% historically approved · decision due ~21 Oct

  Alterations and extensions to roof including insertion of 3no. rear window, 3no. front facing rooflights and new side gable window

  Awaiting decision Extension Loft or dormer +1

• 26/3827/HSE Awaiting decision

  43 Hermitage Lane London NW2 2HE

  Single storey rear extension with 3no. rooflights following demolition of the existing conservatory. Replacement front bay window and entrance porch. First floor rear juliette balcony. Changes to fenestration including new window openings and enlarged front rooflight

  22 Oct 2026 Householder
• 26/3833/HSE Awaiting decision

  47 Holne Chase London N2 0QG

  Single storey rear extension. Replacement of single glazed windows with double glazing. Alterations to side/rear fenestration. Alterations and replacement of existing rear dormer window addition of 2no. side dormer windows and 3no. rooflights. Installation of cameras and wall lights. Replacement of the front entrance and garage doors, installation of timber side garden gates

  22 Oct 2026 Householder
• 26/3815/HSE Awaiting decision

  17 Hurstwood Road London NW11 0AS

  Single storey rear extension

  21 Oct 2026 Householder
• 26/3800/HSE Awaiting decision

  29 Monks Avenue Barnet EN5 1BZ

  Single storey side and rear infill extension including new front porch following demolition of the side/rear storage.

  Received 20 Oct, published by the council 21 Oct 2026 Householder
• 26/3791/HSE Awaiting decision

  149 Montrose Avenue Edgware HA8 0DZ

  New front hardstanding and vechicular access to provide off-street parking

  Received 20 Oct, published by the council 21 Oct 2026 Householder