57 Holders Hill Avenue London NW4 1ES

1. 2 Jul 2026

   Received by Barnet

2. 9 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 27 August 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 43 days over the applications it decided in the last year.

This application is with Barnet for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

This page mirrors an entry on the statutory planning register that Barnet is required to keep. The published feed for this record does not state which type of application it is, which is common for older entries and for some council systems; the register entry on the council portal will say, alongside the case officer and any consultation dates.

Every planning application follows the same broad path: submission, validation, publicity, then a decision by officers or committee. Our guide to planning application types explains the common types and what each can approve.

• 15 Robin Lane London NW4 1EU

  26/0457/HSE Submitted 6 Feb 2026 66m away

  77% historically approved · decision due ~3 Apr

  Erection of a rear outbuilding with 2no. rooflights

  Awaiting decision Householder Loft or dormer 9 docs
  Small domestic

• 15 Robin Lane London NW4 1EU

  26/0416/192 Submitted 4 Feb 2026 66m away

  79% historically approved · decision due ~1 Apr

  Roof extension involving roof extension, rear dormer and front window

  Awaiting decision Lawful development Extension Loft or dormer +1 6 docs

• 15 Robin Lane London NW4 1EU

  26/1898/RCU Submitted 20 May 2026 66m away

  Front dormer window (Retrospective Application)

  Granted Amendments Loft or dormer Windows or glazing 10 docs

• 15 Robin Lane London NW4 1EU

  26/1899/192 Submitted 20 May 2026 66m away

  Roof extension involving hip to gable and rear dormer window

  Decided Lawful development Extension Loft or dormer +1 8 docs

• 31 Holders Hill Avenue London NW4 1ES

  24/2050/192 Submitted 23 May 2024 67m away

  Roof extension involving hip to gable and rear dormer window. New front porch. Erection of a rear outbuilding, following demolition of existing outbuilding. (amended)

  Decided Lawful development Extension Loft or dormer +2 6 docs
  Small domestic

• 3 Robin Lane London NW4 1EU

  26/1721/HSE Submitted 7 May 2026 75m away

  77% historically approved · decision due ~2 Jul

  Erection of a rear summer house

  Awaiting decision Householder 6 docs
  Domestic