11 Hill Crescent London N20 8HB

1. 11 Sep 2025

   Received by Barnet

2. 10 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 6 November 2025, 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.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 11 Hill Crescent London N20 8HB

  26/1688/192 Submitted 6 May 2026 1m away

  79% historically approved · decision due ~1 Jul

  Erection of a rear outbuilding

  Awaiting decision Lawful development 5 docs

• Norton 101 Totteridge Lane London N20 8DX

  TPP/0790/25 Submitted 24 Nov 2025 60m away

  86% historically approved · decision due ~19 Jan

  1 x Weeping Willow - Lift branches up to 4m in height to facilitate the proposed development by the neighbour at the adjacent property in which the tree overhangs. Standing in T1 of Tree Preservation Order.

  Awaiting decision Trees 3 docs

• 10 Greenway London N20 8ED

  25/4962/HSE Submitted 11 Dec 2025 120m away

  77% historically approved · decision due ~5 Feb

  Part single, part two storey side and rear extension following demolition of the existing garage and conservatory. Roof extension including side and rear dormer window with juliette balcony and 1no. front and side facing rooflight following removal of existing roof dormer

  Awaiting decision Householder Extension Loft or dormer +2 4 docs
  Small domestic

• 8 Greenway London N20 8ED

  25/3673/191 Submitted 5 Sep 2025 126m away

  79% historically approved · decision due ~3 Nov

  Single storey rear conservatory

  Awaiting decision Lawful development Extension 6 docs
  Small domestic

• 2 Greenway London N20 8ED

  26/2482/RCU Submitted 30 Jun 2026 129m away

  79% historically approved · decision due ~3 Sep

  Installation of front access gates and boundary wall with associated pillars and new side fencing (Retrospective Application)

  Awaiting decision
  Small domestic

• Side Of 2 West Hill Way London N20 8QP

  25/3898/LIC Submitted 22 Sep 2025 140m away

  Installation of 1no. 9m wooden pole

  Decided

• 26/2679/192 Decided

  21 Myddelton Park London N20 0JH

  Single storey rear extension and increase in ridge height of existing rear outrigger (Amended description).

  20 Jul 2026 Lawful development
• 26/1907/191 Decided

  8 Golders Manor Drive London NW11 9HT

  Use of the property as a self-contained residential unit at ground floor level and the first and second floors as a 4-bedroom, 4-person House in Multiple Occupation (Sui Generis) (AMENDED DESCRIPTION)

  21 May 2026 Lawful development
• 26/2059/192 Decided

  Low Ridge Rowley Lane Barnet EN5 3HS

  Erection of a rear outbuilding

  3 Jun 2026 Lawful development
• 26/2066/192 Decided

  355 Hendon Way London NW4 3NB

  Roof extension involving rear dormer window and 3no. front facing rooflights. Removal of chimney on rear elevation (AMENDED DESCRIPTION)

  3 Jun 2026 Lawful development
• 26/1663/192 Decided

  152 Deans Lane Edgware HA8 9NT

  Change of use from single family dwellinghouse (Class C3a) to supported living accommodation Class C3b)

  5 May 2026 Lawful development