157 Sunny Gardens Road London NW4 1SG

1. 4 Sep 2025

   Received by Barnet

2. 9 Sep 2025

   Validated

   Checked as complete and ready for consideration.

3. 10 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 4 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

• 161A Sunny Gardens Road London NW4 1SG

  26/2237/FUL Submitted 16 Jun 2026 7m away

  60% historically approved · decision due ~12 Aug

  Roof extension involving hip to gable, rear dormer window with juliette balcony, 2no. additional front facing rooflights and new side gable window

  Awaiting decision Full applications Extension Loft or dormer +1

• 155 And 157 Sunny Gardens Road London NW4 1SG

  25/3680/FUL Submitted 8 Sep 2025 8m away

  60% historically approved · decision due ~3 Nov

  Part single, part two storey side and rear extensions including conversion of the garage into habitable room, insertion of window to replace the garage door and new front porch. Alterations to existing front bay windows. Creation of basement levels with garden level rooms with associated stairs leading to garden level and patio and front light wells to front elevation. Roof extension including rear dormer windows, side gable windows and 2no. front facing rooflights to both properties

  Awaiting decision Full applications Extension Loft or dormer +1 16 docs
  Small domestic

• 155 Sunny Gardens Road London NW4 1SG

  25/3652/192 Submitted 4 Sep 2025 10m away

  79% historically approved · decision due ~4 Nov

  Erection of a rear outbuilding and shed

  Awaiting decision Lawful development 3 docs
  Small domestic

• Flat 3 130 Sunny Gardens Road London NW4 1SE

  26/1824/RCU Submitted 14 May 2026 48m away

  71% historically approved · decision due ~10 Jul

  Roof extension involving hip to gable, rear dormer window (Retrospective Application)

  Awaiting decision Amendments Extension Loft or dormer +1 10 docs

• 10 Great North Way London NW4 1HY

  26/1555/HSE Submitted 27 Apr 2026 109m away

  77% historically approved · decision due ~24 Jun

  Single storey rear extension with 1no. rooflight

  Awaiting decision Householder Extension Loft or dormer 5 docs
  Small domestic

• 10 Great North Way London NW4 1HY

  26/1710/PNH Submitted 7 May 2026 109m away

  58% historically approved · decision due ~2 Jul

  2no single storey rear extensions, both with a maximum proposed depth of 4.0m, maximum height of 3.3m and an eaves height of 3.0m

  Awaiting decision Prior approval Extension 8 docs
  Small domestic

• 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