25 Wentworth Road Barnet EN5 4NY

1. 11 Aug 2025

   Received by Barnet

2. 10 Sep 2025

   Decision issued: Lawful

3. 10 Aug 2026

   Added to PlanIndex

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

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

• 31 Wentworth Road Barnet EN5 4NY

  21/4250/HSE Submitted 29 Jul 2021 22m away

  Single storey rear extension. New front porch

  Granted Householder Extension 6 docs
  Small domestic

• 10 Wentworth Road Barnet EN5 4NT

  26/2484/HSE Submitted 1 Jul 2026 84m away

  77% historically approved · decision due ~26 Aug

  Erection of a rear outbuilding following demolition of the existing outbuilding

  Awaiting decision Householder Demolition
  Small domestic

• 34 Byng Road Barnet EN5 4NR

  26/2631/PNH Submitted 14 Jul 2026 105m away

  57% historically approved · decision due ~8 Sep

  Single storey rear extension with a proposed depth of 6 metres, maximum height of 3 metres and eaves height of 3 metres, following demolition of the existing rear conservatory.

  Awaiting decision Prior approval Extension Demolition
  Small domestic

• 61 Sebright Road Barnet EN5 4HP

  26/2010/HSE Submitted 29 May 2026 106m away

  Part single, part two storey side and rear extension with first floor juliette balcony and 4no. rooflights following demolition of the existing garage. Changes to garden levels involving extended rear patio. Removal of the existing front porch. Relocation of front door. Changes to fenestration

  Granted Householder Extension Loft or dormer +2 7 docs
  Small domestic

• 61 Byng Road Barnet EN5 4NP

  26/1923/192 Submitted 21 May 2026 151m away

  79% historically approved · decision due ~16 Jul

  Single storey side and rear extension

  Awaiting decision Lawful development Extension 3 docs
  Small domestic

• 17 Sebright Road Barnet EN5 4HR

  26/1292/HSE Submitted 7 Apr 2026 159m away

  Single storey side/rear infill extension with 2no. rooflights

  Granted Householder Extension Loft or dormer 12 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