88 Hertford Road London N2 9BU

1. 17 Feb 2026

   Received by Barnet

2. 10 Mar 2026

   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

• 82 Hertford Road London N2 9BU

  26/2884/HSE Submitted 4 Aug 2026 18m away

  77% historically approved · decision due ~2 Oct

  Removal of an existing external AC condenser unit located on the side elevation and installation of 2no. domestic air conditioning condenser units located on the side and rear elevation

  Awaiting decision Householder 23 docs
  Domestic

• 76A Hertford Road London N2 9BU

  26/0432/FUL Submitted 5 Feb 2026 37m away

  60% historically approved · decision due ~2 Apr

  Single storey side and rear extension with 4no. rooflights

  Awaiting decision Full applications Extension Loft or dormer 9 docs
  Small domestic

• 223 Creighton Avenue London N2 9BP

  26/0280/HSE Submitted 26 Jan 2026 41m away

  Single storey front porch extension

  Granted Householder Extension 7 docs
  Small domestic

• 99 Hertford Road London N2 9BX

  26/1118/192 Submitted 24 Mar 2026 52m away

  79% historically approved · decision due ~19 May

  Roof extension involving rear dormer windows and front and rear facing rooflights and solar panels. Removal of the chimney stack

  Awaiting decision Lawful development Extension Loft or dormer +1 3 docs

• 47 Hertford Road London N2 9BX

  26/2374/192 Submitted 23 Jun 2026 95m away

  79% historically approved · decision due ~18 Aug

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

  Awaiting decision Extension Loft or dormer +1

• 47 Hertford Road London N2 9BX

  26/2948/192 Submitted 10 Aug 2026 95m away

  79% historically approved · decision due ~5 Oct

  Roof extension involving 1no. rear dormer window over main roof, 1no. rear dormer over outrigger roof and 2no. front facing rooflights. (Amended Description).

  Awaiting decision Extension Loft or dormer +1

• 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