1A Ridge Close London NW4 1ER

1. 26 May 2026

   Received by Barnet

2. 28 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 12 Jun 2026

   Decision issued: Unlawful

4. 16 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

• 1A Ridge Close London NW4 1ER

  26/0492/191 Submitted 9 Feb 2026 0m away

  79% historically approved · decision due ~6 Apr

  Use of the rear outbuilding as 1no. self-contained dwelling (Use Class C3)

  Awaiting decision Lawful development 4 docs
  Small domestic

• 1A Ridge Close London NW4 1ER

  26/2967/191 Submitted 10 Aug 2026 36m away

  79% historically approved · decision due ~6 Oct

  Use of building in the rear garden as a self-contained dwelling (Use Class C3)

  Awaiting decision
  Domestic

• 1B Ridge Close London NW4 1ER

  26/2928/192 Submitted 7 Aug 2026 36m away

  79% historically approved · decision due ~6 Oct

  Roof extension with rear dormer window, 2 side facing rooflights. Changes to fenestration; new bifold doors at ground floor level

  Awaiting decision Extension Loft or dormer +1

• 18A Holders Hill Crescent London NW4 1ND

  26/1346/FUL Submitted 13 Apr 2026 90m away

  60% historically approved · decision due ~22 Jun

  Single storey rear extension with roof lantern. Conversion and extension of the garage into habitable room, insertion of window and door to replace existing garage door

  Awaiting decision Full applications Extension Windows or glazing 4 docs
  Small domestic

• 18A Holders Hill Crescent London NW4 1ND

  25/4392/FUL Submitted 4 Nov 2025 91m away

  60% historically approved · decision due ~19 Jan

  Single storey rear extension with roof lantern. Conversion of the garage into habitable room, insertion of window and door to replace existing garage door

  Awaiting decision Full applications Extension Windows or glazing 3 docs
  Small domestic

• 31 Holders Hill Avenue London NW4 1ES

  24/2050/192 Submitted 23 May 2024 106m 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

• 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