27 Riverside London NW4 3TU

1. 21 May 2026

   Received by Barnet

2. 16 Jun 2026

   Decision issued: Lawful

3. 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

• 27 Riverside London NW4 3TU

  26/1906/PNH Submitted 21 May 2026 0m away

  58% historically approved · decision due ~16 Jul

  Single storey rear extension with a maximum proposed depth of 6.0m, maximum height of 3.95m and an eaves height of 2.59m

  Awaiting decision Prior approval Extension 4 docs
  Small domestic

• 27 Riverside London NW4 3TU

  26/2497/192 Submitted 2 Jul 2026 7m away

  79% historically approved · decision due ~27 Aug

  Single storey rear extension with 2no. rooflights

  Awaiting decision Lawful development Extension Loft or dormer 3 docs
  Small domestic

• 4 Riverside London NW4 3TX

  26/2911/192 Submitted 6 Aug 2026 34m away

  79% historically approved · decision due ~13 Oct

  Erection of a 2m brick fence to the front of the property. New front paving to garden and driveway

  Awaiting decision
  Small domestic

• 11 Layfield Crescent London NW4 3UJ

  26/2739/PNH Submitted 24 Jul 2026 44m away

  58% historically approved · decision due ~18 Sep

  Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres, following demolition of the existing garage.

  Awaiting decision Prior approval Extension Demolition
  Small domestic

• 4 Riverside London NW4 3TX

  26/0902/192 Submitted 10 Mar 2026 65m away

  79% historically approved · decision due ~5 May

  Single storey rear extension. Changes to fenestration: relocation of front entrance door, enlargement of windows to front and new window to rear elevations

  Awaiting decision Lawful development Extension Windows or glazing 7 docs
  Small domestic

• 4 Riverside London NW4 3TX

  25/4250/HSE Submitted 23 Oct 2025 65m away

  Two storey side and rear extension following demolition of the existing conservatory and patio area. Roof extension involving hip to gable, side/rear dormer window and front and rear facing rooflights. New front sliding access gate

  Refused Householder Extension Loft or dormer +2 15 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