26/1000/192

1. 16 Mar 2026

   Received by Barnet

2. 17 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 19 Mar 2026

   Decision issued: Lawful

4. 25 Jul 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

• 26/1742/HSE Awaiting decision

  144 Hendon Lane London N3 3PS

  Two storey rear extension alterations to the existing raised patio area and access steps. Single storey front infill extension

  11 May 2026 5m away Householder
• 26/1158/HSE Awaiting decision

  22 Waverley Grove London N3 3PX

  Single storey side/rear extension following demolition of the existing conservatory. Alteration to the existing patio area. Conversion of the existing garage into habitable room, insertion of window to replace the garage door

  26 Mar 2026 99m away Householder
• 26/2799/CON Awaiting decision

  31 Allandale Avenue London N3 3PY

  Submission of details of condition 7 (Levels) 8 (Excavation for services) 9 (Tree Protection & Method Statement) 10 (Details of Foundations) pursuant to planning permission 26/1837/HSE dated 07/07/2026

  29 Jul 2026 224m away Conditions
• 26/0944/HSE Granted

  31 Allandale Avenue London N3 3PY

  Two storey side and rear extension with rear balcony with associated privacy screen and balustrade. Insertion of 3no. front facing rooflights.

  12 Mar 2026 259m away Householder
• 26/1982/CON Awaiting decision

  31 Allandale Avenue London N3 3PY

  Submission of details of condition 7 (Levels) 8 (Excavation for Services) 9 (Tree Protection & Method Statement) 10 (Details of Foundations) pursuant to planning permission 26/0944/HSE dated 05/05/2026

  28 May 2026 259m away Conditions
• 26/1837/HSE Awaiting decision

  31 Allandale Avenue London N3 3PY

  Two storey side and rear extension with rear balcony with associated privacy screen and balustrade. Insertion of 3no. front facing rooflights

  15 May 2026 259m away Householder

• 26/2791/192 Awaiting decision

  37 Wykeham Road London NW4 2SS

  Roof extension involving box dormer infill to second floor balcony area and 1no. side facing window to both elevations (amended description)

  29 Jul 2026 Lawful development
• 26/2783/192 Awaiting decision

  106 Longland Drive London N20 8HL

  Roof extension involving hip to gable, rear dormer window with juliette balcony and new side gable windows. Erection of a rear outbuilding

  28 Jul 2026 Lawful development
• 26/2600/192 Decided

  49 Brent View Road London NW9 7EJ

  Roof extension involving rear dormer window and 3no. front facing rooflights

  10 Jul 2026 Lawful development
• 26/2737/192 Awaiting decision

  22 Sunningfields Road London NW4 4RL

  Erection of a rear outbuilding

  24 Jul 2026 Lawful development
• 26/2747/192 Awaiting decision

  2 Orchard Crescent Edgware HA8 9PN

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

  24 Jul 2026 Lawful development