Cornwall House Cornwall Avenue London N3 1LD

1. 21 May 2026

   Received by Barnet

2. 22 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Decision issued: Approve

4. 16 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

This type of application deals with conditions attached to an existing permission, either by supplying the details a condition requires, called discharging it, or by asking to vary or remove one. It does not reopen the principle of the permission itself. Building often cannot lawfully start, or continue past a set stage, until the named conditions are discharged.

More on conditions applications in our guide

• Cornwall House Cornwall Avenue London N3 1LD

  26/0519/LBC Submitted 10 Feb 2026 0m away

  Change of use from doctors surgery to children's day nursery involving internal and external alterations, as well as alterations to doors and windows. Associated alterations to hard and soft landscaping, and provision of cycle, refuse, buggy and toy stores. Installation of 1no. Air Conditioning unit within associated timber enclosure. New access gates, restoration of boundary walls and installation of secondary privacy fencing. Internal alterations including: New internal staircase to replace an existing staircase; Alterations to rear porch; Removal of modern stud wall; Creation of openings in walls; Changes to internal doors; Addition of a dumb waiter between ground floor kitchen and first floor level; Removal of storage cupboards; Removal of secondary internal door to front entrance; Installation of additional WCs (Listed Building Consent)

  Granted Heritage and listed buildings Extension Windows or glazing 21 docs
  Small domestic

• Cornwall House Cornwall Avenue London N3 1LD

  26/0518/FUL Submitted 10 Feb 2026 0m away

  Change of use from doctors surgery to children's day nursery involving internal and external alterations, as well as alterations to doors and windows. Associated alterations to hard and soft landscaping, and provision of cycle, refuse, buggy and toy stores. Installation of 1no. Air Conditioning unit within associated timber enclosure. New access gates, restoration of boundary walls and installation of secondary privacy fencing

  Granted Full applications Windows or glazing 22 docs

• Cornwall House Cornwall Avenue London N3 1LD

  26/1879/CON Submitted 19 May 2026 9m away

  Submission of details of conditions 3 (Demolition and Construction Management Plan) 05 (Boiler Information) 10 (Noise Management Plan) 12 (Travel Plan) 13 (Materials) 14 (Refuse Enclosures) 15 (Cycle Storage) 20 (Biodiversity) 21 (Landscaping) 22 (External Storage Details) 23 (External Lighting) 24 (Boundary Treatments) and 25 (Kitchen Vent Details) pursuant to planning permission 26/0518/FUL dated 13/02/2026

  Granted Conditions Demolition 19 docs

• 39 Cornwall Avenue London N3 1LG

  26/3192/HSE Submitted 1 Sep 2026 116m away

  77% historically approved · decision due ~27 Oct

  New front porch

  Awaiting decision Householder Extension
  Small domestic

• 32 Cornwall Avenue London N3 1LG

  26/2627/191 Submitted 14 Jul 2026 116m away

  79% historically approved · decision due ~1 Oct

  Conversion of part of the 1st floor and 2nd floor to create 1no. self-contained residential dwelling (Use Class C3)

  Awaiting decision
  Domestic

• 3A Long Lane London N3 2PR

  26/1869/CON Submitted 19 May 2026 126m away

  Submission of details of conditions 4 (Refuse and recycling) 5 (Cycle parking/storage) pursuant to planning permission 24/3889/FUL dated 22/07/2024

  Granted Conditions 3 docs

• 26/0694/CON Granted

  Plot 59 (Main Energy Centre) Railway Street Brent Cross Cricklewood Regeneration Area North West London

  Submission of detail pursuant to Conditions 8.3 and 28.1 (Construction Environmental Management Plan) in relation to Plot 59 (Main Energy Centre) within the Phase 5A sub-phase of planning permission F/04687/13 dated 23/07/2014 for the comprehensive mixed-use redevelopment of the Brent Cross Cricklewood Regeneration Area.

  23 Feb 2026 Conditions
• 26/2097/S73 Granted

  26 Grants Close London NW7 1DD

  Variation of condition 1 (Approved Plans) of planning permission reference 23/1897/HSE dated 12/07/2023 for 'Single storey side and rear extension with decking area and access steps following demolition of conservatory and garage. First floor rear extension. New front porch. Erection of outbuilding/garage in rear garden.' Variation to include: Alterations to the side extension footprint; Increase in the width of the first floor extension. Variations to the layout and increased depth to outbuilding. (Amended Description and Plans)

  5 Jun 2026 Conditions
• 26/2226/S73 Granted

  Barnet Lawn Tennis Club Gloucester Road Barnet EN5 1RS

  Variation of condition 1 (Approved Plans) and removal of condition 4 (Floodlighting) of planning permission reference B/02437/11 dated 09/08/11 for 'Installation of floodlighting to court 1.' Variation to include replacement of existing halide floodlighting with LED floodlighting

  15 Jun 2026 Conditions
• 26/2316/CON Granted

  546 - 548 Finchley Road London NW11 8DD

  Submission of details of condition 3 (Materials), 4 (Levels) and 11 (Basement Access) pursuant to planning permission 25/3867/FUL dated 21/05/2026

  18 Jun 2026 Conditions
• 26/2916/CON Awaiting decision

  53A Oakleigh Park North London N20 9AT

  Submission of details of condition 5 (Levels) 6 (Tree Protection and Method Statement) 7 (Foundations) pursuant to planning permission 25/4907/HSE dated 26/02/2026

  6 Aug 2026 Conditions