23 New Park Avenue London N13 5ND

1. 9 May 2022

   Received by Enfield

2. 28 Jun 2022

   Decision issued: Granted

3. 20 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.

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

• 11 Harington Terrace Great Cambridge Road London N18 1JX

  26/02405/FUL Submitted 8 Jun 2026 43m away

  68% historically approved · decision due ~19 Aug

  Change of use from Use Class C3 (dwelling house) to Use Class Sui-Generis (HMO-house in multiple occupation) with 7 bedrooms for up to a maximum of 10 persons, including a single storey rear extension, the provision of cycle and refuse storage.

  Awaiting decision Full applications Extension
  Small domestic

• 11 Harington Terrace Great Cambridge Road London N18 1JX

  26/02305/FUL Submitted 2 Jun 2026 78m away

  Change of use from Use Class C3 (dwelling house) to a Class Sui Generis (HMO - house in multiple occupation) with associated amenity, cycle and refuse storage.

  Granted Full applications 13 docs
  Domestic

• 11 Harington Terrace Great Cambridge Road London N18 1JX

  26/02297/PRH Submitted 2 Jun 2026 78m away

  Single storey rear extension 6m deep x 3m high (3m high to eaves).

  Granted Prior approval Extension 5 docs
  Small domestic

• 19 Rylston Road London N13 5NQ

  26/03668/PRH Submitted 1 Sep 2026 86m away

  78% historically approved · decision due ~27 Oct

  Single storey rear extension 6m deep x 3m high (3m high to eaves).

  Awaiting decision Extension 2 docs
  Small domestic

• 57 New Park Avenue London N13 5ND

  22/01857/CEA Submitted 25 May 2022 102m away

  Outbuilding at rear and front porch.

  Granted Lawful development Extension 8 docs
  Small domestic

• 57 New Park Avenue London N13 5ND

  22/01838/HOU Submitted 24 May 2022 102m away

  First floor rear extension and extension to existing flat roof involving an infill pitched roof.

  Granted Householder Extension 12 docs
  Domestic

• 26/02030/CEU Granted

  13 Glenbrook South Enfield EN2 7HQ

  Existing single storey front, side and rear extension.

  15 May 2026 Lawful development
• 26/01356/CEU Granted

  16 Lowden Road London N9 8RN

  Use of premises as 4no. self-contained flats.

  2 Apr 2026 Lawful development
• 26/01782/CEU Refused

  118 Middleham Road London N18 2SD

  Single storey rear extension.

  1 May 2026 Lawful development
• 26/03337/CEA Awaiting decision

  141 Tottenhall Road London N13 6JA

  Change of use from dwelling house upper floors and outbuildings (Class C3) into a childrens care home (Class C2) to cater for a maximum 4 x children between ages 7-15, supervised by support staff providing 24-hour care.

  6 Aug 2026 Lawful development
• 26/01751/CEU Granted

  2A Elmcroft Avenue London N9 7DL

  Use of property as 2 self contained flats.

  30 Apr 2026 Lawful development