22 Greenfield Drive, Hornsey, London, N2 9AF

1. 17 Jul 2026

   Received by Haringey

2. 26 Aug 2026

   Decision issued: Permitted Development

3. 31 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

• 23 Greenfield Drive, Hornsey, London, N2 9AF

  HGY/2026/1526 Submitted 29 Jun 2026 0m away

  Certificate of Lawfulness (proposed) for porch extension with entrance door, sliding glass door to rear elevation, single rooflight to front main roof, and internal reconfigurations.

  Granted Lawful development Extension Loft or dormer 8 docs
  Small domestic

• 24 Greenfield Drive, Hornsey, London, N2 9AF

  HGY/2026/0517 Submitted 25 Feb 2026 0m away

  Erection of a single-storey rear extension

  Granted Householder Extension 10 docs
  Small domestic

• 19, Greenfield Drive, London, N2 9AF

  HGY/2021/2337 Submitted 12 Aug 2021 4m away

  Non-material amendment following a grant of planning permission ref: HGY/2020/0015 involving alteration to the size of front elevation window.

  Granted Amendments Windows or glazing 5 docs

• 3, Greenfield Drive, London, N2 9AF

  HGY/2019/2791 Submitted 23 Oct 2019 62m away

  Construction of a rear dormer roof extension following removal of existing rear dormer.

  Granted Full applications Extension Loft or dormer 9 docs

• One And A Half, Southern Road, Hornsey, London, N2 9LH

  HGY/2025/3597 Submitted 29 Dec 2025 84m away

  T1 - Hornbeam tree (10m) - reduce crown by approximately 3m and remove deadwood from crown. T2 - Hornbeam tree (8m) - reduce crown by approximately 4m and remove deadwood and ivy from crown. T3 - Holm Oak tree- reduce crown by approximately 3m and remove deadwood and ivy from crown. T4 - Holm Oak tree- reduce crown by approximately 3m and remove deadwood and ivy from crown. T5 - Holm Oak tree- reduce crown by approximately 3m and remove deadwood and ivy from crown.

  Granted Trees 6 docs

• 29 Southern Road, Hornsey, London, N2 9LH

  HGY/2025/2474 Submitted 12 Sep 2025 84m away

  T1: Plum (5m): Reduce height by 1m and shape to prevent failure T2: Cherry (6m): Crown reduce by 1.5m to keep tree at a size suitable for its location and as part of regular maintenance

  Granted Trees 3 docs

• HGY/2026/1951 Granted

  105 Alexandra Road, Wood Green, London, N8 0LG

  Certificate of Lawfulness (existing) for continued use of property as two flats (C3)

  10 Jul 2026 Lawful development
• HGY/2026/2416 Awaiting decision

  Vincent House, 1A Vincent Road, Tottenham, London, N15 3QA

  Certificate of Lawfulness: Existing use of the property as six self-contained flats.

  4 Sep 2026 Lawful development
• HGY/2026/2154 Awaiting decision

  86 Palmerston Road, Wood Green, London, N22 8RF

  Certificate of Lawfulness Existing: Property was converted from a single dwelling house into 3no. self-contained flats in May 2010.

  2 Sep 2026 Lawful development
• HGY/2026/2107 Awaiting decision

  83 Lancaster Road, Hornsey, London, N4 4PL

  Certificate of lawfulness (proposed): rear roof terrace.

  2 Sep 2026 Lawful development
• HGY/2026/2354 Awaiting decision

  118 Philip Lane, Tottenham, London, N15 4JL

  Lawful development: Existing use of first and loft floor levels of No. 118 Philip Lane as two self-contained C3 residential units.

  1 Sep 2026 Lawful development