31, Black Boy Lane, London, N15 3AP

1. 20 Nov 2019

   Received by Haringey

2. 3 Dec 2019

   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

• 12 Black Boy Lane, Tottenham, London, N15 3AR

  HGY/2023/0050 Submitted 9 Jan 2023 40m away

  We consider that a Lawful Development Certificate should be granted for this proposal as we are delivering a regulated service to the community, reduce risk to self and others, increasing job opportunities and providing a safe and stable environment, where young people can address past traumatic experience, develop independent skills while making the transition from adolescent to young adults.

  Refused Lawful development 2 docs

• 43, Etherley Road, London, N15 3AL

  HGY/2019/3156 Submitted 25 Nov 2019 109m away

  Certificate of lawfulness: proposed use

  Withdrawn Lawful development 8 docs

• 10 Clarence Road, Tottenham, London, N15 5BB

  HGY/2024/1325 Submitted 10 May 2024 120m away

  Installation of new external wall to match pre-existing materials

  Granted Full applications 11 docs

• 3F Olive Grove, Tottenham, London, N15 3BJ

  HGY/2026/1810 Submitted 26 Jun 2026 123m away

  Certificate of Lawfulness: Existing use of the property as 3 self-contained flats for more than 4 years.

  Granted Lawful development New dwelling 7 docs

• 51 Station Crescent, Tottenham, London, N15 5BG

  HGY/2023/0198 Submitted 20 Jan 2023 125m away

  Single storey rear and side extension, with pitched and flat roofs and roof light

  Granted Householder Extension Loft or dormer 7 docs
  Small domestic

• Ground Floor Flat A, 28 Etherley Road, Tottenham, London, N15 3AJ

  HGY/2025/2432 Submitted 9 Sep 2025 148m away

  Proposed single-storey rear/side infill extension, new rooflights, replacement windows, and associated upgrades to interior and rear garden.

  Refused Full applications Extension Loft or dormer +1 14 docs
  Small domestic

• 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