4 Redston Road, Hornsey, London, N8 7HJ

1. 16 Oct 2024

   Received by Haringey

2. 13 Dec 2024

   Decision issued: Permitted Development

3. 25 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

• 2 Redston Road, Hornsey, London, N8 7HJ

  HGY/2024/2857 Submitted 16 Oct 2024 0m away

  Construction of a dormer and hip-to-gable roof extension to the main rear roof and two-storey rear extension roof, including a rear window, Juliet balcony, and two Velux roof lights on the front slope (Certificate of Lawfulness - Proposed Use)

  Granted Lawful development Extension Loft or dormer +1 16 docs

• Safestore, 118, Priory Road, London, N8 7HP

  HGY/2021/1977 Submitted 30 Jun 2021 96m away

  Replacement advertisements

  Granted Advertising 9 docs

• 106 Priory Road, Hornsey, London, N8 7HR

  HGY/2023/0675 Submitted 9 Mar 2023 110m away

  Proposed Installation of 3 x AC units to existing family dwelling above the flat roof on side flank wall. (Retrospective application)

  Refused Householder 14 docs
  Domestic

• Flat 6, 1 Alexandra Palace Way, London, N8 7FW

  HGY/2024/1301 Submitted 8 May 2024 131m away

  Certificate of lawfulness for the existing use of the second floor of the building (1 Alexandra Palace Way) as two separate self-contained flats (Flats 5 & 6) within the C3 Use Class.

  Granted Lawful development New dwelling 2 docs

• 49 Warner Road, Hornsey, London, N8 7HB

  HGY/2026/0954 Submitted 4 May 2026 137m away

  Construction of a terrace over first floor flat roof to be access from the loft room

  Granted Householder 11 docs
  Domestic

• 41 Warner Road, Hornsey, London, N8 7HB

  HGY/2025/2287 Submitted 28 Aug 2025 137m away

  Hip to gable roof extension including 2 roof windows to front elevation, rear dormer extension with terrace over rear flat roof.

  Granted Householder Extension Loft or dormer +1 15 docs
  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