25, Grove Road, London, N15 5HJ

1. 1 Jun 2021

   Received by Haringey

2. 19 Aug 2021

   Decision issued: Approve with Conditions

3. 22 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

• 26-28, Grove Road, London, N15 5HJ

  HGY/2021/2055 Submitted 1 Jul 2021 18m away

  Variation of condition 2 of planning permission HGY/2018/1335 for Erection of two storey rear addition to rear outrigger and single storey side return extension to extend 2 no. flats, namely to amend the approved fenestration.

  Granted Amendments New dwelling Extension +1 14 docs
  Several homes

• 26-28 Grove Road, Tottenham, London, N15 5HJ

  HGY/2025/3188 Submitted 19 Nov 2025 18m away

  Variation of condition 2 (approved plans) attached to planning permission HGY/2025/0209; namely to include an additional rear window to the roof extension

  Granted Amendments Extension Windows or glazing 7 docs

• 11 Lydford Road, Tottenham, London, N15 5PX

  HGY/2025/2548 Submitted 19 Sep 2025 54m away

  Certificate of lawfulness of proposed use: Erection of the rear L-shaped dormer above main roof and outrigger and insertion of 2no. front rooflights on main roof.

  Granted Lawful development Extension Loft or dormer 9 docs

• 25 Cissbury Road, Tottenham, London, N15 5PU

  HGY/2025/2459 Submitted 30 Sep 2025 79m away

  Erection of a single storey side infill ground floor extension

  Granted Householder Extension 10 docs
  Small domestic

• 17 Cissbury Road, Tottenham, London, N15 5PU

  HGY/2026/0032 Submitted 8 Jan 2026 79m away

  Certificate of Lawfulness for proposed rear dormer and outrigger extensions to facilitate loft conversion

  Granted Lawful development Extension Loft or dormer 7 docs

• 11 Cissbury Road, Tottenham, London, N15 5PU

  HGY/2026/1463 Submitted 22 May 2026 79m away

  Certificate of lawfulness for the erection of a rear dormer and roof extension including a Juliet balcony, and the insertion of 2x front and 1x rear rooflight. - proposed use

  Granted Lawful development Extension Loft or dormer 8 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