28 Allison Road, Hornsey, London, N8 0AT

1. 14 Jul 2026

   Received by Haringey

2. 10 Aug 2026

   Added to PlanIndex

3. 28 Aug 2026

   Decision issued: Approve with Conditions

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.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 78 Allison Road, Hornsey, London, N8 0AT

  HGY/2024/2545 Submitted 16 Sep 2024 0m away

  The proposal replaces the existing timber sash windows with modern Casement UPVC units.

  Granted Full applications Windows or glazing 10 docs

• 42 Allison Road, Hornsey, London, N8 0AT

  HGY/2026/2220 Submitted 5 Aug 2026 0m away

  91% historically approved · decision due ~30 Sep

  Certificate of Lawfulness (proposed) for single-storey rear extension, rear dormer roof extension and rooflights on dormers and front facing roof.

  Awaiting decision Lawful development Extension Loft or dormer 6 docs
  Small domestic

• 70 Allison Road, Hornsey, London, N8 0AT

  HGY/2026/0735 Submitted 16 Mar 2026 0m away

  Rear dormer and outrigger roof extension, rear terrace to outrigger extension and two front rooflights.

  Granted Householder Extension Loft or dormer 14 docs
  Domestic

• 42 Allison Road, Hornsey, London, N8 0AT

  HGY/2026/2219 Submitted 1 Sep 2026 0m away

  91% historically approved · decision due ~27 Oct

  Single-storey side-return infill extension and installation of AC condenser units.

  Awaiting decision Householder Extension 6 docs
  Small domestic

• 28 Allison Road, Hornsey, London, N8 0AT

  HGY/2026/1964 Submitted 13 Jul 2026 0m away

  Certificate of Lawfulness Proposed: Proposed outrigger extension.

  Granted Lawful development Extension 11 docs

• 2 Hewitt Road, Hornsey, London, N8 0BL

  HGY/2025/2412 Submitted 8 Sep 2025 74m away

  Erection of rear dormer, raise ridge height and installation of rooflights on front slope

  Granted Householder Loft or dormer Roofing 11 docs
  Domestic

• HGY/2026/2086 Awaiting decision

  3 Rookfield Avenue, Hornsey, London, N10 3TS

  Installation of photovoltaic (PV) panels on the rear pitched roof.

  4 Sep 2026 Householder
• HGY/2026/0629 Granted

  189 West Green Road, Tottenham, London, N15 5EA

  Construction of Vehicle Crossing including dropped kerb.

  9 Mar 2026 Householder
• HGY/2025/1677 Awaiting decision

  6 Cascade Avenue, Hornsey, London, N10 3PU

  Installation of replacement rear steps connecting the kitchen to the garden

  2 Sep 2026 Householder
• HGY/2026/2219 Awaiting decision

  42 Allison Road, Hornsey, London, N8 0AT

  Single-storey side-return infill extension and installation of AC condenser units.

  1 Sep 2026 Householder
• HGY/2026/2124 Awaiting decision

  68 Downhills Way, Tottenham, London, N17 6BB

  LOFT CONVERSION WITH REAR DORMER AND THREE ROOF LIGHTS ON FRONT ROOF SLOPE

  1 Sep 2026 Householder