First Floor Flat A, 56 Rathcoole Avenue, Hornsey, London, N8 9NA

1. 8 Dec 2025

   Received by Haringey

2. 21 Jan 2026

   Decision issued: Approve with Conditions

3. 10 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.

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

• 56b Rathcoole Avenue, Hornsey, London, N8 9NA

  HGY/2026/0481 Submitted 13 Apr 2026 0m away

  Non-material amendment following a grant of planning permission HGY/2025/3420 to amend the site address on the planning consent from Flat 56a to Flat 56b Rathcoole Avenue N8 9NA.

  Granted Amendments 7 docs

• 19 Rathcoole Avenue, Hornsey, London, N8 9LY

  HGY/2026/2032 Submitted 17 Jul 2026 34m away

  91% historically approved · decision due ~11 Sep

  Replacement of existing timber windows with new double-glazed uPVC windows to front, side and rear elevations and replacement of existing timber rear doors to flats with new uPVC doors.

  Awaiting decision Householder New dwelling Windows or glazing 10 docs
  Domestic

• 35 Rathcoole Avenue, Hornsey, London, N8 9LY

  HGY/2026/1784 Submitted 24 Jun 2026 34m away

  91% historically approved · decision due ~19 Aug

  Replacement of the existing single storey rear extension and replacement of the rear first floor double doors with windows.

  Awaiting decision Householder Extension Windows or glazing 3 docs
  Small domestic

• 45 Rathcoole Avenue, Hornsey, London, N8 9LY

  HGY/2026/2033 Submitted 20 Aug 2026 34m away

  91% historically approved · decision due ~15 Oct

  Replacement of existing windows with new double-glazed uPVC windows to front, side and rear elevations, and replacement of existing timber rear doors to flats with new uPVC doors.

  Awaiting decision Householder New dwelling Windows or glazing 17 docs
  Domestic

• 35 Rathcoole Avenue, Hornsey, London, N8 9LY

  HGY/2026/2179 Submitted 31 Jul 2026 34m away

  Certificate of Lawfulness (Proposed Use): Outrigger roof extension.

  Granted Lawful development Extension 5 docs

• Flat A, 1 Rathcoole Avenue, Hornsey, London, N8 9LY

  HGY/2024/1229 Submitted 9 May 2024 34m away

  Approval of condition 1 (Materials) ref: HGY/2023/1449

  Withdrawn Conditions 4 docs

• 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