23 Coniston Road, Hornsey, London, N10 2BL

1. 22 Oct 2025

   Received by Haringey

2. 15 Dec 2025

   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

• Ground Floor Flat, 21 Coniston Road, Hornsey, London, N10 2BL

  HGY/2026/0134 Submitted 12 Feb 2026 0m away

  Erection of single storey ground floor rear extension

  Granted Householder Extension 15 docs
  Small domestic

• 41 Coniston Road, Hornsey, London, N10 2BL

  HGY/2023/0911 Submitted 30 Mar 2023 0m away

  T1 - Willow tree (7m) - reduce overhanging branches back to boundary, approximately 2m reduction.

  Granted Trees 4 docs

• 25 Coniston Road, Hornsey, London, N10 2BL

  HGY/2026/0165 Submitted 20 Jan 2026 0m away

  Formation of a vehicle crossover with driveway accessing from the front of the property.

  Refused Householder 12 docs
  Domestic

• Ground Floor Flat, 41 Coniston Road, Hornsey, London, N10 2BL

  HGY/2026/2098 Submitted 22 Jul 2026 0m away

  91% historically approved · decision due ~16 Sep

  Erection of single storey rear/side extension and associated internal alterations to a garden flat.

  Awaiting decision Householder Extension 5 docs
  Small domestic

• 28 Coniston Road, Hornsey, London, N10 2BP

  HGY/2026/1561 Submitted 6 Jul 2026 43m away

  New window to the front bay at basement light well level, new bin store, demolition of existing garden wall, new stair down to basement and new store room.

  Granted Householder Demolition Windows or glazing 11 docs
  Domestic

• 2 Coniston Road, Hornsey, London, N10 2BP

  HGY/2025/2705 Submitted 6 Oct 2025 43m away

  1,2,3,4) Silver birch x 4 Height reduce 3 metre Side reduce 1 metre

  Granted Trees 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