91 Pemberton Road, Hornsey, London, N4 1AY

1. 28 Aug 2026

   Received by Haringey

2. 7 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 23 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Haringey took a median of 53 days over the applications it decided in the last year.

This application is with Haringey for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

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, 108, Mattison Road, London, N4 1BE

  HGY/2021/1995 Submitted 1 Jul 2021 74m away

  Erection of single-storey wraparound extension

  Granted Full applications Extension 11 docs
  Small domestic

• Flat B, 91 Warham Road, Hornsey, London, N4 1AS

  HGY/2026/1314 Submitted 8 May 2026 76m away

  Erection of rear dormer roof and outrigger extension with associated rear roof terrace and increase in ridge height to align with neighbouring property, along with associated alterations and refurbishment of the property.

  Granted Householder Extension Loft or dormer +1 7 docs
  Domestic

• First Floor Flat, 108 Mattison Road, Hornsey, London, N4 1BE

  HGY/2024/2942 Submitted 25 Oct 2024 79m away

  Erection of extension to existing rear dormer width, replacement of the external rear façade with timber cladding, replacement of existing patio doors with double glazed units and modification and replacement of existing roof lights with the reduction of 6 rooflights to 5.

  Granted Full applications Extension Loft or dormer +1 12 docs

• Flat A, 110 Mattison Road, Hornsey, London, N4 1BE

  HGY/2024/2928 Submitted 24 Oct 2024 79m away

  Proposed erection of a single storey ground floor side to rear wraparound extension.

  Granted Full applications Extension 7 docs
  Small domestic

• 100 Mattison Road, Hornsey, London, N4 1BE

  HGY/2025/3051 Submitted 10 Dec 2025 79m away

  Erection of a single storey rear wraparound extension to the ground floor flat and related works.

  Granted Householder Extension 9 docs
  Small domestic

• First And Second Floor Flat, 505 Green Lanes, Hornsey, London, N4 1AL

  HGY/2022/4190 Submitted 22 Nov 2022 83m away

  Change of use from C3 to C4 (HMO 6 Person)

  Withdrawn Full applications 8 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