Flat B, 33 Mattison Road, Hornsey, London, N4 1BG

1. 16 Feb 2026

   Received by Haringey

2. 10 Apr 2026

   Decision issued: Approve with Conditions

3. 10 Aug 2026

   Added to PlanIndex

Haringey granted permission on 10 April 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 21 Mattison Road, Hornsey, London, N4 1BG

  HGY/2026/2579 Submitted 15 Sep 2026 50 yards away

  91% historically approved · decision due ~10 Nov

  Erection of a single-storey partial side extension including the creation of a lightwell and refurbishment of the ground-floor rear elevation; construction of a rear dormer including the installation of 3x front/1x rear rooflights and construction of a second-floor outrigger roof extension, including associated roof terrace.

  Awaiting decision Householder Extension Loft or dormer 17 docs
  Small domestic

• Flat B, 32, Mattison Road, London, N4 1BD

  HGY/2021/1634 Submitted 25 May 2021 50 yards away

  Loft conversion with rear dormer extension (AMENDED DESCRIPTION)

  Granted Full applications Extension Loft or dormer 10 docs

• 9 Duckett Road, Hornsey, London, N4 1BJ

  HGY/2023/0052 Submitted 9 Jan 2023 50 yards away

  Replacement of two existing ground floor Windows on the rear elevation with glazed doors; the replacement of one existing ground floor Window on the side elevation with a glazed fixed panel; and the addition of a cast iron staircase to rear elevation.

  Granted Lawful development Windows or glazing 6 docs

• Ground Floor Flat B, 45 Duckett Road, Hornsey, London, N4 1BJ

  HGY/2024/2395 Submitted 30 Aug 2024 50 yards away

  Certificate of lawfulness for the existing use as dwellinghouse within Use Class C3(C)

  Refused Lawful development 6 docs
  Domestic

• 10 Duckett Road, Hornsey, London, N4 1BN

  HGY/2024/2482 Submitted 9 Sep 2024 100 yards away

  Replacement of existing timber windows and rear door with uPVC units

  Granted Full applications Windows or glazing 12 docs

• 20 Duckett Road, Hornsey, London, N4 1BN

  HGY/2025/3360 Submitted 3 Dec 2025 100 yards away

  Replacement of existing timber windows with modern double glazed uPVC units.

  Granted Full applications Windows or glazing 11 docs

• HGY/2026/2289 Granted

  William Atkinson House, Beaufoy Road, Tottenham, London, N17 8AE

  Removal of the existing glazed shelters on deck access/walkway entrances to all blocks and the replacement of all existing timber balustrades with new metal railing balustrades.

  Received 14 Aug, published by the council 22 Aug 2026 Full applications
• HGY/2026/2656 Awaiting decision

  1 Library Court, 391 High Road, Tottenham, London, N17 6QN

  Replacement of the timber front and side elevation windows with double glazed 'slimline' timber windows with vertical sliding sash and casement windows; timber windows on the rear elevation replaced with uPVC casement windows; Replacement of French Doors with double-glazed timber French doors; Rear exit door replaced with double-glazed uPVC door.

  Received 7 Oct, published by the council 11 Oct 2026 Full applications
• HGY/2026/2479 Granted

  First Floor Flat B, 21 Woodside Road, Wood Green, London, N22 5HP

  Erection of rear dormer, installation of 2 front rooflights

  Received 4 Sep, published by the council 10 Sep 2026 Full applications
• HGY/2026/1240 Granted

  92 The Avenue, Tottenham, London, N17 6TD

  Change of use from 5 Bed Single Dwelling House (Use Class C3) to 5 Bed House of Multiple Occupation (HMO - Use Class C4) for a maximum of six occupants

  Received 12 May, published by the council 24 Jul 2026 Full applications
• HGY/2026/2577 Awaiting decision

  195 Albert Road, Wood Green, London, N22 7AQ

  Proposed single storey side/rear extension

  Received 7 Oct, published by the council 11 Oct 2026 Full applications