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.

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

  HGY/2021/1634 Submitted 25 May 2021 43m 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 44m 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 44m 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 75m 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 75m away

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

  Granted Full applications Windows or glazing 11 docs

• 21 Pemberton Road, Hornsey, London, N4 1AX

  HGY/2026/1082 Submitted 16 Apr 2026 104m away

  Addition of dormer extension and rooflights

  Refused Full applications Extension Loft or dormer 10 docs

• HGY/2026/1488 Granted

  203-209 Muswell Hill Broadway, Hornsey, London, N10 3RQ

  Installation of defibrillator and bleed kit cabinets to external wall of Nationwide Building Society branch

  10 Jul 2026 Full applications
• HGY/2026/2208 Awaiting decision

  21 The Grove Lynton Road, Hornsey, London, N8 8ST

  Increase the height of the embrasures of the parapet wall gutters throughout. Supply and install 140mm of insulation into the parapet gutter. Install a metal capping – by bauder on the top of the parapet wall. New roof covering – supply and install new tile roof covering. New tiles to be Marley Wessex Smooth Grey.

  4 Sep 2026 Full applications
• HGY/2026/2340 Awaiting decision

  Rowan, Muswell Road, Hornsey, London, N10 2BX

  The riser team is required to run a new inlet pipe from the isolation valve, extending approximately 5m to supply the new meter boxes, which will be installed at the front of the building.

  4 Sep 2026 Full applications
• HGY/2026/2284 Awaiting decision

  10 & 12 Gladesmore Road, London, N15 6TB

  Erection of first floor extensions to the rear elevations of Nos. 10 and 12 Gladesmore Road and the alteration of their ground floor rear fenestration.

  3 Sep 2026 Full applications
• HGY/2026/2062 Awaiting decision

  165 Priory Road, Hornsey, London, N8 8NB

  Change of use from upper floor residential unit into a 6-persons House in Multiple Occupation (HMO), with associated cycle and bin stores in rear courtyard.

  2 Sep 2026 Full applications