100 Mattison Road, Hornsey, London, N4 1BE

1. 10 Dec 2025

   Received by Haringey

2. 27 Feb 2026

   Decision issued: Approve with Conditions

3. 24 Jul 2026

   Added to PlanIndex

Haringey granted permission on 27 February 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.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

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

  HGY/2024/2942 Submitted 25 Oct 2024 50 yards 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 50 yards away

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

  Granted Full applications Extension 7 docs
  Small domestic

• Ground Floor Flat, 108, Mattison Road, London, N4 1BE

  HGY/2021/1995 Submitted 1 Jul 2021 50 yards away

  Erection of single-storey wraparound extension

  Granted Full applications Extension 11 docs
  Small domestic

• First Floor Flat, 97 Mattison Road, Hornsey, London, N4 1BQ

  HGY/2025/3143 Submitted 12 Dec 2025 50 yards away

  Loft extension including the erection of a rear dormer, front rooflights and rear roof terrace.

  Granted Full applications Extension Loft or dormer 11 docs

• 91 Pemberton Road, Hornsey, London, N4 1AY

  HGY/2026/2411 Submitted 28 Aug 2026 100 yards away

  91% historically approved · decision due ~23 Oct

  Single storey side infill extension with 3 no. rooflights

  Awaiting decision Householder Extension Loft or dormer 7 docs
  Small domestic

• 26B Grand Parade, Tottenham, London, N4 1LG

  HGY/2026/0443 Submitted 18 Feb 2026 100 yards away

  Certificate of lawfulness: existing use of the flat as a small 3-bedroom HMO (Class C4 Use).

  Refused Lawful development 18 docs

• HGY/2026/2282 Awaiting decision

  77 Falkland Road, Hornsey, London, N8 0NS

  Single storey side and rear extension.

  Received 14 Sep, published by the council 17 Sep 2026 Householder
• HGY/2026/2059 Granted

  21 Shanklin Road, Hornsey, London, N8 8TJ

  Single Storey Rear Extension

  Received 20 Jul, published by the council 10 Aug 2026 Householder
• HGY/2026/2162 Granted

  71 Fairfax Road, Hornsey, London, N8 0NH

  Erection of L-shaped rear dormer; erection of single storey rear extension; 2 no. front roof lights.

  Received 30 Jul, published by the council 10 Aug 2026 Householder
• HGY/2026/1895 Granted

  396 St Anns Road, Tottenham, London, N15 3ST

  Erection of single storey side infill extension, formation of dormer window and insertion of 4 nos. rooflights (3no. front facing and 1no. rear facing).

  Received 17 Jul, published by the council 24 Jul 2026 Householder
• HGY/2026/1959 Granted

  10 Roseberry Gardens, Tottenham, London, N4 1JJ

  Erection of a single storey rear and side wraparound extension, formation of dormer window and insertion of 3 nos. rooflights to front roof slope (amended).

  Received 17 Jul, published by the council 24 Jul 2026 Householder