341 Green Lanes, Hornsey, London, N4 1DZ

1. 20 Oct 2025

   Received by Haringey

2. 27 Oct 2025

   Decision issued: Approve

3. 10 Aug 2026

   Added to PlanIndex

Haringey granted permission on 27 October 2025, 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 lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• Shop, 335 Green Lanes, Hornsey, London, N4 1DZ

  HGY/2026/2319 Submitted 21 Sep 2026 50 yards away

  83% historically approved · decision due ~16 Nov

  Erection of a single-storey rear extension to the existing commercial premises to provide additional consultation room accommodation, including the installation of two rooflights and associated external alterations.

  Awaiting decision Full applications Extension Loft or dormer 8 docs
  Small domestic

• 339 Green Lanes, Hornsey, London, N4 1DZ

  HGY/2025/3058 Submitted 21 Nov 2025 50 yards away

  Erection of a commercial kitchen extractor system and associated flue.

  Granted Full applications 17 docs

• 42 Lothair Road North, Hornsey, London, N4 1EW

  HGY/2024/2767 Submitted 8 Oct 2024 50 yards away

  Certificate of lawfulness-proposed use for the construction of a rear dormer to the main roof and outrigger roof and insertion of 2 no. rooflights with Juliet balcony.

  Granted Lawful development Extension Loft or dormer 15 docs

• 42 Lothair Road North, Hornsey, London, N4 1EW

  HGY/2024/2675 Submitted 30 Sep 2024 50 yards away

  Erection of single storey extension which extends beyond the rear wall of the original house by 5.5m, for which the maximum height would be 3m and for which the height of the eaves would be 2.8m

  Decided Prior approval Extension 15 docs
  Small domestic

• 44, Lothair Road North, London, N4 1EW

  HGY/2021/1809 Submitted 18 Jun 2021 50 yards away

  Erection of single-storey infill rear extension

  Granted Full applications Extension 8 docs
  Small domestic

• B&Q, Arena Shopping Park, Green Lanes, London N4 1DT

  HGY/2025/2585 Submitted 24 Sep 2025 100 yards away

  Display 4x internally illuminated box signs, 1x set of flat cut letters, 10x panels and 2x new panels on illuminated totem.

  Granted Advertising 5 docs

• HGY/2026/2285 Granted

  13 Woollaston Road, Hornsey, London, N4 1SD

  Certificate of Lawfulness (proposed) for loft conversion with rear dormer extension.

  Received 14 Aug, published by the council 22 Aug 2026 Lawful development
• HGY/2026/2357 Granted

  40 Falmer Road, Tottenham, London, N15 5BA

  Lawful development Certification for proposed erection of rear roof extension and insertion of front rooflight

  Received 21 Aug, published by the council 4 Oct 2026 Lawful development
• HGY/2026/2692 Granted

  125 High Cross Road, Tottenham, London, N17 9NR

  Lawful development: Proposed use for change of use within Class E to a Nail shop (Class E(c)(iii))

  Received 29 Sep, published by the council 4 Oct 2026 Lawful development
• HGY/2026/2637 Granted

  30 Gloucester Road, Tottenham, London, N17 6DH

  Lawful development: Proposed use. Loft conversion including 2x roof lights and L-shaped box dormer to the rear roof slopes with materials to match existing materials on main roof

  Received 21 Sep, published by the council 4 Oct 2026 Lawful development
• HGY/2026/2420 Granted

  50 St Loys Road, Tottenham, London, N17 6UD

  Certificate of Lawfulness: Proposed erection of an L-shaped rear dormer including the insertion of 2nos. front rooflights.

  Received 28 Aug, published by the council 7 Sep 2026 Lawful development