Dyne House, Highgate School, Southwood Lane, London, N6 5EE

1. 16 Jun 2026

   Received by Haringey

2. 29 Jun 2026

   Decision issued: Withdrawn

3. 25 Jul 2026

   Added to PlanIndex

The applicant withdrew this application before Haringey decided it, and is free to submit a revised scheme at any time. 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.

• 6 Southwood Lane, Hornsey, London, N6 5EE

  HGY/2025/0018 Submitted 6 Jan 2025 50 yards away

  T1 - Holly tree - we would like to reduce the tree by about 2-3 metres back to previous points to maintain a balanced shape and bring more light in to the properties and gardens. T2 - Lime tree - we would like to reduce the tree more significantly than the trees have always be done. I have attached a photo indicating the level we would like to reduce it to. It would be reducing it by about 4-5 metres, to points which can maintain a balanced shape. The aim is to bring more light in to the gardens and all the neighbouring gardens as they restrict a lot of light. Maintaining a good shape would still be the main objective whilst bringing more light for all the neighbours. T3- Maple tree - we would like to reduce the tree more significantly than the trees have always be done. I have attached a photo indicating the level we would like to reduce it to. It would be reducing it by about 4-5 metres, to points which can maintain a balanced shape. The aim is to bring more light in to the gardens and all the neighbouring gardens as they restrict a lot of light. Maintaining a good shape would still be the main objective whilst bringing more light for all the neighbours. T4 - Sycamore tree - we would like to reduce the tree more significantly than the trees have always be done. I have attached a photo indicating the level we would like to reduce it to. It would be reducing it by about 4-5 metres, to points which can maintain a balanced shape. The aim is to bring more light in to the gardens and all the neighbouring gardens as they restrict a lot of light. Maintaining a good shape would still be the main objective whilst bringing more light for all the neighbours. T5 - T9 -Lime trees - we would like to reduce the trees more significantly than the trees have always be done. I have attached a photo indicating the level we would like to reduce it to. It would be reducing it by about 4-5 metres, to points which can maintain a balanced shape. The aim is to bring more light in to the gardens and all the neighbouring gardens as they restrict a lot of light. Maintaining a good shape would still be the main objective whilst bringing more light for all the neighbours. T9-T16 - Lime trees - we would like to reduce the smaller Lime trees by about 2-3 metres back to previous reduction points to increase light in to the garden. T17 - Fig tree - we would like to fell the Fig tree which is growing next to the property of number 12 and is causing issues for which a report has been attached.

  Granted Trees 9 docs

• Dyne House, 14 Southwood Lane, Hornsey, London, N6 5EE

  HGY/2024/2130 Submitted 6 Aug 2024 50 yards away

  Works to trees protected by an Area TPO. G1: 5 x Sycamore (16m): Crown thin by 30% and crown lift to 5m to allow more light into 17-19 Kingsley Place, to keep tree at a size suitable for its location and as part of regular maintenance. Trees are located on land adjacent to the Parade Ground behind 17-19 Kingsley Place

  Granted Trees 4 docs

• Dyne House, Southwood Lane, Hornsey, London, N6 5EE

  HGY/2023/0679 Submitted 8 Mar 2023 50 yards away

  98% historically approved · decision due ~3 May

  Listed Building Consent for works to the Island Site including: demolition of existing service block and erection of a replacement part one and part two storey structure, together with associated works.

  Awaiting decision Heritage and listed buildings Demolition 76 docs

• Dyne House, Southwood Lane, Hornsey, London, N6 5EE

  HGY/2023/0328 Submitted 8 Mar 2023 50 yards away

  82% historically approved · decision due ~3 May

  Redevelopment of Dyne House, to include: 1) Retention, refurbishment, extension and basement works to the principal five storey Dyne House structure (plus plant and lift over run); 2) Demolition and redevelopment of the rear extension and associated buildings to the rear, with erection of a new part one and part two storey structure, together with new basement levels; 3) Retention of the Parade Ground open space, with new multi-use surface; 4) Associated improvements to the Island Site access and underground tunnel, including: demolition of existing service block and erection of a replacement part one and part two storey structure; and 5) Associated landscaping and improved provision for emergency services, servicing and disabled parking.

  Awaiting decision Full applications Extension Demolition 203 docs

• 22 Southwood Lane, Hornsey, London, N6 5EE

  HGY/2026/0168 Submitted 20 Jan 2026 50 yards away

  Oak + Maple - Crown reduce the height and spread back to the most historical pruning points (approx. 1.8m height and 1.5m spread) Crown thin/remove smaller branches in the inner canopy Reduce the extremities of branches growing towards the lamppost to give a clearance of 1.0m respectively Remove dead wood 2 x Lime - Crown reduce the height and spread back to the previous pollard points (approx. 2m height and 1.5m spread) leave growth growing laterally along boundary fence to act as screening up to a height of 4.0m-4.5m Remove basal growth Maintenance works in line with good arboricultural practice

  Granted Trees 3 docs
  Small domestic

• Highgate School, North Road, Hornsey, London, N6 4AY

  HGY/2024/2960 Submitted 28 Oct 2024 100 yards away

  T29: Plum (5m): Fell as splitting out

  Granted Trees 3 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