20 Thirlmere Road, Hornsey, London, N10 2DN

1. 21 Apr 2026

   Received by Haringey

2. 18 May 2026

   Decision issued: No Objection

3. 24 Jul 2026

   Added to PlanIndex

Haringey granted permission on 18 May 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.

Applications for works to trees cover protected trees: consent under a tree preservation order, or six weeks notice for trees in a conservation area. More in our guide to planning application types.

• 8 Thirlmere Road, Hornsey, London, N10 2DN

  HGY/2023/0552 Submitted 23 Feb 2023 50 yards away

  T1: Willow (13m): Pollard to 5m from ground level to keep at a size suitable for its location, make ongoing maintenance easier and to allow more light into the garden

  Granted Trees 3 docs

• 10 Thirlmere Road, Hornsey, London, N10 2DN

  HGY/2025/2315 Submitted 27 Aug 2025 50 yards away

  Non-Material Amendment to approved development HGY/2014/2033 (Erection of a single storey rear infill extension) for the enlargement of the rear patio doors/glazing.

  Granted Amendments Extension Windows or glazing 7 docs
  Small domestic

• 5, Kendalmere Close, London, N10 2DF

  HGY/2021/1554 Submitted 14 May 2021 50 yards away

  Erection of a hipped roof dormer in existing rear roof slope and installation of a pitched rooflight in existing rear/side facing roof slope.

  Refused Full applications Loft or dormer 11 docs

• 17 Thirlmere Road, Hornsey, London, N10 2DL

  HGY/2024/2480 Submitted 9 Sep 2024 50 yards away

  Replacement of existing ground floor conservatory with new ground floor extension. Demolition of existing dormer and construction of L-shaped dormer on rear roof.

  Granted Householder Extension Loft or dormer +1 6 docs
  Small domestic

• 21 Thirlmere Road, Hornsey, London, N10 2DL

  HGY/2023/0583 Submitted 4 Apr 2023 50 yards away

  Amalgamation of two flats back into single dwelling does not constitute development. Please refer to application ref: HGY/2008/1719. The application proposal is to confirm that the amalgamation is still lawful

  Granted Lawful development New dwelling 6 docs
  Several homes

• 29 Thirlmere Road, Hornsey, London, N10 2DL

  HGY/2022/4481 Submitted 20 Dec 2022 50 yards away

  Refurbishment of ground floor including demolition of existing canopy/lean-to structures at the rear and side, new glazing arrangement at rear and the addition of a ground floor rear, side-infill extension. Remedial works to front garden walls and construction of a new bin store.

  Granted Householder Extension Demolition +1 10 docs
  Domestic

• HGY/2026/2783 Granted

  26 Palace Road, Hornsey, London, N8 8QJ

  Five Day Notice. The Horse Chestnut at 26 Palace Road N8 8QJ - dead and losing branches - remove.

  Received 8 Oct, published by the council 11 Oct 2026 Trees
• HGY/2026/2786 Awaiting decision

  80C St James's Lane, Hornsey, London, N10 3RD

  Rear Garden: T1: Mature Lime: Approximately 13.00m: Growing between No.53 The Chine and The corner of No.80c St.James Lane. Reduce back to previous and most recent points of reduction, approximately 1.50m-1.70m all round. Raise crown over the boundary fences to clear. Ensure a minimum of 2.00m clearance of the building. Remove major dead wood. Thin crown density by approximately 20%. General maintenance/Control encroachment.

  Received 8 Oct, published by the council 11 Oct 2026 Trees
• HGY/2026/2772 Awaiting decision

  Grove Works, St Anns Road, Tottenham, London, N15 5RP

  Dawn Redwood. Tree T1 on Sketch Plan. Arboriculturist Conclusion "Given the presence of cracks in the wall of adjacent buildings, and the close proximity of the tree to the buildings, it is recommended that T1 is removed to ground level." Engineer's Conclusion "the best course of action to avoid any further movement on the existing building would be to remove the existing tree and underpin the existing foundation"

  Received 7 Oct, published by the council 11 Oct 2026 Trees
• HGY/2026/2780 Awaiting decision

  26 Claremont Road, Hornsey, London, N6 5BY

  1) Eucalyptus in rear garden: Reduce overall crown by up to 3 metres back to previous reduction framework.

  Received 7 Oct, published by the council 11 Oct 2026 Trees
• HGY/2026/2127 Granted

  Pembury House Nursery, Lansdowne Road, Tottenham, London, N17 9XE

  Ginkgo (T1) - fell. Reason: this is a female tree, that drops fruit all over the nursery playground. The children try to eat them, it gets into their clothes, shoes, hands, and all over the class room, creating an extremely unpleasant environment for the children and staff. Replant with another deciduous tree with similar potential size canopy (eg. Norway maple) Sycamore (T2) - Reduce the height of the tree by 4m. Reduce lateral branches in line with this (up to 2.5m). Reason: There is some decay at the base of the tree on the east side, spanning 40% of the circumference of the tree. The bark is flaking from ground level up to 1.5m, and use of the sounding mallet indicates the dysfunctional wood extends at least to the same height. The tree has a full crown, but has had selective branch length reductions in the past. The crown overhangs the nursery playground and neighbouring parking area. Lime x2 (T10 & T11) - Crown raise to 4m, removing epicormic growth. Reason: to remove the branches that touch the shelter to prevent damage.

  Received 24 Jul, published by the council 28 Jul 2026 Trees