23, Cromwell Avenue, London, N6 5HN

1. 17 May 2021

   Received by Haringey

2. 4 Oct 2026

   Added to PlanIndex

Haringey granted permission, 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.

• Ground Floor Flat A, 39 Cromwell Avenue, Hornsey, London, N6 5HN

  HGY/2025/3327 Submitted 1 Dec 2025 50 yards away

  T1 = to crown reduce 1 x Sycamore tree by approx. 2.0/mtrs & sever ivy at the base up to 1.0mtr light access general maintenance neighbouring property encroachment

  Granted Trees 5 docs

• Flat 1D Cromwell Avenue, London N6 5HN

  HGY/2026/1091 Submitted 17 Apr 2026 50 yards away

  Installation of 2no. roof lights on the roof of the two storey rear outrigger.

  Granted Full applications Extension Loft or dormer 11 docs

• 19 Cromwell Avenue, Hornsey, London, N6 5HN

  HGY/2022/4279 Submitted 1 Dec 2022 50 yards away

  Demolition of existing conservatory, erection of single storey side/rear extension and installation of rear bi-fold doors.

  Granted Householder Extension Demolition +1 7 docs
  Small domestic

• 29 Cromwell Avenue, Hornsey, London, N6 5HN

  HGY/2026/0944 Submitted 22 Apr 2026 50 yards away

  Single storey ground floor rear infill extension, rear dormer and re-roofing at the rear, rooflights. Replacement of existing windows, front porch and associated internal and external alterations. (Amended Plans Received)

  Granted Householder Extension Loft or dormer +1 23 docs
  Small domestic

• 58 Cromwell Avenue, Hornsey, London, N6 5HL

  HGY/2024/2760 Submitted 7 Oct 2024 50 yards away

  Erection of rear ground floor extension and replacement of windows

  Granted Householder Extension Windows or glazing 28 docs
  Domestic

• 34 Cromwell Avenue, Hornsey, London, N6 5HL

  HGY/2026/0623 Submitted 5 Mar 2026 50 yards away

  Oak (T1): Reduce to previous points (approx. 1-2m)

  Granted Trees 3 docs

• 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