3, Highgate Avenue, London, N6 5RX

This site has had 2 applications since 2021: 2 approved, 0 refused.

• HGY/2021/2201 Granted

  3, Highgate Avenue, London, N6 5RX

  Demolition of rear conservatory and external store and erection of a rear extension at ground floor level with basement level internal refurbishment.

  Decided 1 Sep 2021 Full applications

1. 12 Jul 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.

• 3 Highgate Avenue, Hornsey, London, N6 5RX

  HGY/2025/3106 Submitted 12 Nov 2025 50 yards away

  Small Leyland Cypress at rear of garden: Poor form, low amenity value: Remove to ground level and replace with more suitable species.

  Granted Trees 3 docs

• 2, Highgate Avenue, London, N6 5RX

  CON/2021/0218 Submitted 10 May 2021 50 yards away

  Sycamore Tree (T1): Reduce to previous points of reduction to reduce shading 2x London Plane Trees (T2 & T3): Reduce to previous points of reduction to reduce shading

  Granted Trees 5 docs

• 2, Highgate Avenue, London, N6 5RX

  CON/2021/0254 Submitted 1 Jun 2021 50 yards away

  Sycamore Tree (T1): Reduce to previous points of reduction to reduce shading 2x London Plane Trees (T2 & T3): Reduce to previous points of reduction to reduce shading

  Granted Trees 5 docs

• 5 Highgate Avenue, Hornsey, London, N6 5RX

  HGY/2026/0360 Submitted 11 Feb 2026 50 yards away

  Variation of condition 2 (Approved Plans) attached to planning permission ref: HGY/2025/1628 to increase the depth and install a sedum roof to single storey rear extension.

  Granted Amendments Extension 10 docs
  Small domestic

• 7 Highgate Avenue, Hornsey, London, N6 5RX

  HGY/2026/0071 Submitted 2 Feb 2026 50 yards away

  Variation of condition 2 (approved plans) and condition 3 (materials) attached to planning permission HGY/2024/2065 to amend the approved scheme to increase the rear extension depth to 4m.

  Granted Amendments Extension 22 docs

• 7 Highgate Avenue, Hornsey, London, N6 5RX

  HGY/2024/2065 Submitted 2 Sep 2024 50 yards away

  Erection of a two-storey rear extension at lower ground (Flat A) and upper ground (Flat B), with secondary lightwell and small side extension at lower ground.

  Granted Full applications Extension 30 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