21 Elms Avenue, Hornsey, London, N10 2JN

This site has had 2 applications since 2025: 2 approved, 0 refused.

• HGY/2026/1103 Granted

  21 Elms Avenue, Hornsey, London, N10 2JN

  T1 - Horse Chestnut - remove to ground level. Reasons for removal: - Appearance and Scale: Due to its size and overshadowing impact on neighbouring gardens, the tree has been significantly pollarded and lacks a natural form. This has clearly put the tree under stress, as evidenced by epicormic growth around the trunk. Additionally, the tree suffers from leaf miner, which further diminishes its aesthetic value. - Damage to Garden Infrastructure: We have identified cracks in the walls and paving of nearby garden infrastructure, likely caused by the tree's roots. The retaining wall is now being replaced. - Alternative Planting: As part of the garden redesign, we are proposing more appropriately scaled trees to mitigate the loss. In addition to three smaller trees, a Liquidambar will be planted in the same location to provide an attractive range of seasonal colour for the adjoining gardens to enjoy. - Practical Removal: We understand the tree is nearing the end of its life. Given that the street is terraced, the current building works provide a unique opportunity to fell and remove the tree through the house without causing damage.

  Decided 21 May 2026 Trees

1. 19 Aug 2025

   Received by Haringey

2. 14 Oct 2025

   Decision issued: Approve with Conditions

3. 10 Aug 2026

   Added to PlanIndex

Haringey granted permission on 14 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.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 23 Elms Avenue, Hornsey, London, N10 2JN

  HGY/2023/0384 Submitted 8 Feb 2023 0m away

  Rear dormer with Juliette balcony. Side dormer with pitched front roof. Velux roof lights to front roof. Solar Panels to side dormer roof.

  Granted Householder Loft or dormer 12 docs
  Domestic

• 17 Elms Avenue, Hornsey, London, N10 2JN

  HGY/2026/0633 Submitted 5 Mar 2026 0m away

  G1- Ivy and Cypress on left- prune back to boundary starting from mid section of garden steps. T1-Pear tree- crown reduction back to previous pruning points. Remove bulk of Rose leaving main tendrils on tree. T2- Eucalyptus tree- reduce back to bend in trunk.

  Granted Trees 6 docs

• 23 Elms Avenue, Hornsey, London, N10 2JN

  HGY/2023/0707 Submitted 13 Mar 2023 0m away

  Demolition of existing first floor side orangery and single storey ground floor rear extension. New enlarged first floor side orangery. Three storey rear extension with re-alignment of existing roof.

  Refused Householder Extension Demolition 10 docs
  Small domestic

• 21 Elms Avenue, Hornsey, London, N10 2JN

  HGY/2026/1103 Submitted 20 Apr 2026 0m away

  T1 - Horse Chestnut - remove to ground level. Reasons for removal: - Appearance and Scale: Due to its size and overshadowing impact on neighbouring gardens, the tree has been significantly pollarded and lacks a natural form. This has clearly put the tree under stress, as evidenced by epicormic growth around the trunk. Additionally, the tree suffers from leaf miner, which further diminishes its aesthetic value. - Damage to Garden Infrastructure: We have identified cracks in the walls and paving of nearby garden infrastructure, likely caused by the tree's roots. The retaining wall is now being replaced. - Alternative Planting: As part of the garden redesign, we are proposing more appropriately scaled trees to mitigate the loss. In addition to three smaller trees, a Liquidambar will be planted in the same location to provide an attractive range of seasonal colour for the adjoining gardens to enjoy. - Practical Removal: We understand the tree is nearing the end of its life. Given that the street is terraced, the current building works provide a unique opportunity to fell and remove the tree through the house without causing damage.

  Granted Trees 6 docs

• 6 Elms Avenue, Hornsey, London, N10 2JP

  HGY/2024/2991 Submitted 30 Oct 2024 54m away

  Erection of rear extension replacing rear conservatory with two rooflights to the rear extension as well as replacement of three windows on first floor rear façade.

  Granted Householder Extension Loft or dormer +1 11 docs
  Small domestic

• Flat A, 24 Elms Avenue, Hornsey, London, N10 2JP

  HGY/2024/2044 Submitted 23 Jul 2024 54m away

  Installation of external stair, balcony, screening, planters and changes to fenestration.

  Granted Full applications Windows or glazing 17 docs

• HGY/2026/2086 Awaiting decision

  3 Rookfield Avenue, Hornsey, London, N10 3TS

  Installation of photovoltaic (PV) panels on the rear pitched roof.

  4 Sep 2026 Householder
• HGY/2026/0629 Granted

  189 West Green Road, Tottenham, London, N15 5EA

  Construction of Vehicle Crossing including dropped kerb.

  9 Mar 2026 Householder
• HGY/2025/1677 Awaiting decision

  6 Cascade Avenue, Hornsey, London, N10 3PU

  Installation of replacement rear steps connecting the kitchen to the garden

  2 Sep 2026 Householder
• HGY/2026/2219 Awaiting decision

  42 Allison Road, Hornsey, London, N8 0AT

  Single-storey side-return infill extension and installation of AC condenser units.

  1 Sep 2026 Householder
• HGY/2026/2124 Awaiting decision

  68 Downhills Way, Tottenham, London, N17 6BB

  LOFT CONVERSION WITH REAR DORMER AND THREE ROOF LIGHTS ON FRONT ROOF SLOPE

  1 Sep 2026 Householder