10 Thirlmere Road, Hornsey, London, N10 2DN

1. 27 Aug 2025

   Received by Haringey

2. 24 Sep 2025

   Decision issued: Approve

3. 10 Aug 2026

   Added to PlanIndex

Haringey granted permission on 24 September 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.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. 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

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

  HGY/2026/1124 Submitted 21 Apr 2026 50 yards away

  4 large conifers on the back boundary of our garden. One is dead two further are dying. We would like to remove all 4 trees taking them to ground level.

  Granted Trees 3 docs

• 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/2026/1571 Granted

  2 Addington Road, Hornsey, London, N4 4RP

  Variation of condition (2) of planning premission ref: HGY/2026/0255 (approved plans); namely (i) addition of a second zinc-clad dormer at the rear corner, matching the approved dormer and resolving an existing non-original, failing flat-roofed junction; (ii) a small high-level clerestory window to the rear elevation at ground floor; and (iii) the repositioning of one of the two approved Velux-type rooflights from the rear roofslope to the east roofslope

  Received 5 Aug, published by the council 10 Aug 2026 Amendments
• HGY/2026/2143 Granted

  98 High Street, Hornsey, London, N8 7NT

  Variation to description and condition 2 (approved plans) to reflect the changes to façade and the addition of a top floor flat. The description shall read: "Construction of a 2-bedroom mews dwelling (Use Class C3); reconfiguration of 2 existing flats (UseClass C3); conversion of loft into a self-contained flat (Use Class C3); and upgrades to the façade." to ref: HGY/2024/2879

  Received 5 Aug, published by the council 10 Aug 2026 Amendments
• HGY/2026/2702 Awaiting decision

  Public House, 492 West Green Road, Tottenham, London, N15 3DA

  Non-material amendment to planning permission HGY/2024/1971 to increase the approved roof height by approximately 0.20m, and increase chimney heights by approximately 0.23m.

  Received 2 Oct, published by the council 11 Oct 2026 Amendments
• HGY/2026/2053 Granted

  Unit 1, 25-27 Clarendon Road Off Hornsey Park Road, Wood Green, London, N8 0DD

  Non-Material amendment to planning permission (HGY/2024/2279) to amend condition 2 (Approved plans), condition 16 (cycle parking) and conditions 25 (Accessible studio provision)

  Received 20 Jul, published by the council 22 Aug 2026 Amendments
• HGY/2026/2458 Granted

  143 Wightman Road, Hornsey, London, N8 0BB

  Non-Material Amendment to planning permission ref. HGY/2025/3436 granted on 3/2/26 for the installation of a roof terrace to the first floor flat rear roof terrace; namely glazed privacy screen to be replaced with slatted, timber screen

  Received 1 Oct, published by the council 4 Oct 2026 Amendments