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Planning application

HGY/2026/0919

20 Birchwood Avenue, Hornsey, London, N10 3BE

Granted Haringey Householder planning permission

Proposal

Demolition of existing conservatory and erection of a single storey rear extension.

As published by the council, reference HGY/2026/0919

Timeline

Dates from the published record

  1. 20 Apr 2026

    Received by Haringey

  2. 10 Jul 2026

    Decision issued: Approve with Conditions

  3. 24 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About householder applications

How this application type works

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

Nearby applications

Within 500 metres

  • HGY/2025/3527 Granted

    19 Birchwood Avenue, Hornsey, London, N10 3BE

    Erection of single-storey rear extension; new rooflight on the front roof slope; solar photovoltaic panels; upgrade or replacement of existing fenestration with double-glazed units; installation of an air source heat pump in rear garden.

    19 Dec 2025 0m away Householder
  • HGY/2026/0331 Granted

    32 Birchwood Avenue, Hornsey, London, N10 3BE

    Rear garden: Plum (T1) - reduce back to previous cuts, remove three low branches over client’s garden. Amalanchier (T2) - reduce by 1.5m. Reason: to allow more light into the garden.

    6 Feb 2026 0m away Trees
  • HGY/2023/0483 Granted

    23 Birchwood Avenue, Hornsey, London, N10 3BE

    Plum (T1) - Reduce height down to 2m above the fence. The tree blocks a lot of light and mostly overhangs the neighbours garden.

    20 Feb 2023 0m away Trees
  • HGY/2023/0086 Granted

    34 Birchwood Avenue, Hornsey, London, N10 3BE

    Demolition of existing rear dormer and replacement with larger rear dormer extension and the addition of two new rooflights to the front roof slope.

    11 Jan 2023 0m away Householder
  • HGY/2026/0765 Granted

    17 Firs Avenue, Hornsey, London, N10 3LY

    SG1 Privet, Holly, Laurel, Dog rose, Choisya (height: 1.9m, distance to damage: 3m) Remove close to ground level and treat stumps with herbicide to inhibit regrowth.

    18 Mar 2026 46m away Trees
  • HGY/2026/0114 Granted

    6 Firs Avenue, Hornsey, London, N10 3LY

    T1 - eucalyptus tree (9m) - reduce height by approximately 2m and remove two lowest branches. T2 - four pleached hornbeam trees (5m) - reduce branches overhanging garden by approximately 1m. Front garden- T3 - birch tree (12m) - reduce height by approximately 3m and reduce branches away from house by approximately 2m.

    15 Jan 2026 46m away Trees

In Haringey

  • HGY/2026/1575 Granted

    48 Richmond Road, Tottenham, London, N15 6QB

    Construction of single storey side infill extension, together with the installation of a Sukkah roof roof.

    11 Jun 2026 Householder
  • HGY/2026/1504 Granted

    19 Bromley Road, Tottenham, London, N17 0AR

    Ground floor wraparound extension to a end of terrace house.

    24 Jun 2026 Householder
  • HGY/2026/1947 Awaiting decision

    6 Umfreville Road, Hornsey, London, N4 1SB

    Roof extension including above existing outrigger, to create two new habitable rooms and a shower room. Proposal includes new front facing turret in the style of an original feature, with a total of 3 Velux style rooflights to the front elevation and 1 flat rooflight.

    30 Jul 2026 Householder
  • HGY/2026/0798 Granted

    Flat 2, Wren View, Hornsey Lane, Hornsey, London, N6 5LH

    Replacement windows to the rear facing studio flat.

    20 Mar 2026 Householder
  • HGY/2026/1491 Granted

    16 Cornwall Road, Hornsey, London, N4 4PH

    Formation of rear dormer and 3 no. front rooflights

    4 Jun 2026 Householder