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Planning application

HGY/2026/1491

16 Cornwall Road, Hornsey, London, N4 4PH

Granted Haringey Householder planning permission

Proposal

Formation of rear dormer and 3 no. front rooflights

As published by the council, reference HGY/2026/1491

Timeline

Dates from the published record

  1. 4 Jun 2026

    Received by Haringey

  2. 24 Jul 2026

    Added to PlanIndex

  3. 29 Jul 2026

    Decision issued: Approve with Conditions

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/2025/3356 Granted

    10 Cornwall Road, Hornsey, London, N4 4PH

    The proposal replaces the existing timber windows with modern double glazed timber units. Elevations and window schedule appended to this application.

    16 Jan 2026 0m away Full applications
  • HGY/2025/3357 Granted

    11 Cornwall Road, Hornsey, London, N4 4PH

    The proposal replaces the existing timber windows with modern double glazed timber units. Elevations and window schedule appended to this application.

    16 Jan 2026 0m away Full applications
  • HGY/2023/0043 Granted

    28 Lancaster Road, Hornsey, London, N4 4PR

    Erection of a single storey rear/infill extension.

    6 Jan 2023 75m away Householder
  • HGY/2025/3609 Granted

    Flat A, 29 Oakfield Road, Hornsey, London, N4 4NP

    Variation of condition 2 (Approved Plans) and condition 3 (Materials) attached to planning permission ref: HGY/2022/1937; namely to enlarge the approved extension and change the external material on west and north elevations to brickwork.

    28 Jan 2026 84m away Amendments
  • HGY/2026/1525 Granted

    Basement Flat A, 13 Oakfield Road, Hornsey, London, N4 4NH

    T1 Mature Sycamore tree, reduce lateral and vertical growth by 3.0 M approx

    1 Jun 2026 100m away Trees
  • HGY/2026/0166 Decided

    8 Oakfield Road, Hornsey, London, N4 4NL

    Tree removal to prevent further subsidence 1 No Willow 1 No Silver Birch Notes from recent tree survey: "We have seasonal subsidence with the property that is going through the building insurer. On their survey they noted the two trees at the rear and have put into their advice and management plan that these should be removed, as they may be contributing / exacerbating the issue with the subsidence."

    20 Jan 2026 123m 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/2026/2055 Awaiting decision

    20 Bennington Road, Tottenham, London, N17 7NU

    Demolition of the existing rear conservatory and garden shed, and the erection of a single-storey detached outbuilding measuring approximately 41 sqm, for use as a hobby room and private gym ancillary to the main dwellinghouse.

    29 Jul 2026 Householder