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Planning application

HGY/2026/0521

9 Cavendish Road, Hornsey, London, N4 1RP

Granted Haringey Householder planning permission

Proposal

Erection of a single storey rear extension.

As published by the council, reference HGY/2026/0521

Timeline

Dates from the published record

  1. 26 Mar 2026

    Received by Haringey

  2. 29 May 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/2024/2482 Granted

    10 Duckett Road, Hornsey, London, N4 1BN

    Replacement of existing timber windows and rear door with uPVC units

    9 Sep 2024 44m away Full applications
  • HGY/2023/0052 Granted

    9 Duckett Road, Hornsey, London, N4 1BJ

    Replacement of two existing ground floor Windows on the rear elevation with glazed doors; the replacement of one existing ground floor Window on the side elevation with a glazed fixed panel; and the addition of a cast iron staircase to rear elevation.

    9 Jan 2023 73m away Lawful development
  • HGY/2024/2395 Refused

    Ground Floor Flat B, 45 Duckett Road, Hornsey, London, N4 1BJ

    Certificate of lawfulness for the existing use as dwellinghouse within Use Class C3(C)

    30 Aug 2024 73m away Lawful development
  • HGY/2026/2000 Awaiting decision

    Flat 1, 47 Burgoyne Road, Hornsey, London, N4 1AA

    Erection of single storey wraparound extension; associated internal changes converting one bedroom unit into a two bedroom unit

    15 Jul 2026 110m away Full applications
  • HGY/2025/2484 Awaiting decision

    Plot rear of 68 & 70 Wightman Road, Hornsey, London, N4 1RW

    Redevelopment of unused rear land and existing building into a two-storey dwelling

    10 Oct 2025 111m away Full applications
  • HGY/2026/1255 Awaiting decision

    Ground Floor Flat, 17 Wightman Road, Hornsey, London, N4 1RQ

    Enlargement of front lightwell, installation of new front basement door and window and associated landscaping works in the front garden including installation of balustrades and refuse and cycle storage.

    6 May 2026 135m away Full applications

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