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Planning application

HGY/2026/1048

18 Muswell Avenue, Hornsey, London, N10 2EG

Awaiting decision Haringey Householder planning permission

Proposal

Erection of a single storey rear extension with roof terrace, alterations and replacement of rear fenestrations, and alterations to front garage door and lower ground window.

As published by the council, reference HGY/2026/1048

Timeline

Dates from the published record

  1. 15 May 2026

    Received by Haringey

  2. 24 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Haringey for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

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/2026/2008 Awaiting decision

    22 Muswell Avenue, Hornsey, London, N10 2EG

    T1- Neighbours Hazel tree- prune back overhanging branches back to boundary. T2- Neighbours Ash tree- Prune back low overhanging branches with poles from ground level by up to 2m. T3- Neighbours shrubs - Prune back overhang close to boundary. G1- Pleached Portugese Laurels - Prune back all sides and top to bring back into shape. T4- Street tree- Maple- Reduce branches overhanging front garden back to boundary.

    16 Jul 2026 0m away Trees
  • HGY/2026/1073 Granted

    20 Muswell Avenue, Hornsey, London, N10 2EG

    T1 - holm oak tree (8m) - reduce crown by approximately 1.5m and thin crown by approximately 20%. T2 - bay tree (6m) - reduce height by approximately 2m and trim sides. T3 - bay tree (6m) - reduce height by approximately 2m and trim sides. T4 - bay tree (4m) - reduce crown by approximately 1m.

    16 Apr 2026 0m away Trees
  • HGY/2026/0824 Decided

    Norfolk House School, 10 Muswell Avenue, Hornsey, London, N10 2EG

    T4 Cypress of the submitted MWA Arboricultural Report Works: Remove (fell) to near ground level and treat stump to inhibit regrowth. Reason: Clay shrinkage subsidence damage at the subject property.

    24 Mar 2026 0m away Trees
  • HGY/2025/3443 Granted

    1 Muswell Avenue, Hornsey, London, N10 2EB

    T1 sycamore. Previously reduced tree with extensive decay in trunk. Application is to reduce trunk to fence level to maintain wildlife habitat and maintain some new low growth

    10 Dec 2025 45m away Trees
  • HGY/2026/0134 Awaiting decision

    Ground Floor Flat, 21 Coniston Road, Hornsey, London, N10 2BL

    Erection of single storey ground floor rear extension

    12 Feb 2026 55m away Householder
  • HGY/2026/0165 Refused

    25 Coniston Road, Hornsey, London, N10 2BL

    Formation of a vehicle crossover with driveway accessing from the front of the property.

    20 Jan 2026 55m away Householder

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