29 Cromwell Avenue, Hornsey, London, N6 5HN

1. 22 Apr 2026

   Received by Haringey

2. 24 Jul 2026

   Added to PlanIndex

3. 7 Aug 2026

   Decision issued: Approve with Conditions

Haringey granted permission on 7 August 2026, 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.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• Ground Floor Flat A, 39 Cromwell Avenue, Hornsey, London, N6 5HN

  HGY/2025/3327 Submitted 1 Dec 2025 50 yards away

  T1 = to crown reduce 1 x Sycamore tree by approx. 2.0/mtrs & sever ivy at the base up to 1.0mtr light access general maintenance neighbouring property encroachment

  Granted Trees 5 docs

• Flat 1D Cromwell Avenue, London N6 5HN

  HGY/2026/1091 Submitted 17 Apr 2026 50 yards away

  Installation of 2no. roof lights on the roof of the two storey rear outrigger.

  Granted Full applications Extension Loft or dormer 11 docs

• 23, Cromwell Avenue, London, N6 5HN

  CON/2021/0232 Submitted 17 May 2021 50 yards away

  Sycamore (T1) - Prune to boundary (previous points) of 23 Cromwell Avenue

  Granted Trees 7 docs

• 19 Cromwell Avenue, Hornsey, London, N6 5HN

  HGY/2022/4279 Submitted 1 Dec 2022 50 yards away

  Demolition of existing conservatory, erection of single storey side/rear extension and installation of rear bi-fold doors.

  Granted Householder Extension Demolition +1 7 docs
  Small domestic

• 58 Cromwell Avenue, Hornsey, London, N6 5HL

  HGY/2024/2760 Submitted 7 Oct 2024 50 yards away

  Erection of rear ground floor extension and replacement of windows

  Granted Householder Extension Windows or glazing 28 docs
  Domestic

• 34 Cromwell Avenue, Hornsey, London, N6 5HL

  HGY/2026/0623 Submitted 5 Mar 2026 50 yards away

  Oak (T1): Reduce to previous points (approx. 1-2m)

  Granted Trees 3 docs

• HGY/2026/1799 Awaiting decision

  14 Kingsley Place, Hornsey, London, N6 5EA

  The installation of 20 x 460W solar panels on the flat roof of 14 Kingsley Place, together with the routing of external heat-pump pipework over the flat roof.

  Received 8 Oct, published by the council 11 Oct 2026 Householder
• HGY/2026/1048 Granted

  18 Muswell Avenue, Hornsey, London, N10 2EG

  Erection of a single storey lower ground floor rear extension with roof terrace and associated landscaping works, insertion of rear ground floor door to proposed terrace, alterations and replacement of rear dormer glazing and first floor rear window, and alterations to front garage door and lower ground window.

  Received 15 May, published by the council 24 Jul 2026 Householder
• HGY/2026/2213 Awaiting decision

  2 Parkwood Mews, Hornsey, London, N6 5UR

  Convert the basement into a basement flat (retrospective application).

  Received 5 Oct, published by the council 11 Oct 2026 Householder
• HGY/2026/2541 Awaiting decision

  132 Vartry Road, Tottenham, London, N15 6HA

  Erection of a single storey rear/side extension, together with the installation of a Sukkah roof

  Received 5 Oct, published by the council 11 Oct 2026 Householder
• HGY/2026/2240 Granted

  40 Cholmeley Park, Hornsey, London, N6 5ER

  Installation of a new painted timber sash window to the existing side dormer on the north elevation of the property at second floor level.

  Received 10 Aug, published by the council 31 Aug 2026 Householder