12 Cromwell Avenue, Hornsey, London, N6 5HL

1. 8 Oct 2024

   Received by Haringey

2. 10 Dec 2024

   Decision issued: Approve with Conditions

3. 25 Aug 2026

   Added to PlanIndex

Haringey granted permission on 10 December 2024, 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.

• 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

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

  HGY/2023/0475 Submitted 17 Feb 2023 50 yards away

  Approval of details reserved by condition 3 (Materials) attached to planning permission HGY/2022/3528.

  Granted Conditions 7 docs

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

  HGY/2023/0145 Submitted 17 Jan 2023 50 yards away

  Erection of a single storey, lean-to side infill extension to the ground floor.

  Refused Householder Extension 12 docs
  Small domestic

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

  HGY/2024/3089 Submitted 11 Nov 2024 50 yards away

  T1 Plum, reduce height by 3m, balance sides T2 Bay, reduce height to previous points approx. 3m, reduce sides 2m T3 Holly, reduce height by 1m trim sides. All work cyclical maintenance.

  Granted Trees 3 docs

• 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

• 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