26 Cornwall Road, Hornsey, London, N4 4PH

1. 2 Sep 2026

   Received by Haringey

2. 10 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 28 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Haringey took a median of 53 days over the applications it decided in the last year.

This application is with Haringey for determination, against a statutory target of eight weeks. Over the last year Haringey decided householder applications in a median of 56 days. More in our guide to how long planning decisions take.

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.

• 16 Cornwall Road, Hornsey, London, N4 4PH

  HGY/2026/1491 Submitted 4 Jun 2026 0m away

  Formation of rear dormer and 3 no. front rooflights

  Granted Householder Loft or dormer 6 docs
  Domestic

• 10 Cornwall Road, Hornsey, London, N4 4PH

  HGY/2025/3356 Submitted 16 Jan 2026 0m away

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

  Granted Full applications Windows or glazing 11 docs

• 11 Cornwall Road, Hornsey, London, N4 4PH

  HGY/2025/3357 Submitted 16 Jan 2026 0m away

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

  Granted Full applications Windows or glazing 11 docs

• 28 Lancaster Road, Hornsey, London, N4 4PR

  HGY/2023/0043 Submitted 6 Jan 2023 75m away

  Erection of a single storey rear/infill extension.

  Granted Householder Extension 8 docs
  Small domestic

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

  HGY/2025/3609 Submitted 28 Jan 2026 84m away

  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.

  Granted Amendments Extension 16 docs

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

  HGY/2026/1525 Submitted 1 Jun 2026 100m away

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

  Granted Trees 5 docs

• HGY/2026/2282 Awaiting decision

  77 Falkland Road, Hornsey, London, N8 0NS

  Single storey side and rear extension.

  14 Sep 2026 Householder
• HGY/2026/2059 Granted

  21 Shanklin Road, Hornsey, London, N8 8TJ

  Single Storey Rear Extension

  20 Jul 2026 Householder
• HGY/2026/2162 Granted

  71 Fairfax Road, Hornsey, London, N8 0NH

  Erection of L-shaped rear dormer; erection of single storey rear extension; 2 no. front roof lights.

  30 Jul 2026 Householder
• HGY/2026/1895 Granted

  396 St Anns Road, Tottenham, London, N15 3ST

  Erection of single storey side infill extension, formation of dormer window and insertion of 4 nos. rooflights (3no. front facing and 1no. rear facing).

  17 Jul 2026 Householder
• HGY/2026/1959 Granted

  10 Roseberry Gardens, Tottenham, London, N4 1JJ

  Erection of a single storey rear and side wraparound extension, formation of dormer window and insertion of 3 nos. rooflights to front roof slope (amended).

  17 Jul 2026 Householder