HGY/2026/0940

1. 1 Apr 2026

   Received by Haringey

2. 2 Apr 2026

   Decision issued: Permitted Development

3. 24 Jul 2026

   Added to PlanIndex

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.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• HGY/2026/1715 Awaiting decision

  26 Onslow Gardens, Hornsey, London, N10 3JU

  Lawful development: Proposed use for the erection of a rear dormer with 2 no. rooflights on the front roof slope.

  16 Jun 2026 0m away Lawful development
• HGY/2026/1408 Granted

  24 Onslow Gardens, Hornsey, London, N10 3JU

  Enlargement of existing rear dormer and installation of a front dormer window.

  19 May 2026 0m away Householder
• HGY/2026/1679 Awaiting decision

  24 Onslow Gardens, Hornsey, London, N10 3JU

  Erection of a single storey rear and side wraparound extension.

  15 Jun 2026 0m away Householder
• HGY/2026/1669 Awaiting decision

  26 Onslow Gardens, Hornsey, London, N10 3JU

  Erection of a wrap around ground floor rear extension and extension of first floor rear outrigger; erection of two front roof lights.

  24 Jun 2026 0m away Householder
• HGY/2026/1413 Awaiting decision

  50 Woodland Gardens, Hornsey, London, N10 3UA

  Removal/variation of condition 3 (Design and Materials) as attached to planning permission HGY/2015/1450 as approved on 09/07/2015 for 'Conversion of single family dwelling into 3 self-contained flats (2 x 3 bedroom and 1 x 1 bedroom). Construction / adaptation of rear roof to include 3 x dormers, installation of rooflights to front roofslope, and insertion of 1 new window and enlargement of 2 windows to lower ground floor'

  23 Jun 2026 100m away Amendments
• HGY/2026/1036 Granted

  Ground Floor Flat A, 26 Woodland Gardens, Hornsey, London, N10 3UA

  Non-Material Amendment application following a grant of planning permission HGY/2021/2079 in relation to the alteration to the rear of the house:- 1. Minor amendment to the design of the central door, now in white timber, with double-glazing; 2. Revision to the design of the window on the right, to be exactly the same design as the existing window but in double-glazed white uPVC; 3. The window on the left to remain as a window rather than forming a new double door, retaining exactly the same design as the existing window but in double-glazed white uPVC.

  13 Apr 2026 100m away Amendments

• HGY/2026/2104 Granted

  17 Sperling Road, Tottenham, London, N17 6UQ

  Certificate of lawfulness for proposed use: Loft conversion with erection of rear L-shaped dormer and insertion of 2no. front rooflights.

  23 Jul 2026 Lawful development
• HGY/2026/1307 Granted

  49 Lordsmead Road, Tottenham, London, N17 6EX

  Certificate of lawfulness for the existing use of the property as five separate self-contained flats.

  8 May 2026 Lawful development
• HGY/2026/1885 Granted

  6, Grainger Road, London, N22 5LT

  Certificate of Lawfulness: Proposed alterations to the roof comprising the installation of 3no. rooflights (2no. front facing and 1no. rear facing).

  6 Jul 2026 Lawful development
• HGY/2026/1375 Granted

  Flats 1, 2, & 3 149 Crescent Road, Wood Green, London, N22 7RU

  Certificate of lawfulness for the existing use of the property as 3 self-contained flats (comprising of ground floor 2 bed, first floor 2 bed, second floor 1 bed) for more than 4 years.

  14 May 2026 Lawful development
• HGY/2026/1409 Granted

  492 Archway Road, Hornsey, London, N6 4NA

  Certificate of Lawfulness Existing Use. Use of lower ground floor as two flats (Use Class C3).

  19 May 2026 Lawful development