P2026/1464/COL

1. 5 Jun 2026

   Received by Islington

2. 17 Jul 2026

   Decision issued: Approve with no conditions

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

• P2026/1221/FUL Granted

  5 Melgund Road, London, N5 1PT

  Erection of single storey side/rear infill extension.

  11 May 2026 0m away Householder
• P2021/1554/FUL Granted

  7 Melgund Road, London, N5 1PT

  Erection of rear dormer roof extension; raising of the rear roof ridge height and installation of 3 no. rooflights to front roofslope

  27 May 2021 7m away Householder
• P2021/1556/COLP Granted

  7 Melgund Road, London, N5 1PT

  Certificate of Lawfulness (proposed) for the erection of a rear outrigger dormer roof extension

  27 May 2021 7m away Lawful development
• P2025/1418/COL Withdrawn

  14 Melgund Road, London, N5 1PT

  Certificate of Lawfulness (Proposed): erection of a second floor rear extension

  16 May 2025 38m away Lawful development
• P2026/0953/FUL Granted

  Baker House, 16 Melgund Road, London N5 1PX

  Replacement of existing Crittall windows with double glazed uPVC windows; replacement of external door at the rear elevation.

  10 Apr 2026 46m away Full applications
• P2026/0532/FUL Awaiting decision

  5, Flat B, Horsell Road, London, N5 1XL

  Dormer to rear roof slope, including the raising of the party walls, to create a Loft Conversion to a flat

  25 Feb 2026 60m away Full applications

• P2026/1005/COL Granted

  505A Hornsey Road, London

  Certificate of Lawfulness (Existing) for the use of the first, second and third floors as a 6-room large HMO (Use Class Sui Generis)

  15 Apr 2026 Lawful development
• P2026/1434/COL Granted

  9 Alwyne Square, London, N1 2JX

  Installation of 3 rooflights in the rear roof slope.

  3 Jun 2026 Lawful development
• P2026/0980/COL Granted

  4A Cowcross Street, London, EC1M 6DR

  Certificate of Lawful (Existing) development for the use of the first, second and third floors as three self-contained studio flats (Class C3)

  14 Apr 2026 Lawful development
• P2026/1324/COL Granted

  Gough House, 1 Windsor Street, London, N1 8QA

  Certificate of Lawfulness (proposed) for the installation of low-level play equipment, seating, planter with trellis, grass matting and a self-closing child-safety gate fixed to existing metal hoop-top fencing.

  21 May 2026 Lawful development
• P2026/1943/COL Awaiting decision

  49, Linton Street, London, N1 7AN

  Certificate of Lawfulness (Proposed) for the construction of a garden studio/outbuilding in rear garden.

  21 Jul 2026 Lawful development