Planning application
P2026/0076/COL
Basement Flat, 191 Blackstock Road, London, N5 2LL
Proposal
Certificate of Lawfulness (Existing) to confirm the use of the Basement (Flat D) as a self-contained residential flat (Class C3)
As published by the council, reference P2026/0076/COL
Timeline
Dates from the published record
-
12 Jan 2026
Received by Islington
-
26 Feb 2026
Validated
Checked as complete and ready for consideration.
-
21 May 2026
Decision issued: Approve with no conditions
-
25 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
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.
About lawful development applications
How this application type works
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.
Nearby applications
Within 500 metres
-
P2026/0879/FUL Granted
65, Canning Road, London, N5 2JR
Mansard Roof Extension
-
P2025/0761/FUL Awaiting decision
158 Blackstock Road, London, N5 1HA
Erection of roof extension to create additional storey to provide 1no. 2 bedroom flat
-
P2026/1188/FUL Granted
211 Blackstock Road, London, N5 2LL
Replacement windows and doors across all elevations, removal of area of commercial roof, installation of PV panels on the eastern section of roof and installation of fence on Blackstock Road elevation
-
P2026/1189/PRA Granted
211 Blackstock Road, London, N5 2LL
Notification of Prior Approval for the change of use at lower ground floor and mezzanine level from commercial (Class E) to residential (Class C3) to form 3no. three bedroom dwellings under Schedule 2, Part 3, Class MA (commercial, business and service to dwelling houses)
-
P2026/1186/FUL Awaiting decision
14 Canning Road, London, N5 2JS
Erection of single storey rear extension and mansard roof extension.
-
P2026/1187/COL Granted
14 Canning Road, London, N5 2JS
Erection of rear outrigger dormer extension.
Other lawful development applications
In Islington
-
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)
-
P2026/1434/COL Granted
9 Alwyne Square, London, N1 2JX
Installation of 3 rooflights in the rear roof slope.
-
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)
-
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.
-
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.