Planning application
P2026/1005/COL
505A Hornsey Road, London
Proposal
Certificate of Lawfulness (Existing) for the use of the first, second and third floors as a 6-room large HMO (Use Class Sui Generis)
As published by the council, reference P2026/1005/COL
Timeline
Dates from the published record
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15 Apr 2026
Received by Islington
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16 Apr 2026
Validated
Checked as complete and ready for consideration.
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23 Jul 2026
Decision issued: Approve with no conditions
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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
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P2025/0505/COL Awaiting decision
487, HORNSEY ROAD, LONDON, N19 3QL
Certificate of Lawfulness (Existing) for use of the basement as a 1-bedroom self-contained flat, rear ground floor as a 1-bedroom self-contained flat, 1st floor as a 1-bedroom self-contained flat and a self-contained studio flat, 2nd floor as two 1-bedroom self-contained flats, and 3rd floor as two 1-bedroom self-contained flats (Class C3)
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P2026/1428/FUL Awaiting decision
512-514 Hornsey Road, London, N19 3QN
Amendments to front and side ground floor elevations, including alterations to fenestration, materials, and external detailing.
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P2026/1402/FUL Awaiting decision
7-9 Lambton Road, London, N19 3QJ
Replacement of existing timber front and rear windows and doors, including the front fanlight, with double-glazed timber doors to both front and rear elevations; installation of double-glazed sash windows and a fanlight to the front elevation; and installation of double-glazed uPVC casement, top-hung windows without glazing bars to the rear elevation. Both doors are currently single-glazed timber and with be replaced with double-glazed timber units
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P2021/1658/FUL Refused
Land Rear Of 4 And 6, Shaftesbury Road, Islington, London, N19 4QN
Demolition of existing structure and erection of 1x one-bedroom and 1x two-bedroom dwelling house with associated cycle and refuse storage, associated alterations and landscaping.
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P2026/1376/COL Awaiting decision
6 Shaftesbury Road, London, N19 4QN
Erection of hip-to-gable loft conversion, erection of L- Shaped dormer and installation of side elevation windows.
-
P2024/3358/FUL Awaiting decision
Flat A, 37 Lambton Road, London, N19 3QJ
Erection of a rear ground-floor wrap-around extension.
Other lawful development applications
In Islington
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P2026/1434/COL Granted
9 Alwyne Square, London, N1 2JX
Installation of 3 rooflights in the rear roof slope.
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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)
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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.
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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.
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P2026/1048/COL Granted
Flat 24, 40 Danbury Street, London, N1 8JU
Certificate of Lawfulness (Existing) to confirm the use of Flat 24 at first floor of 40 Danbury Street as a self-contained residential flat (Class C3)