Planning application
P2026/0551/COL
Flat A, 53 King Henry's Walk, London, N1 4NH
Proposal
Certificate of Lawfulness (Existing) for use of the property as 3no. self-contained residential flats (Use Class C3) for a continuous period exceeding four years
As published by the council, reference P2026/0551/COL
Timeline
Dates from the published record
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26 Feb 2026
Received by Islington
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5 Mar 2026
Validated
Checked as complete and ready for consideration.
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3 Jun 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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P2026/1469/FUL Awaiting decision
9 St Jude Street, London, N16 8JU
Installation of a bike store shed in the front garden of the property.
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P2025/2352/FUL Awaiting decision
Various Locations in LB Islington (N1, N4, N5, N16 Postcodes)
Erection of pairs of poles with clear wire between the poles at 15 locations across the Borough comprising the Stamford Hill Eruv. RE-CONSULATION REASON: Location 32.1 (Seven Sisters Road / St Thomas's Road) added and Location 22(B) pole location amended.
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P2026/1245/FUL Awaiting decision
Flat C, 45 Queen Margaret's Grove, London, N1 4PZ
Construction of a single-story rear extension with courtyard. Replacement of rear windows. Installation of bicycle storage and water butt to the front light well. Installation of an Air Source Heat Pump to rear. Rear landscaping and installation of steps.
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P2026/1185/TRE Granted
45 Queen Margaret's Grove, London
Isolated ash tree (self-seeded) in rear garden on the boundary between No.?45 and No.?47. Approximately 12?m in height. Ref. T1. The tree is positioned immediately adjacent to a masonry retaining wall along the boundary. The garden level at No.?47 is approximately 700?mm higher than that at No.?45, with the wall retaining the higher ground. The base of the tree trunk is in direct contact with the wall and has caused unsafe structural instability through physical pressure on the walls as the tree has grown. Work is required to stabilise or reconstruct the retaining wall and would involve excavation close to the trunk and may require severance of structural roots, with implications for the stability of the tree. The tree is also located in very close proximity to the foundations of the neighbouring brick garden sheds in both properties (approximately 300?mm distance from tree), and the main properties (less than 1.5?m distance from tree) presenting ongoing interaction with their foundations as the tree grows. In this context, the tree is considered unsuitable for long-term retention in its current position. It is therefore proposed to fell the tree and grind out the stump to facilitate repair and reinstatement of the retaining wall. A replacement planting of suitable species can be undertaken within the garden following completion of the works.
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P2021/1638/FUL Granted
Flat A, 81 Mildmay Grove North, Islington, London, N1 4PL
Proposed demolition of existing shed and replacement with timber outbuilding.
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P2026/0672/FUL Granted
79 Mildmay Grove North, London, N1 4PL
Construction of a lower ground floor single storey rear extension with an upper ground floor part rear extension, part basement excavation with rear lightwell and additional doors and window on the rear elevation. New replacement double glazed timber sash windows to front and rear elevations.
Other lawful development applications
In Islington
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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)
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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.