Planning application
P2026/1434/COL
9 Alwyne Square, London, N1 2JX
Proposal
Installation of 3 rooflights in the rear roof slope.
As published by the council, reference P2026/1434/COL
Timeline
Dates from the published record
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3 Jun 2026
Received by Islington
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22 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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P2026/1432/FUL Refused
9 Alwyne Square, London, N1 2JX
Insertion of 3 conservation-style rooflights in the existing front roof slope.
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P2026/1433/FUL Awaiting decision
9 Alwyne Square, London, N1 2JX
Erection of rear dormer.
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P2025/0389/TRE Awaiting decision
Community Gardens, Alwyne Square, London
T1 - Horse Chestnut - reduce low limb growing over roadway to previous points of reduction (3m max branch removal) T2 - Horse Chestnut - crown lift over roadway to 6m from ground level Works proposed to prevent branches overreaching the public highway and to reduce loading on lower limb of T1
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P2025/0781/TRE Awaiting decision
63 St Paul's Road, London
T1 Acer - Reduce crown by 2.5 Metres & shape - To prevent crown encroaching on building & prevent buses/vehicles hitting crown T2 Lime - Reduce crown by 2.5 Metres & shape - To prevent crown encroaching on building & prevent buses/vehicles hitting crown T3 Acer - Reduce crown by 2.5 Metres & shape - To prevent crown encroaching on building & prevent buses/vehicles hitting crown T4 Acer - Reduce crown by 2.5 Metres & shape - To prevent crown encroaching on building & prevent buses/vehicles hitting crown
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P2025/0516/TRE Awaiting decision
Grice Court, Alwyne Square, London
Line of 6 Cherry Trees 25% crown reduction (shorten branches by 2m) Excessive shading.
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P2026/1182/TRE Granted
23 Canonbury Park North, London, N1 2JZ
Rear garden: Leyland Cypress T1 (20M high, 700mm dia.) - Fell to ground level because it has significantly outgrown the location and is causing excessive shading. Bay T2 (12M high, 400mm dia.) - Trim the tree’s crown back to the latest reduction points, reducing it by up to 3 metres overall.
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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P2026/0980/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)