Planning application
HGY/2026/1150
49 Linzee Road, Hornsey, London, N8 7RG
Proposal
Certificate of Lawfulness proposed for the erection of dormer extension
As published by the council, reference HGY/2026/1150
Timeline
Dates from the published record
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27 Apr 2026
Received by Haringey
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11 May 2026
Decision issued: Permitted Development
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24 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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HGY/2026/1305 Decided
49 Linzee Road, Hornsey, London, N8 7RG
Erection of single storey extension which extends beyond the rear wall of the original house by 6m, for which the maximum height would be 3.6m and for which the height of the eaves would be 3m
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HGY/2021/1616 Granted
65, Linzee Road, London, N8 7RG
Variation of condition 2 (approved plans) attached to planning permission ref: HGY/2019/2795 to alter the rear corner roof profile (adjacent to No 63) of the approved single storey side and rear wrap around extension.
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HGY/2025/3589 Granted
6 Baden Road, Hornsey, London, N8 7RJ
Erection of a single storey infill rear extension.
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HGY/2021/1891 Decided
Flat B, 28, Priory Avenue, London, N8 7RN
Certificate of lawfulness for alternative layout as C3 Dwellinghouse as set out in proposed drawings, facilitated by internal alterations only.
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HGY/2023/0189 Refused
20 Priory Avenue, Hornsey, London, N8 7RN
Rear extension and internal alterations
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HGY/2025/3549 Granted
3 Beechwood Road, Hornsey, London, N8 7NE
Retrospective planning permission for the replacement of ground floor timber sash windows with uPVC heritage style sash units, and the removal and replacement of external timber doors with composite panelled doors.
Other lawful development applications
In Haringey
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HGY/2026/2104 Granted
17 Sperling Road, Tottenham, London, N17 6UQ
Certificate of lawfulness for proposed use: Loft conversion with erection of rear L-shaped dormer and insertion of 2no. front rooflights.
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HGY/2026/1307 Granted
49 Lordsmead Road, Tottenham, London, N17 6EX
Certificate of lawfulness for the existing use of the property as five separate self-contained flats.
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HGY/2026/1885 Granted
6, Grainger Road, London, N22 5LT
Certificate of Lawfulness: Proposed alterations to the roof comprising the installation of 3no. rooflights (2no. front facing and 1no. rear facing).
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HGY/2026/1375 Granted
Flats 1, 2, & 3 149 Crescent Road, Wood Green, London, N22 7RU
Certificate of lawfulness for the existing use of the property as 3 self-contained flats (comprising of ground floor 2 bed, first floor 2 bed, second floor 1 bed) for more than 4 years.
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HGY/2026/1409 Granted
492 Archway Road, Hornsey, London, N6 4NA
Certificate of Lawfulness Existing Use. Use of lower ground floor as two flats (Use Class C3).