Planning application
HGY/2026/0350
105 Sydney Road, Hornsey, London, N8 0ET
Proposal
Certificate of lawfulness for proposed use: Erection of a rear L-shaped dormer and insertion of 2no. front rooflights.
As published by the council, reference HGY/2026/0350
Timeline
Dates from the published record
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2 Mar 2026
Received by Haringey
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26 Mar 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/2024/2547 Granted
97 Sydney Road, Hornsey, London, N8 0ET
Certificate of lawfulness: existing use of the property as three self-contained flats.
-
HGY/2026/0051 Granted
43 Sydney Road, Hornsey, London, N8 0ET
Replacement of the existing timber windows with modern double glazed timber units.
-
HGY/2024/2417 Granted
52 Sydney Road, Hornsey, London, N8 0EX
Replacement of existing white timber sash windows to the frontage and uPVC casement units to rear elevation, with double glazed white uPVC units.
-
HGY/2022/1930 Granted
44, Sydney Road, Hornsey, London, Haringey, N8 0EX, London
Proposed single storey side and rear extension. Amendment to planning permission (HGY/2022/0240) to add rear extension.
-
HGY/2026/0178 Granted
56 Sydney Road, Hornsey, London, N8 0EX
Certificate of Lawfulness Proposed: Conversion within Use Class C3 for 56 Sydney Road from C3a (single dwellinghouse) to C3b (dwellinghouse occupied by up to six people living together as a single household where care is provided for residents).
-
HGY/2026/1398 Granted
Shop, 55 Turnpike Lane, Wood Green, London, N8 0EE
Non Material Amendment to planning permission HGY/2024/2588 to make minor changes to external shopfront from the original submission including: • Change in business name • Change in colour scheme
Other lawful development applications
In Haringey
-
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.
-
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.
-
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).
-
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.
-
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).