Planning application
HGY/2026/0032
17 Cissbury Road, Tottenham, London, N15 5PU
Proposal
Certificate of Lawfulness for proposed rear dormer and outrigger extensions to facilitate loft conversion
As published by the council, reference HGY/2026/0032
Timeline
Dates from the published record
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8 Jan 2026
Received by Haringey
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26 Jan 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/2026/1463 Granted
11 Cissbury Road, Tottenham, London, N15 5PU
Certificate of lawfulness for the erection of a rear dormer and roof extension including a Juliet balcony, and the insertion of 2x front and 1x rear rooflight. - proposed use
-
HGY/2023/0505 Granted
40 Cissbury Road, Tottenham, London, N15 5QA
Certificate of lawfulness for the formation of dormer extensions in rear roof slope and over rear outrigger and insertion of 2 x rooflights to the front roofslope.
-
HGY/2026/1465 Granted
26 Cissbury Road, Tottenham, London, N15 5QA
Certificate of lawfulness for the erection of a rear dormer and roof extension including the replacement of 1x front rooflight and insertion of 1x additional front and 1 rear rooflight - proposed use
-
HGY/2025/0181 Awaiting decision
Chestnuts Preschool N15, The Old School House, 2a South Grove, London, N15 5QD
Replacement windows on the ground and upper floors.
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HGY/2026/0327 Granted
4 Oulton Road, Tottenham, London, N15 5PY
Certificate of Lawfulness for the proposed erection of a ground floor rear extension, dormer extensions to the main rear and outrigger roof slopes and the installation of two roof lights to the front roof slope.
-
HGY/2025/3477 Granted
174 St Anns Road, Tottenham, London, N15 5RP
T0523 Horse Chestnut - Crown Lift to 3m for pedestrian clearance and 5.5m over highway. No change to overall height or spread.
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.
-
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.
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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).