Planning application
HGY/2026/0986
1 Thackeray Avenue, Tottenham, London, N17 9DT
Proposal
Certificate of lawfulness for the erection of a rear dormer and roof extension including the insertion of 2x front and 1x rear rooflights - proposed use
As published by the council, reference HGY/2026/0986
Timeline
Dates from the published record
-
7 Apr 2026
Received by Haringey
-
29 May 2026
Decision issued: Permitted Development
-
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
-
HGY/2026/1063 Granted
49 Thackeray Avenue, Tottenham, London, N17 9DT
Certificate of lawfulness (proposed) for the erection of a rear dormer and roof extension including the insertion of 2x front and 1x rear rooflight
-
HGY/2026/0098 Granted
56 Carew Road, Tottenham, London, N17 9BA
Enlargement of single storey rear extension.
-
HGY/2026/0797 Granted
Mulberry Primary School, Parkhurst Road, Tottenham, London, N17 9RB
Window replacement with like-for-like materials, Flat roof overlays/replacement. Replacement of polycarbonate roof to external walkway, Localised repairs to pitched tiled roofs, External repairs to brickwork, stonework, defective pointing, rainwater gutters/downpipes.
-
HGY/2026/2130 Awaiting decision
153 Dowsett Road, Tottenham, London, N17 9DN
Erection of double storey rear extension.
-
HGY/2026/1655 Awaiting decision
153 Dowsett Road, Tottenham, London, N17 9DN
Certificate of Lawfulness for proposed use from a dwellinghouse (Use Class C3(a)) to a care home for adults within Use Class C3(b) including internal reconfiguration and ancillary staff facilities.
-
HGY/2026/1587 Awaiting decision
1 Rosebery Avenue, Tottenham, London, N17 9RY
Change of Use from C3 to C4 of a terraced house.
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).