Planning application
HGY/2026/1556
170 Westbury Avenue, Wood Green, London, N22 6RU
Proposal
Certificate of lawfulness for proposed use: Erection of single storey garden room outbuilding in the rear garden.
As published by the council, reference HGY/2026/1556
Timeline
Dates from the published record
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23 Jun 2026
Received by Haringey
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24 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Haringey for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
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/2023/0418 Granted
170 Westbury Avenue, Wood Green, London, N22 6RU
Certificate of lawfulness for proposed rear dormer extension, hip-to-gable roof alteration and insertion of 2 x rooflights to the front roofslope, including a single storey side extension (similar to approved HGY/2018/2979).
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HGY/2026/0748 Granted
231 Sirdar Road, Wood Green, London, N22 6QU
Replacement of the existing timber single-glazed front entrance door with a composite double-glazed front entrance door.
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HGY/2026/0014 Granted
270 Boundary Road, Tottenham, London, N22 6AJ
Non-Material Amendment to planning application reference HGY/2021/0622 for the enlargement of the side facing widows on ground & first floor, the replacement of rear ground floor bedroom window with new white UPVC doors & window, the omission existing ground floor kitchen window and replacement with double doors and including the installation of new timber bin enclosure to the front elevation.
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HGY/2026/0581 Granted
178 Boundary Road, Tottenham, London, N22 6AJ
Ground floor rear extension with roof light and loft conversion with roof lights.
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HGY/2026/0788 Granted
210 Boundary Road, Tottenham, London, N22 6AJ
Formation of rear L Shaped dormer with roof lights on front slope
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HGY/2026/1040 Awaiting decision
208 Boundary Road, Tottenham, London, N22 6AJ
Erection of a single storey rear wraparound extension.
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).