Planning application
HGY/2026/1881
44 Lanchester Road, Hornsey, London, N6 4TA
Proposal
Certificate of Lawfulness: Proposed construction of a rear and side roof dormer with 2 rooflights; Partial conversion of the existing garage to a home office, including replacement of the garage door, insertion of a side and rear window, and infill of part of the garage roof; Installation of retractable fabric awnings to first-floor rear windows and replacement awnings to rear ground-floor windows; Installation of external wall insulation; and Installation of roof-mounted solar panels.
As published by the council, reference HGY/2026/1881
Timeline
Dates from the published record
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6 Jul 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/2026/0791 Granted
34 Lanchester Road, Hornsey, London, N6 4TA
Works to tree protected by a TPO. T1 Quercus robur (English Oak) - large tree to rear left hand side of garden. Proposed balanced pollarding reduction by 2m. Tree has been maintained before and has a balanced crown, meaning a balanced reduction will suit. T1 in the sketch.
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HGY/2023/0178 Granted
59 Lanchester Road, Hornsey, London, N6 4SX
Erection of a first floor side extension over existing garage, roof extension including a front dormer window and creation of a rear dormer extension with internal alterations.
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HGY/2022/2750 Granted
29, Lanchester Road, London, N6 4SX
Proposed conversion of garage into a habitable space with the garage door replaced with a large window, a single storey rear extension, modification to rear dormer, change of rear first floor windows, 15 photovoltaic panels on the side and rear roof slope, 1 front rooflight and 3 side rooflights and erection of new outbuilding to the rear.
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HGY/2026/0147 Granted
34 Fordington Road, Hornsey, London, N6 4TJ
Side and rear extension, part 1st floor side extension, hip to gable to outrigger, windows and doors replacement, external render.
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HGY/2026/1356 Awaiting decision
20 Fordington Road, Hornsey, London, N6 4TJ
Variation of conditions 2 (Approved Plans) and 6 (Incidental Outbuilding) attached to planning permission ref: HGY/2025/1168 to omit the approved outbuilding.
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HGY/2026/0507 Granted
18 Fordington Road, Hornsey, London, N6 4TJ
First floor side extension and partial garage conversion.
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).