Planning application
HGY/2026/0185
123 Plevna Crescent, Tottenham, London, N15 6DY
Proposal
Certificate of Lawfulness for proposed rear dormer extension
As published by the council, reference HGY/2026/0185
Timeline
Dates from the published record
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28 Jan 2026
Received by Haringey
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2 Feb 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/2025/3471 Granted
Land rear of Plevna Crescent, London N15 6DW
Application for a Non-Material Amendment Following a Grant of Planning Permission HGY/2024/1825 to Block D following receipt of updated advice from the fire consultant ahead of a Gateway 2 submission to the Building Safety Regulator (BSR)
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HGY/2026/0446 Granted
85 St Anns Road, Tottenham, London, N15 6NJ
Alterations to the front elevation of the building, replacing the existing shop front with a new residential window, following the grant of prior approval under application reference HGY/2024/1286, for the change of use of the ground floor commercial unit to residential use.
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HGY/2025/3606 Refused
85 St Anns Road, Tottenham, London, N15 6NJ
Prior approval is required for a proposed: Change of use from Commercial, Business and Service (Use Class E) to Dwellinghouses (Use Class C3) Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) - Schedule 2, Part 3, Class MA
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HGY/2026/1869 Awaiting decision
67 St Anns Road, Tottenham, London, N15 6NJ
Replacement of all the property's existing windows with new UPVC double-glazed windows and replacement of the existing front door with a new composite double-glazed door.
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HGY/2026/1111 Granted
85 St Anns Road, Tottenham, London, N15 6NJ
Application to determine if prior approval is required for the proposed change of use of the ground floor of the building from commercial/business/service use (Class E) to residential use (Class C3) to provide two 1-bedroom/1-person studio flats. Application made under Schedule 2, Part 3, Class MA of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended).
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HGY/2026/0837 Granted
14 Ermine Road, Tottenham, London, N15 6DB
Erection of a single storey front extension, repositioned front door with internal alterations, and installation of timber bin store in the front garden.
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).