Planning application
HGY/2026/0394
109 Nightingale Lane, Hornsey, London, N8 7LG
Proposal
Lawful development: Proposed dormer extension with associated hip to gable extension.
As published by the council, reference HGY/2026/0394
Timeline
Dates from the published record
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13 Feb 2026
Received by Haringey
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31 Mar 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/2026/0393 Granted
109 Nightingale Lane, Hornsey, London, N8 7LG
Erection of ground floor side extension and installation of windows on side elevation.
-
HGY/2026/0326 Granted
31 South View Road, Hornsey, London, N8 7LU
Erection of a single storey ground floor side to rear extension.
-
HGY/2026/1293 Awaiting decision
33 South View Road, Hornsey, London, N8 7LU
Part single part two storey side extension
-
HGY/2026/1626 Granted
17 South View Road, Hornsey, London, N8 7LU
Overview: Trees 3 (unknown) and 4 (Elder) have been smothered by ivy, compromising their health and structural integrity, and we would like to remove them so they do not pose a safety risk. Tree 2 (Elder) has similarly been strangled by ivy and is dying; we would like to remove it both on safety grounds and, as we have young children, to make full and safe use of the rear garden. Tree 1 (Talipot Palm) is not in keeping with the character of the conservation area, and we would like to replace it with a pear tree, a traditional fruit tree well suited to the cottage-garden character of the estate. Tree 5 (Elder), at the front of the property, is beginning to encroach onto the neighbouring property and we would like to remove.
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HGY/2026/1688 Awaiting decision
31 South View Road, Hornsey, London, N8 7LU
Erection of part single part two storey side extension
-
HGY/2026/1689 Awaiting decision
69 Boyton Road, Hornsey, London, N8 7AE
Erection of a single-storey rear extension at ground floor level.
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).
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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).