8 Twyford Avenue Hornsey London N2 9NJ Data via plota.co.uk
Proposal
Certificate of lawfulness for the erection of a rear dormer and a side dormer including the insertion of 1x front rooflight and 1x rooflight over the side dormer - proposed use Data via plota.co.uk
Application progress
Approved on 28 Aug 2026 · Delegated Decision · Last checked 24 Sept 2026
Documents 8
Decision & officer reports 2
Plans & drawings 3
Site constraints 6
Checked on 24 September 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Sales history 1
Last sold for £1,475,000 in June 2019. Semi-detached house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
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Important details
How this decision compares
Decided in 115 days from validation, 64 days slower than Haringey's median of 51 for lawful development certificates. Approved, as 84% of lawful development certificates here are.
Plota live figures for lawful development certificates decided across the UK in the last twelve months, from validation; too few recent lawful development certificates in Haringey to go on. Haringey decision record →
Public comments
No public comments yet.
Last counted 24 Sept 2026
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Nearby activity
Haringey is slower than most councils at deciding householder applications, ranking #209 out of 296. Householder applications are slightly more likely to be approved here (91%) than the national average (90%).
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
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8 Twyford Avenue Hornsey London N2 9NJ
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