Project archive
Certificate of Lawfulness granted by the London Borough of Haringey on 2 April 2026.
Rear dormer approved in Hornsey, Haringey
A certificate of lawfulness for the proposed erection of a rear dormer was granted for the property on Onslow Gardens, Hornsey, London, N10 3JU. The application confirmed that the development is lawful and does not require planning permission.
- Borough or authority
- Haringey
- Project type
- Rear dormer
- Planning reference
- HGY/2026/0840
Approved drawings
Project elevations.
Published outcome
Project record.
Certificate of Lawfulness granted by the London Borough of Haringey on 2 April 2026.
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