21 Mattison Road, Hornsey, London, N4 1BG
Erection of a single-storey partial side extension including the creation of a lightwell and refurbishment of the ground-floor rear elevation; construction of a rear dormer including the installation of 3x front/1x rear rooflights and construction of a second-floor outrigger roof extension, including associated roof terrace.
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Progress
Application details
- Reference
- 307:HGY/2026/2579
- Local authority
- Haringey
- Property type
- House
Key dates
- Submitted
- 15 Sept 2026
- Validated
- 15 Sept 2026
Estimated project value
£28k–£75k
Typical UK cost for this job type, at UK average rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: Checkatrade 2026 loft conversion cost guide.
Planning constraints
No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.
Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.