Lewisham
Application for a Lawful Development Certificate (Proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) and Classes A, B, and C of Schedule 2, Part 1 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the construction of a rear dormer roof extension, the insertion of two rooflights to the front roof slope, and alterations to the existing rear extension including changes to cladding, windows, and door at 26 Tannsfield Road, SE26.
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Progress
Application details
- Reference
- DC/26/142686
- Local authority
- Lewisham
- Ward
- Sydenham
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 16 Jan 2026
- Validated
- 16 Jan 2026
- Decided
- 2 Feb 2026
Estimated project value
£28k–£58k
Based on the 23.0m² of floor area stated in the application, at UK average rates (2026). Source: Checkatrade 2026, loft conversion £1,200-£2,500/m².
Floor area gained: 23m² · 1 additional bedrooms
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.