What does a loft conversion cost in London, Kent & Essex in 2026?
REPLACE: intro paragraph in Jason's voice, honest, specific, no fluff.
| Type | Guide price | Notes |
|---|---|---|
| Velux / rooflight | £45,000–£55,000 | No structural roof change |
| Dormer | £55,000–£70,000 | Most common, adds headroom and floor area |
| Hip-to-gable | £60,000–£80,000 | Typical for 1930s semis |
| Mansard | £75,000–£95,000 | Maximum space, usually needs planning |