← Loft Conversions
Mansard Loft Conversions
A mansard rebuilds the rear roof slope to near-vertical, maximising head height and floor area — the gold standard for London period properties and conservation areas.
From
£85,000
Programme
12–14 weeks
Planning
Full required
Warranty
10 years
Why homeowners choose this
- Largest gain in usable floor area
- Sympathetic to period London streetscapes
- Suits flats, terraces and townhouses
- Adds significant resale value
Planning, structural & build — handled.
Our in-house team manages design, planning, party wall agreements, structural calcs and Building Control sign-off. You get one team, one contract, one timeline.
Areas we cover
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Estimated investment
£94,000 – £113,000
Indicative range incl. VAT. Final quote provided after a free site visit.
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Free site visit, fixed-price quote, and full design and planning under one roof.