Free Tool
Instant Quote Calculator
Know roughly what your project could cost before you commit. Choose your project type, adjust the size, and get an instant ballpark figure — then leave your details for a tailored quote from our RIBA chartered team.
Tell us about your project
Dormer or hip-to-gable loft conversion
30 m²
15 m²60 m²
Your estimated cost
£54,000 – £78,000
Loft Extension · 30 m² · Standard finish
Indicative build cost range only. Final figures depend on site conditions, specification and design. Leave your details for an accurate, tailored quote.
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