Renovation calculator · free
What will your renovation actually cost?
Five short steps, three spec tiers, fully itemised breakdown at the end — labour, materials, planning route, professional fees, contingency and timeline. No sign-up, no email needed.
What are you renovating?
Select the type of work you're planning.
Long reads
Want the reasoning behind the numbers?
The calculator gives you a single answer for your project. The guides below explain where the underlying ranges come from, the eight hidden costs to add, and where AI fits in.
Renovation cost · 14 min
How much does it cost to renovate a UK house in 2026?
BCIS Q1 2026 + FMB data. Cost-by-scope / spec / region / room tables, the eight hidden costs nobody quotes for, and the VAT treatment that catches 4 in 10 homeowners.
Read the guideAI · 12 min
Can AI estimate a UK renovation cost from a property photo?
We tested Claude Sonnet 4.5 vision against a chartered UK quantity surveyor on a real Inner-London semi. Where AI is genuinely useful and where it falls apart.
Read the guide