Cost Estimate Disclaimer

UK Home Costs provides indicative planning estimates, not quotations, valuations or professional advice. Actual prices can differ materially because of location, access, specification, property condition, contractor availability, tax treatment and unforeseen work.

Calculator outputs

Calculator results combine dated UK benchmark data with modelling assumptions such as regional multipliers, size scaling and optional project allowances. They are intended to help you set an initial budget and compare the scale of different choices.

Get project-specific quotes

Before entering a contract or making a significant purchase, obtain itemised quotations from appropriately qualified and insured professionals who have inspected your property and scope of work.

Grants and schemes

Government grants, tax rules and eligibility criteria can change. Where a calculator models a grant, verify the current rules with the relevant official authority before relying on the result.

Our data

We publish the main data sources and update dates used by our calculators. See Sources & Data and Methodology.