Property renovation intelligence
Know your numbers
before you commit.
Free renovation and extension cost calculators for UK homeowners — built on real market data. No guesswork, no surprises.
Free renovation and extension cost calculators for UK homeowners — built on real market data. No guesswork, no surprises.
Free tools
Each tool delivers instant intelligence based on your property, location and project scope — in under 2 minutes.
Enter your numbers — purchase price, reno cost, target sale price — and get a full profit breakdown, ROI, risk flags and a detailed intelligence report. Built for UK property investors.
Get a cost estimate for any level of renovation — from a cosmetic refresh to a full structural overhaul. Covers all UK regions, property types and specification levels.
Estimate costs for rear extensions, side returns, wraparounds, two-storey additions and loft conversions. Includes structural complexity and specification adjustments.
How it works
Select the renovation or extension calculator depending on your project.
Tell us about your property, location, scope and specification level.
Receive an instant cost range with a full line-item breakdown.
Upgrade to a full Intelligence Report with risk analysis and project timeline.
Intelligence Reports
For £19, our Intelligence Reports give you a structured analysis of your project — written for homeowners, not architects.
Guides & insights
Practical guides written for UK homeowners — from cost planning to finding the right contractor.
A region-by-region breakdown of average renovation costs, from cosmetic refreshes to full structural overhauls.
Extension costsSingle storey rear extension costs vary from £30k to £120k+ depending on size, location and specification.
Planning & processThe expenses that blow renovation budgets — and how to plan for them before you start on site.