Free Tools Built to Help
Your Project
We've invested heavily in data and technology into these tools—so you can make confident decisions about your property, completely free.
Each tool draws on our extensive database of UK planning applications, project costs, and property data.
Extension Cost Calculator
Get an instant estimate of your extension costs based on your location, extension type, and size. Powered by real project data from across the UK.
Extension Potential Checker
Discover what extension possibilities exist for your property based on your postcode and property details. Built from hundreds of planning applications.
Excellent
Permitted Development Checker
Find out if your project falls under permitted development rights or requires full planning permission. Based on current UK planning legislation.
Permitted
No planning application required
Property Intelligence Report
Usually £15+ ValueGet detailed insights about any UK property including flood risk, planning history, local schools, and sold prices. We aggregate data from multiple authoritative sources.
Flood Risk Report
Get a comprehensive flood risk assessment for any UK property. Includes river, surface water, and coastal flood risk data from the Environment Agency with detailed maps and risk scores.
Why We Invested in These Tools
Over the years, we've gathered invaluable data from every project we've completed—costs, timelines, planning outcomes, and more. Rather than keep this knowledge locked away, we built these tools to share our insights with every homeowner considering a project. Information should empower you, not be a barrier.