Property Calculators

PropertyCalculators.ai exists because we got tired of watching good investors make bad decisions. After years in development finance, we'd seen it too many times. Experienced property professionals losing money not because they lacked skill, but because they forgot to model CIL payments, miscalculated rolled-up interest, or used optimistic assumptions without realising it. One spreadsheet error can turn a £300,000 profit into a £90,000 loss. We've seen it happen. So we built something better. PropertyCalculators.ai is the UK's most comprehensive suite of property investment calculators. Over 70 specialist tools covering development finance, buy-to-let, HMO, leasehold, bridging, commercial property, serviced accommodation, and value-add strategies. Built by property finance professionals who understand how deals actually work. The Property Calculator Podcast takes this further. Each episode breaks down one calculator in detail – what it does, when you need it, and the mistakes we see investors make. Stop guessing. Start calculating.