P propCALC.uk
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propcalc.uk by Propreneur Free UK calculators · no sign-up
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Deal strategies

Strategy R2R SA BTL HMO BRR Flip BMV Commercial Development

Financial & quick tools

NPV / IRR DSCR Multiples CoC / ROE LTV Breakeven SDLT Bridging Mortgage Yield BTL ROI Void Skip CGT Affordability Refurb Snagging

About this calculator

Free UK property calculator with show-your-working steps. No sign-up required to run numbers.

Related tools

Did you know?

Pair propcalc with market-data tools for comps; use these calculators to decide if the deal actually stacks after all costs.

UK context

Small-scale development / commercial-to-residential conversion: development finance (LTC/LTV caps), 12-24 month build, exit via sale, refinance or supported housing lease.

Calculator

Development (commercial-to-residential)

Small-scale commercial-to-residential conversion: GDV, GDC, development finance, sell vs hold refinance, supported housing exit.

Inputs

Enter values in the panel below.

Run calculator

Runs against the live API. Nothing is stored. Use Sign up to save results.

Sensitivity scenarios

Sign up to save deals

Create a free Propreneur account to save these numbers against a property.

Optional overrides - mortgage estimate for BTL / commercial

Uses offer price, monthly rent, and monthly expenses (x12 as annual opex) from the form above.

Show working

See every formula, your numbers plugged in step by step, and where each cost comes from. No other UK property calculator shows its maths like this.

Save this as a PDF deal pack

Run the calculator, then enter your email for a PDF summary (usually within a few minutes). Sign up to Propreneur for watermark-free packs and saved deals.

Calculate your deal first; the PDF uses your latest results.

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