Come here https://openprop.co.uk/rent-vs-buy-calculator
It's totally free! Put your real numbers in. Get an honest answer — deposit timeline, monthly mortgage vs rent, 5-year cost comparison, and whether your income can support the purchase.
Not sure what to do? Follow this simple walk through!
The technical proof here is strong, but I think the buyer-facing angle is getting buried.
The real story is not “my system beat Claude.” That is interesting for builders.
For users, the sharper promise is closer to:
“Ask London property questions and get answers grounded in actual Land Registry data, not AI guesses.”
That matters because property decisions are too expensive for confident-sounding estimates.
I’d probably split the positioning into two layers:
For builders: structured retrieval beats raw LLM answers on factual property analysis.
For buyers/investors: OpenProp gives data-backed answers before you make a rent, buy, relocate, or investment decision.
The calculator is also a useful entry point, but the bridge should be very direct: use the free calculator first, then ask OpenProp the follow-up questions a spreadsheet cannot answer.
Happy to put a tighter version in writing if useful. I’d map the buyer-facing positioning, first user segment, free calculator conversion path, and a simple acquisition plan around UK property search intent.