Hi, I'm Lorentz (entzuyeung).

I develop open-source tools that make the London property market more transparent and understandable.

My current main project is the OpenProp — an interactive AI assistant that answers practical questions about median prices, borough rankings, affordability trends, new-build vs resale comparisons, and market changes, all based on official HM Land Registry Price Paid Data.

To ensure complete trust, I also publish independent verification notebooks so anyone can see exactly how each number is calculated from the raw source data.

If you value transparent, data-driven open source work and want to support ongoing development and maintenance, your sponsorship would mean a lot and help keep these tools free and open for everyone.