Earlier quoted context omitted.
Nobody renovates houses in Japan. You're supposed to destroy it and build anew. For 15k you're buying the lot and the right to spend a lot more than that.
How come? Is it just cultural? Are there laws against it?
-- https://www.theguardian.com/cities/2017/nov/16/japan-reusabl...
Of course, houses can be renovated - as the article explains. But going along with a country's traditional building methods is often cheaper than bucking the trends.