He mentions renovation companies as well as builders who will undertake renovations. He has many more videos detailing the process. However, being a youtuber does open up possibilities that aren't common.
-- 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.
The tolls are quite high, too. Between Kyoto and Tokyo, which is a 6 hour drive, the tolls are about $100.
In Asia, vanlife and glamming is becoming an aesthetic almost. It’s especially popular among affluent people and influencers. People in Japan buy expensive gear such as SnowPeak, including clothing to match, just to sit in a park. With all lifestyle things in Japan, people have to dress a certain way.