Oh, those kind of houses are definitely available in Japan. Houses in Japan are worth negative money; if you want to sell one the buyer will want you to knock it down first.
The reason they're so cheap is that nobody wants to live in those areas because cities are better and have better jobs.
There's also a culture in Japan that houses are essentially disposable. Whereas on the east coast at least of the US, 100-200 year old houses aren't rare. The default may be to do some renovations if you buy one but not to knock it down. And a lot of those houses may not be in cities but they're often within an hour or so and many of the jobs are outside the cities anyway.
The reason they're so cheap is that nobody wants to live in those areas because cities are better and have better jobs.