The peculiar story of modern Japanese housing

I've occasionally talked about this to Australian friends (how the attitude to domestic housing in Japan is very different from that in Australia, and perhaps most other countries), and it's good to see that my understanding was correct, as all explained at length in this very detailed article at The Guardian:

Most of those houses built in the 60s are no longer standing, having long since been replaced by newer models, finished with fake brick ceramic siding in beiges, pinks and browns. In the end, most of these prefabricated houses – and indeed most houses in Japan – have a lifespan of only about 30 years.

Unlike in other countries, Japanese homes gradually depreciate over time, becoming completely valueless within 20 or 30 years. When someone moves out of a home or dies, the house, unlike the land it sits on, has no resale value and is typically demolished. This scrap-and-build approach is a quirk of the Japanese housing market that can be explained variously by low-quality construction to quickly meet demand after the second world war, repeated building code revisions to improve earthquake resilience and a cycle of poor maintenance due to the lack of any incentive to make homes marketable for resale.

The article notes that there is a bit of a movement towards renovation rather than demolition now, but it's still nothing like the renovation industry in other countries.

The good thing about this peculiar aspect to housing is that, for the Western buyer who isn't so fussed about the age of a house, and provided they don't need to live in one of the large cities, you can buy houses very, very cheaply in much of the country.  That's assuming you want to use in it yourself, I suppose, as you don't really buy them as an investment.