There were many houses with the same design built on the steep cliffs in the Yokohama waterfront. Why were they built in such a place? Let's take a look at the history of land development.
[Main references]
Elevator World 21/Japan Elevator Association/1986
Elevator World 23/Japan Elevator Association/1988
The Man Who Eats Tokyo Bay: Where Did He Go? 100 Billion Yen Compensation/Suzuki Boichi/1964
https://suumo.jp/ms/chuko/kanagawa/sc_yokohamashinaka/nc_75936417/
https://www.jia-kanto.org/kanto/wp/wp-content/uploads/2020/10/050907b.pdf
http://www.usao.jp/usao/00030Standard Oil Company Housing/tomason00030_1.html