The following space is now on sale. The price is approximately 30,000,000 yen ($309,278.35 €238,095.24). You need additional cost to build a house besides 30,000,000 yen ($309,278.35 €238,095.24).
In Tokyo, price of real estate is expensive.
Its space is 44 square meters.
I think new land owner will have to install some system to drain away off rain water.