Buildings 7, 8 and 9 were built in 1876 as residences for government officials and engineers who were assigned to postings at the Ikuno Silver Mine. Building 19 has a different layout from the other buildings, and although it is uncertain exactly when it was constructed, it is believed to have been around the time the mine was sold to Mitsubishi Limited Partnership in 1896.

The walls surrounding the dormitories are made with Edo Period karami stone, a building material uniquely used in mining towns, as it is made from the slag left over from smelting silver and copper ore. These buildings are the oldest surviving examples of employee housing in Ikuno, making them valuable relics that teach us how people lived in late-19th and early-20th century Japan. Buildings 9 and 19 are available for overnight stays.