This old house of the Mitobe family in Historical Museum of Hokkaido in Date City is the oldest existing house of a farmer who moved from the Sendai domain (present-day Miyagi Prefecture) and was engaged in the development of the land in Hokkaido. It was nationally designated as an Important Cultural Property in 1971.

The house was built at the time of their settlement in 1872 by a carpenter from Watari in the Sendai domain. It was a house in Yosemune-zukuri style with thatched roof and has two rooms and the doma (the earth floor space). The traditional wood joinery techniques typical of the Sendai area in those days are employed and no nails were used.

Built almost at the same time as the construction of Tondenhei barracks, this old house is a precious historic site that tells us of the development history of Date City.