On the corner of Harada’s Castle (Toyonaka city designated cultural property ) that was built during middle age by the local clan of Harada, the house is built on it. It was built in Shoraien-residential district that was developed in early Showa period. Kouichi Hamuro, Sumitomo corporation executive, built the house in 1937 (Showa 12）. The main two-story wooden building (include detached rooms ) with tiled- roof, two-story storehouse with thick earthenwalls, and a flat barn are on the ground.