This shingled gable roof building that was constructed in 1589 using funds donated by Takakage KOBAYAKAWA is believed to be the oldest surviving Zen temple kuri in Japan and retains a sense of what life was like within a Zen temple.
天正17年（1589年）に小早川隆景の寄進によって建立された切妻造・板葺の建物で、日本で現存最古の禅宗寺院の庫裏とされ、禅宗寺院の生活様式を今に伝える。