Kankyū-an

A one-mat-plus-daime tea room that has become almost a byword for Mushakōjisenke. It was founded by Ichiō, Rikyū's great-grandson and the school's founder. Destroyed by fire several times and rebuilt each time, the present building was rebuilt by Yūkōsai in 1926.

A distinctive plan places a board about 16 cm wide between the one-mat guest seat and the daime host's mat. Two lattice windows open to the east, the crawl-in entrance and another lattice window to the south, and the preparation room adjoins on the north. Entering by the host's door, a half-mat board serves as a step-in; the hearth is cut mukō-giri, and there is a daime-width alcove at the lower seat.

A single-storey timber building with a tiled roof, its verges and eaves shingled, 11 m² in area; it was registered as a Tangible Cultural Property in 2004. A private room of the head family; not open to the public.