To the western edge of the Mittanseki tearoom is an engawa veranda separated by a translucent sliding screen, to the south is a ten tatami mat sized room separated by an opaque sliding screen, to the northeast is the host's tea preparation area, and on the west of the northern wall is an alcove.
密庵席は西側の縁側境を明障子、南側の十畳間との境を襖で仕切り、東北側に手前座、北側壁の西寄りに床の間を設ける。