The top floor is of the irimoya-zukuri style, the 1st and 2nd floors are of the yosemune-zukuri style, and the 2nd floor is encircled by a handrail and corridor offering a view of the surrounding area.
最上階が入母屋造、1，2階は寄棟造で、2階の周囲には見晴らし用の廊下と手すりが配されている。