A western-style building for office use and a school building and auxiliary buildings for Muko Middle School (a private school opened in 1911) were built on the step lowest on the foot of the mountain; Nirakuso's main building was built on the middle step, while the highest step, at the mountain's top, held Hakuaden (Ganshui), known as "the white room", a weather station, and Sukakuro, a library and dormitory building.
山麓の下段には、事務所の洋館と学生の教育をおこなう私塾・武庫中学（明治44年1911年）開校の校舎と付属館、中段には二楽荘本館、上段の山頂には純白の窮屋と称せられる白亜殿（含秀居・がんしゅうい）、測候所、図書館兼宿舎の巣鶴楼（すかくろう）などが配置された。