noun
administrative building; administration building
Refers to a building on a campus, hospital, factory, or similar site where administrative offices are located.
病院の管理棟は正面玄関の右側にあります。
The hospital's administrative building is to the right of the main entrance.
大学の管理棟で手続きをしてください。
Please complete the procedures at the university's administration building.
校舎 is a school building (classrooms, etc.), whereas 管理棟 is the administrative building on a school campus.
Compound of 管理 (kanri, 'management, administration') and 棟 (tō, 'building, wing').