Cluster of buildings and land used by an institution
A campus is by tradition the land on which a college or university and related institutional buildings are situated. Usually a college campus includes libraries, lecture halls, residence halls, student centers or dining halls, and park-like settings. A modern campus is a collection of buildings and grounds that belong to a given institution, either academic or non-academic. Examples include the Googleplex and Apple Park. Etymology.
https://en.wikipedia.org/wiki/Campus