Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Built Environment (hierarchy name)
4. Single Built Works (hierarchy name)
5. single built works (built environment)
6. [single built works by specific type]
7. [single built works by function]
8. residential structures
9. dwellings
10. [housing by ownership]
11. communal housing

Anotations

Scope note:

Use when referring to a semi-independent group living arrangement, usually for the elderly, where some shared common space and some support services, such as housekeeping, transportation, and social activities, but not personal care, are provided; used in the United States since the 1960s.