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. institutional buildings
9. health and welfare buildings
10. welfare buildings

Anotations

Scope note:

Buildings used as refuges for the sick or destitute who need care rather than medical treatment; for institutional facilities treating the mentally ill, use "psychiatric hospitals" or "psychiatric clinics," and for those treating the chronically ill, use "sanatoriums."