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 condition]
8. abandoned structures

Anotations

Scope note:

Designates buildings or groups of buildings that are abandoned by their owners, often constituting potential public hazards. In a legal connotations, the term does not include buildings that are temporarily vacant or unoccupied.