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 design]

Anotations

Scope note:

Structures that are surrounded by earth on all sides or on all sides except overhead, typically creating an almost invisible profile on the landscape and a green ideal in the savings of fuel and insulating materials. Structures that are surrounded by earth on all sides or on all sides except overhead, typically creating an almost invisible profile on the landscape and a green ideal in the savings of fuel and insulating materials.