Hierarchy classification:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts (hierarchy name)
4. [concepts in the arts and humanities]
5. [genres in the visual arts]
6. architecture genres

Anotations

Scope note:

Built works, particularly in a modern urban environment, that have emerged from anonymous creators, inspired by the desire to build things or to modify and personalize space. Spontaneous architecture is communal and social, often exploring non-traditional construction materials and with immediate technology.