The year of construction is unknown. It is impossible to determine in which decade the building was built, information is unavailable, or the building has not been inspected sufficiently to determine its age.
This Glossary is aligned with the GEM Building Taxonomy v2, support for v4 is coming soon.
The year of construction is unknown. It is impossible to determine in which decade the building was built, information is unavailable, or the building has not been inspected sufficiently to determine its age.