| Container IFC Site or Building | C | Container IFC Site or Building, Optional if connected to IFC Project as Root | Geometry |
| Global ID | G | Optional Global identifier (GUID) formated to IFC string syntax. Automatic assignment if empty | Text |
| Name | N | Building Name | Text |
| Desc | D | Optional Building Description | Text |
| BuildingType | T | Optional Building Type Description | Text |
| Representation | R | Optional IfcShapeRepresentation | Geometry |
| LongName | L | Building Long Name | Text |
| Building Composition | C | Composition of Building, appropriate if hierarchy of buildings are generated(0=NOTDEFINED 1=COMPLEX 2=ELEMENT 3=PARTIAL) | Integer |
| ElevationOfRefHeight | E | ElevationOfRefHeight | Number |
| ElevationOfTerrain | T | ElevationOfTerrain | Number |
| Address | A | IfcAddress | Generic Data |
| Placement | P | Optional Placement Plane | Plane |