| Host | H | IfcSite or IfcFacility as host, Optional if connected to IFC Project as Root | Geometry | 
| GlobalId | 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 | 
| ObjectType | T | Optional Object Type Description | Text | 
| Representation | R | Optional IfcShapeRepresentation | Geometry | 
| LongName | L | Long Name | Text | 
| Composition | C | Composition(0=NOTDEFINED 1=COMPLEX 2=ELEMENT 3=PARTIAL) | Integer | 
| Type | T | Type (0=NOTDEFINED 1=USERDEFINED 2=CANAL 3=WATERWAYSHIPLIFT 4=REVETMENT 5=LAUNCHRECOVERY 6=MARINEDEFENCE 7=HYDROLIFT 8=SHIPYARD 9=SHIPLIFT 10=PORT 11=QUAY 12=FLOATINGDOCK 13=NAVIGATIONALCHANNEL 14=BREAKWATER 15=DRYDOCK 16=JETTY 17=SHIPLOCK 18=BARRIERBEACH 19=SLIPWAY 20=WATERWAY) | Integer |