| — | | — | IfcBuiltSystem |
| A10 | Ehitise ristlõikeline osa | — | IfcFacilityPart·LATERAL |
| A20 | Ehitise pikiosa | — | IfcFacilityPart·LONGITUDINAL |
| A30 | Ehitise tasapinnaline jaotus | — | IfcFacilityPart·REGION |
| A40 | Ehitise vertikaalne jaotus | — | IfcFacilityPart·VERTICAL |
| A71 | Maapealne osa | — | IfcFacilityPartCommon·ABOVEGROUND |
| A72 | Maa-alune osa | — | IfcFacilityPartCommon·BELOWGROUND |
| A81 | Ristmik | — | IfcFacilityPartCommon·JUNCTION |
| A82 | Eriliigiline ristmik | — | IfcFacilityPartCommon·LEVELCROSSING |
| A83 | Vahesegment | — | IfcFacilityPartCommon·SEGMENT |
| A73 | Alusehituse osa | — | IfcFacilityPartCommon·SUBSTRUCTURE |
| A74 | Pealisehituse osa | — | IfcFacilityPartCommon·SUPERSTRUCTURE |
| A84 | Lõpetav segment | — | IfcFacilityPartCommon·TERMINAL |
| A80 | Horisontaalne ehitise ühisosa | — | IfcFacilityPartCommon |
| A70 | Vertikaalne ehitise ühisosa | — | IfcFacilityPartCommon |
| A52 | Veepealne osa | — | IfcMarinePart·ABOVEWATERLINE |
| A51 | Veealune osa | — | IfcMarinePart·BELOWWATERLINE |
| A53 | Lüüsi alumine osa | — | IfcMarinePart·CILL_LEVEL |
| A54 | Sadamakai teenidusosa | — | IfcMarinePart·COPELEVEL |
| A55 | Kõrgveepiiril olev osa | — | IfcMarinePart·HIGHWATERLINE |
| A56 | Madalveepiiril olev osa | — | IfcMarinePart·LOWWATERLINE |
| A50 | Vesiehitise vertikaalne jaotus | — | IfcMarinePart |