There are two options for bringing CAD/building information modeling (BIM) data into ArcGIS Urban:
CAD/BIM integration through ArcGIS CityEngine: The Urban-CityEngine integration allows the importing of data of different 3D formats (dxf, dae, fbx, glTF, kml/kmz, obj) into CityEngine, and from there the models can be attached to an ArcGIS Urban scenario directly.
CAD/BIM integration through ArcGIS Pro: ArcGIS Urban can display SceneLayers and BuildingSceneLayers that have been published through ArcGIS Pro. These layers can come both from CAD applications or Autodesk Revit BIM data After publishing the layers from ArcGIS Pro, they can be linked as external sources in a scenario of a project/plan in ArcGIS Urban.