Attributed Parcels in AutoCAD
To create attributed parcels in AutoCAD I draw closed polylines on an AutoCAD layer that I have named PARCELS. Since I have downloaded and installed ArcGIS for AutoCAD, all I need to do to store the parcel identification number (PIN) on my parcels is to go to the feature class management tab on the ArcGIS for AutoCAD ribbon and define a feature class that identifies the AutoCAD layer named PARCELS as the distinguishing filtering criteria for my parcels and then add a STRING attribute definition to the schema called PIN.
ArcGIS for AutoCAD and ArcGIS now understand that my AutoCAD drawing contains attributed PARCEL features. These parcel features are comprised of any closed polylines, with or without curves on the PARCELS layer. By simply using the AutoCAD entity property panel I can edit the parcel identification number (PIN) for any of the parcels. To draw a new parcel I just continue to draw parcels like I always do with closed polylines on the AutoCAD layer called PARCELS. The Parcel Identification number (PIN) is now just a property of the entity that I can modify with the entity property panel.