There are three classifications of multiple dwelling unit buildings:
•Buildings with two dwelling units (duplexes): Each dwelling unit is modeled as an individual single family building.
•Buildings consisting of townhouse style dwelling units. These have no common ceilings or floors between dwelling units. Each dwelling unit is modeled as an individual single family building.
•Buildings consisting of three or more dwelling units that are not townhouses (R-2 occupancy group). Model as a multifamily building.