What are some common types of two-family homes?

Multifamily homes, including two-family homes, can also take the form of semidetached houses, townhouses or mixed-use buildings, according to My Realty Times. Multifamily homes are the least common residential dwelling, according to Redfin.

Multifamily homes most often take the form of duplexes in which each family has a separate unit with a separate entrance. Often the owner lives in one unit and rents the other out. Multifamily homes differ from condos in that typically one owner owns the entire building, rather than each unit being owned separately, as Redfin explains. Multifamily homes are most often found in urban environments and are often safe investments.