Residential structures designed to house more than one family unit are diverse, ranging from duplexes containing two units side-by-side or stacked, to apartment buildings with numerous dwellings under a single roof. Other configurations include townhouses, which provide individual entrances and often shared walls, and converted single-family houses adapted to accommodate multiple tenants. Each type presents distinct ownership models, structural characteristics, and regulatory considerations.
Such properties play a significant role in addressing housing demands, particularly in densely populated areas where land is a premium. They offer diverse housing options, catering to varying income levels and household sizes. Historically, these dwellings have evolved to meet changing societal needs, from accommodating immigrant populations in urban centers to providing affordable rental options during economic downturns. Their prevalence contributes to community diversity and economic stability.