Attached housing refers to dwelling units that are connected to each other on at least one side, often separated by firewalls or other physical partitions. This stands in contrast to detached housing, where structures are standalone.
A townhouse is a type of multi-story dwelling unit that is usually attached to other similar units by shared sidewalls. Typically found in planned unit developments (PUDs) and condominium developments, townhouses often combine aspects of both single-family homes and apartments.
