As an experienced real estate agent in Austin, Texas, I have come to acknowledge that many people expect a townhome to be a freestanding unit, much like a duplex or residence. This is not always the case. By classification, it’s a “row” of houses. Generally individuals compare our townhomes with “row houses” along the lines of the ones in New York City. A picture that one thinks of would probably be “the Cosby Show” dwelling. San Antonio’s a little distinct in the definition of a 'townhome'