| In architecture and city planning, a terrace, rowhouse, or townhouse (though the latter term can also refer to patio houses) is a style of housing in use since the late 17th century, where a row of identical or mirror-image houses share side walls. The first and last of these houses is called an end terrace. |

Post-war terraced houses in Stanford in the Vale, Oxfordshire , UK
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In the United States
In New York City , a large apartment building occupying a full city block, London Terrace, finished in 1930/1931 capitalized on the earlier, more stylish connotation.
Terrace housing in American usage generally continued to be called townhouses in the United States , with a distinctive type found in New York City , among other cities, called a brownstone.
In Philadelphia , Baltimore , San Francisco , and Washington , they are simply called rowhouses or rowhomes, and are very common. In much of the Southern United States , they are referred to as rowhomes. The oldest continuously occupied road in America , Philadelphia 's Elfreth's Alley, is lined with rowhouses. |

Rowhouses in Baltimore 's Charles Village neighborhood
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