a house that is part of a terrace

Property that forms part of a row of houses.

town house, row house

In architecture and city planning, a terrace(d), row house, 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.