A terrace or terraced house, or townhouse is a type of medium-density housing which first started in 16th century Europe with a row of joined houses sharing side walls. In the United States and Canada
East side of the Place des Vosges in Paris, one of the earliest examples of terraced housing
Vicars' Close, Wells, built 1348–1430
Rows of terraced houses at 112-116 Canterbury Road Middle Park, Melbourne
Terraced housing at 435 Glebe Point Road, Glebe, Sydney
A semi-detached house is a single-family duplex dwelling that shares one common wall with its neighbour. The name distinguishes this style of construction from detached houses, with no shared walls, a
Terraced house
…build row houses at a high rate, with 62% of housing starts in the metropolitan area being apartment or row units. Apartment complexes, high-rises, and semi-detached homes are less popular in Montreal when compared to large Canadian cities like Toronto or Vancouver but similar to some US cities, in particular Philadelphia…
1950s council built semi-detached PRC houses in Seacroft, Leeds, West Yorkshire
The Paragon in Blackheath
1890s middle-class semis in Blackheath, London
Semi-detached council house in Seacroft, Leeds, West Yorkshire