Tract housing development only makes use of a few designs, and labor costs are reduced because workers only need to learn the skills and movements of constructing a limited variety of home designs. In addition, as all homes in the development will be built at the same time, the cost of purchasing and transporting building supplies may be reduced due to economies of scale. Components such as roof trusses, plumbing trees, and stair systems are often fabricated in factories and installed on site. This allows contractors to reduce prices, which in turn can make homes more affordable (and more accessible to a larger percentage of the population) and may also allow contractors to reap higher profits.
Early tract homes were often identical, but more recently built tract homes no longer look identical from the exterior.
The concept of tract housing is occasionally mocked in American popular culture as the basis of a sterile and dispiriting suburbia. Nonetheless, the use of tract housing in new American suburban developments continues to dominate.