Tract housing, sometimes informally known as cookie cutter housing, is a type of housing development in which multiple similar houses are built on a tract (area) of land that is subdivided into smaller Land lot. Tract housing developments are found in suburb developments that were modeled on the "Levittown" concept and sometimes encompass large areas of dozens of square miles.
Tract housing development makes use of few architectural designs, and labor costs are reduced because workers need to learn the skills and movements of constructing only those designs rather than repeat the learning curve. In addition, as all houses 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 , plumbing, and stair systems are often Prefabrication in factories and installed on-site. This allows builders to offer lower prices, which in turn can make houses affordable to a larger percentage of the population. Early tract houses were often identical, but many tracts since the late 20th century have several designs and other variations in footprint, roof form, and materials, along with options such as garage bays, for a more diverse appearance.
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