Contrary to popular belief, the concept and building of modular homes are not of recent vintage. Beginning in 1895, Sears, Roebuck & Co. offered do-it-yourself home kits and building plans, sold via mail order. From 1908–1940, about 500,000 of these homes were sold. From 1945 on, when soldiers returning from World War II needed affordable homes to be built as quickly as possible, modular construction has become an accepted part of home building in the United States.
Most of us are accustomed to site-built, or “stick-built” homes, which are constructed at the building site. In contrast, modular homes are built off-site, section by section, at a factory. Modular homes must conform to state and local building codes. At the building site, local building inspectors check for compliance.