A mass-produced building is a structure that is constructed in large quantities using a standardized design and assembly line production processes. Synonyms for this type of building include prefab building, modular structure, pre-engineered building, fabricated unit, and system-built construction. These structures are typically used for housing developments, commercial buildings, and industrial facilities. While they may lack the uniqueness and character of a custom-built structure, mass-produced buildings offer a cost-effective and efficient solution for meeting the demand for housing and commercial space. With advancements in technology and building materials, these types of buildings continue to improve in quality and design.