1) Fabrication 2) Manufacture 
Prefabrication is the practice of assembling components of a structure in a factory or other manufacturing site, and transporting complete assemblies or sub-assemblies to the construction site where the structure is to be located. The term is used to distinguish this process from the more conventional construction practice of transporting the basi...
the assembly of buildings or their components at a location other than the building site. The method controls construction costs by economizing on ... [4 related articles]
[n] - the manufacture of sections of a building at the factory so they can be easily and rapidly assembled at the building site
noun the manufacture of sections of a building at the factory so they can be easily and rapidly assembled at the building site