Prefabricated, or 'prefab,' cottages are modern homes built in a controlled factory environment in sections, and then transported to your chosen site for assembly. One of the most significant benefits of prefabricated construction is cost savings. While custom-made parts appear to be more costly, this is not the case for prefabricated or modular construction. Modular structures are quickly disassembled and moved to various locations. This lowers the demand for raw materials, reduces energy consumption, and saves time overall.