The second option home buyers have when considering a factory built home are Modular homes - sometimes referred to as system built homes or prefab homes. Like manufactured homes, modular homes are built in a controlled environment, utilizing cutting edge technology. A modular home can be built from existing floor plans or from custom plans. Modular homes typically cost around $55 to $80 per square foot, with many styles and designs to choose from. To learn more about modular homes please click here.