Evolution of Factory-Built Housing. From Trailer House (1930s) to Mobile Homes (circa 1950s to mid-1970s) to manufactured housing and finally modern Manufactured Homes. Definitions and terminology for factory-built housing are not interchangable. Mobile home, manufactured home, modular housing, and trailer house are all distinctive terms … Continue reading LendingTree “Mobile Home Values Are Rising Faster Than Single-Family” Homes-Why Manufactured Homes Appreciate/Depreciate