In my town the pre fab home are different then the mobile homes (trailor). Pre fabbed are constructed on the property and the mobile homes are towed and set up on the property. My area has a no mobile home zoning law, but a pre fab home is considered a built home. In my area a manufactured home and mobile home means the same as a trailer but a pre fab home is not. Every storm the local news is saying leave your mobile or manufactured homes for safety.