What is a manufactured home and how does it differ from a modular home? A manufactured home (also known as a mobile home) is a single or multi-sectional home built on a permanent frame, like a steel undercarriage/chassis, with a removable transportation system (hitch and wheels). The unit is permanently attached to a site-built foundation and is subject to the 1976 federal standards established by the Department of Housing and Urban Development (HUD). A modular home is constructed in a factory using conventional home floor joists and delivered to a site on a trailer or flat bed truck. The delivered home may be in the form of panels that are assembled at the site, may be pre-cut and assembled on site, or may be pre-built and delivered in one piece. The home, panels or pre-cut panels are lifted from the trailer and attached to a foundation. A modular home may be single or multi-storied. Modular homes are not subject to HUD standards, but must be built to state and local Uniform Building Codes.  A new type of  maufactured home is also being added to this mix and that is an on chassi modular home which is currently being treated the same as a manufactured home for reporting processes