Industrialized Housing is the only solution to an international problem of shortage of Housing of all the developed nations as well as developing nations. The overall integration of Subsystems and Components into an overall system or process’ with total use of Industrialized production, assembly, transportation and Erection techniques may be defined as Industrialized Housing. Manufactured Housing and Factory-Built Housing imply the same meaning as Industrialized Housing. The housing Industry in the United States is gradually moving away from on-site construction and is entering factory-built construction and a new methodology is evolving. Factory-Built Housing consists of Modular or Pre-fabricated components manufactures. Modules is Modular construction. The generally accepted definition for modular is three dimensional, self-contained, code complying Building Blocks or Sectional Homes. A Modular house is manufactured. However, a manufactured house is not always a modular. Sub-categories include single family modular units and the stack or multi-family units. Mobile homes are also manufactured housing. M obileModular units are units which are built to be code complying in every way, except that the chassis on which they travel is an integral structural part of the floor. The advantage of the mobile Modulars is that they can be permanent code-complying housing. But, by leaving the wheels attached to the chassis, they also can qualify as highway vehicles and therefore be taxed as chattel rather than real property.