Abstract
This paper concerns with the house construction of U. S. A. in 1930', when the State housing started, to define the industrialization. The points, which the author wishes to clear, are as follows. (1) the distribution and type of enterprises, (2) the activity field of eterprises, (3) the technical condition applied by firms, (4) the state's effort growing the industry. The author got the result : the distribution corresponded with housing market and type of firm became to corporation, the activity field was very confused, the construction system covering a whole were not so many, the federal housing policy were comprehensive.