In order to improve the efficiency of the modeling work for cyber restoration of historical city, a house structure description language has been proposed and developed. Each house structure is described by a series of simple words that indicates house construction part's ID. Width and height of each part is based on 90cm as a basic unit. Because we noted that the standard of the main parts of houses had become settled in width of 90cm, and height of 180cm. It is shown that various kinds of houses can be efficiently generated by our technologies to restore a historical city Edo.