Abstract: A building constructed from free standing precast stress bearing will modules by placing the elements in a trench, pouring a flowable material therein, and allowing the flowable material to set. Metallic elements extending from the wall into a recess in the bottom of the wall interconnect with the flowable material in the trench to form an integral unit of the set flowable material and the wall module. For subsequent stories, the free standing precast stress bearing wall modules include a pocket in their lateral wall to provide access to the interconnection for the fastening of a plate embedded adjacent the bottom thereof and a rib extending from the top of a lower building element.