Abstract: A three-dimensional multiple-building construction system for a plurality of three-dimensional, multiple-room housing units is described characterized in that it comprises a three-order hierarchy of frame members, the first order frame members including a superstructure framework channelling substantially the complete load of the system to the ground, the second order frame members including at least one intermediate box-like framework defining a three-dimensional open grid of beams and columns, and the third order frame members including further beams and columns attached to the beams and columns of the intermediate block-like framework as components of the housing units, such that the load of the housing units attached to the third order frame members are transmitted from the latter members to the second order frame members, from the latter to the first order frame members, and from the latter to the ground.