Abstract: Systems are described involving (i) a plurality of columns disposed around the object to be lifted, each column having a rack extending longitudinally along one side thereof (ii) means for carrying the object (iii) means keeping the columns upright during lifting and supporting operations (iv) means at the base of the columns to keep them from sinking in the terrain (v) a jacking system on each column and connected to (ii) so that the object can be raised in step-by-step fashion by means of a rack and pawl system and (vi) driving means to operate the jacking systems either in unison or individually as desired. Building modules or the like are raised and held in place by the system while a permanent supporting structure is placed, erected or constructed thereunder.