Abstract: A paving stone unit and a method for creating paving assemblies therewith, comprising a plurality of regular paving stone units and of notched paving stone units laid one adjacent the other, separated by lines of joint, the notched paving stone units breaking the continuity of the lines of joint, the regular paving stone units and the notched paving stone units being randomly installed from mixed skids thereof, the paving assembly having a randomized layout.

Abstract: A block connector for pre-cast building blocks comprising a top body portion to be fitted into the bottom surface groove of an upper block and a bottom body portion to be fitted into the top surface groove of a lower block. The top and bottom body portions define three pairs of lateral sides. When mounting the blocks about first pair of lateral sides no offset between the blocks is provided. When mounting the blocks about the second pair of lateral sides, an offset is provided. When mounting the blocks about the third pair of lateral sides, an offset is provided that is greater than the offset of the second pair of lateral sides. A kit for building walls including a plurality of these blocks and block connectors is also disclosed.