Abstract: A computer-implemented method for manipulating real property data for a plurality of properties is provided. The computer-implemented method includes identifying boundary specifications for clustering the plurality of properties, thereby forming a plurality of basic data blocks. Each of the plurality of data blocks corresponds to a subset of the plurality of properties and has boundaries delineated in accordance with the boundary specifications. The computer-implemented method also includes identifying a common attribute among properties in each of the plurality of basic data blocks. The computer-implemented method further includes representing each of the plurality of basic data blocks with a respective attribute value associated with the common attribute.