Delineation of the various residential areas indicating for each such area its general extent, size and composition in terms of total number of dwelling units, approximate percentage allocation by dwelling unit type (i.e., single-family detached, duplex, townhouse, garden apartments, high-rise) and general description of the intended market structure (i.e., luxury, middle-income, moderate-income, elderly units, family units, etc.), plus a calculation of the residential density in dwelling units per gross acre (total area including interior roadways) for each such area.