In order to classify, regulate, restrict and segregate the uses of land and buildings;
to regulate the height and size of buildings; to regulate the area of setbacks and
other open spaces around buildings; and to regulate the density of population, the
following classes of use zones are established along with their abbreviations and
minimum lot areas. Alternative minimum lot areas may be established pursuant to Section 8171-9.1 et seq. Minimum lot area requirements are expressed in "gross" area for land uses
and structures. The minimum lot area for subdivision purposes is expressed in "net"
area for parcels of less than ten (10) acres, and "gross" area for parcels of ten
(10) acres or more.