For the purposes of this chapter, the following terms shall have the meanings indicated:
Includes the division of any parcel of land (including any contiguous property in common ownership, regardless of lot lines or tax lot lines) into two or more lots, plots, sites, units or other division of land, or the change in any lot line for any existing parcel of land or any lot, whether or not such division or change results in any new streets or changes in existing streets.