For the purposes of this chapter, unless the context otherwise requires, “subdivision” means the division of a lot, tract, or parcel of land, creating one or more lots, tracts, or parcels for the purpose, whether immediate or future, of sale or of building development, and any plat or plan which includes the creation of any part of one or more streets, public easements, or other rights of way, whether public or private, for access to or from any such lot, tract, or parcel, and the creation of new or enlarged parks, playgrounds, plazas, or open spaces.