Building site is a term used to describe the area of land where a building or structure is being constructed. It typically includes the PLOT, ACRE, and LOT of land that will be used for the construction. A PLOT is a small piece of land, usually measured in feet or meters, that is used for a specific purpose. An ACRE is a unit of measurement that is equal to 4, 840 square yards or 43, 560 square feet. A LOT is a parcel of land that is typically larger than an ACRE and is used for residential or commercial purposes.