A detailed survey map of a subdivisionrecorded in the county where the land is located.Subdivided property is often called plattedproperty. Also called: Plat Map.
Merriam-Webster Online Dictionaryplat
a small piece of ground (as a lot or quadrat) - plot
a plan, map, or chart of a piece of land with actual or proposed features (as lots) , also the land represented
to make a plat of