Lot and Block System Law and Legal Definition

The Lot and Block Survey System is a method used in the United States and Canada to locate and identify land, particularly for lots in densely populated metropolitan areas, suburban areas and exurbs. It is sometimes referred to as the Recorded Plat Survey System or the Recorded Map Survey System. The lot-and-block system refers to specific parcels of land by their lot number or letter and the block, or subdivision plat, in which the lot is located. The block itself is located by using either the metes and bounds system or the rectangular survey system. To identify a particular parcel of land, the lot-and-block system specifies the lot and block number, the name or number of the subdivision plat, and the name of the county and state.