Lot and Block survey system
Overview
 
The Lot and Block Survey System is a method used in the United States and Canada to locate and identify land, particularly for lots
Lot (real estate)
In real estate, a lot or plot is a tract or parcel of land owned or meant to be owned by some owner. A lot is essentially considered a parcel of real property in some countries or immovable property in other countries...

 in densely populated metropolitan areas, suburban areas and exurbs
Commuter town
A commuter town is an urban community that is primarily residential, from which most of the workforce commutes out to earn their livelihood. Many commuter towns act as suburbs of a nearby metropolis that workers travel to daily, and many suburbs are commuter towns...

. It is sometimes referred to as the Recorded Plat Survey System or the Recorded Map Survey System.
The system is the most recent of the three main survey systems. It began to be widely employed in the United States in the 19th century when cities began to expand into the surrounding farmland.
 
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