A more thorough explanation:

A plat map is a legal document that provides the description of a piece of real estate. It includes the lot, street, and block number of the property. The plat map is usually created after the property has been surveyed by the government or other means. Once the plat map is prepared, the property can be described by referring to the appropriate map.

For example, if you want to buy a piece of land, you can look at the plat map to see the exact location and size of the property. The plat map will show you the boundaries of the property, the streets surrounding it, and any other relevant information.

Another example is when a developer wants to build a new subdivision. They will create a plat map that shows the layout of the new neighborhood, including the location of each lot, street, and block. This plat map will be used to sell the lots to potential buyers and to obtain the necessary permits from the local government.

These examples illustrate how a plat map is an essential tool for anyone involved in buying, selling, or developing real estate. It provides a clear and accurate description of the property, which is necessary for legal and practical purposes.