What does the lot-and-block system refer to?

The lot-and-block system refers to a method used to identify land parcels through the use of specific lot and block numbers. This system is particularly common in urban areas where land has been subdivided into lots. Each lot is assigned a number, and these lots are grouped into blocks, allowing for easy referencing and identification.

This system is beneficial because it provides a straightforward way to describe the boundaries of a property using recorded plats and maps. By utilizing lot and block numbers, it minimizes confusion and enhances clarity when addressing property ownership and transactions. This method allows for precise identification of a property's location in relation to others, which is crucial in real estate practices, particularly in densely populated regions.

In contrast, the other options do not accurately represent the purpose of the lot-and-block system. Appraising property involves determining its value rather than identifying it. Surveying land relates to measuring and mapping land but doesn't specifically involve the identification system of lots and blocks. Marketing residential properties encompasses selling practices rather than the technical identification of land parcels.