Field Density

Responsibilities for the administration of US property falls upon local governments, especially counties. These local governments usually make property data available as public records. In the absence of national standards, each local government can take its own approach as to what property data it makes available when it is made available, and in what format. Local governments typically collect data based on their own needs. As needs vary from one county to another this results in many inconsistencies in the data.

ATTOM plays an important role in the collection of a lot of this data, standardizing it into a consistent format before making it available as part of a national property database (ATTOM Cloud).

Field Density Report

Some of the fields are designed to contain a finite number of values. e.g. RoofingKey can have values such as 104 - Tile, 110 - Slate, 111 - Aluminium. In total, there are 37 different types of roofing. If your project is targeting a specific type of roof, it