What is mass appraisal?

Mass appraisal is defined as the process of valuing a group of properties simultaneously. This approach is essential in the field of property assessment, particularly for tax purposes, where numerous properties must be appraised efficiently and fairly to determine their value for taxation.

In mass appraisal, techniques such as statistical analysis, computer-assisted mass appraisal (CAMA) systems, and standardized methodology are utilized to ensure that similar properties are assessed consistently. This is particularly important because individual property assessments can vary widely if done separately, potentially leading to inequities in property taxation.

The need for mass appraisal arises from the requirement that all properties within a jurisdiction be assessed at fair market value. By appraising a group of properties at once, assessors can also leverage data and market trends more effectively, leading to a more accurate and equitable assessment outcome.