What is the most common use of mass appraisal for real property?

Mass appraisal refers to the process of valuing a large number of properties at once, typically using standardized methods and data to ensure that assessments are consistent and fair across similar types of properties. The most common use of mass appraisal is in the context of ad valorem tax assessment.

Local governments often use mass appraisal techniques to determine the value of properties for taxation purposes, ensuring that property taxes are assessed fairly based on the market value of similar properties within the jurisdiction. This approach helps to streamline the assessment process, making it both efficient and cost-effective, as it eliminates the need for individual appraisals for each property.

In contrast, while the other options listed have relevance in real estate, they do not represent the primary purpose of mass appraisal. Lender portfolios and mortgage origination involve more specific assessments that are not typically handled through mass appraisal methods, and commercial appraisals often focus on individual properties rather than a mass approach. Therefore, ad valorem tax assessment stands out as the key application of mass appraisal processes in real estate.