For appraisers and lenders who may need training or a refresher, there are many classes available to help them learn or refresh their knowledge of the ANSI standard. Appraisers can always contact Fannie Mae with questions or feedback on appraisal topics. Copies of the ANSI standard may be purchased at the link below.
This national standard, developed by an American National Standards Committee, provides a voluntary method for measuring square footage in single-family detached and attached homes. It effectively reconciles variations in current approaches for determining square footage. The standard delineates the calculation and reporting of above-grade and below-grade square footage in single-family houses. Kindly note that this standard does not apply to apartment/multifamily buildings and does not encompass room dimensions.
