In the case of our Cape Cod home, its second floor has a ceiling height of 6 feet 9 inches. Under the ANSI standard, none of that space is considered living space. Fannie Mae guidance indicates that the space should be included and valued appropriately but is not to be reported as above-grade living space; rather; it must be reported on the lower section of the adjustment grid as another item. However, bedrooms and baths found in this space are to be reported as above-grade bedrooms and bathrooms.

If you are confused, you are not alone.

A host of potential questions and problems accompanies the adoption of this standard, including how to treat functional space that’s not defined as living space by ANSI. Fannie Mae has issued an FAQ that should answer many agent questions and provide guidance to appraisers on how to deal with individual situations. In addition, Fannie Mae’s Selling Guide includes a section on how gross living area is measured and calculated.

The Quandary: Conflicting Data
Why did Fannie Mae adopt the ANSI standard? Millions of appraisals are submitted to Fannie Mae every year, and the agency determined that a national standard was needed to improve the consistency and reliability of appraisal reports when it comes to living area determinations.

Getting to that national standard is easier said than done.

Much of the information about property physical characteristics is obtained from public record sources that are usually developed by the county assessor. Some counties have adopted the ANSI rule and some have adopted the AMS. Others follow local tradition and practice. There are some differences in the two most common home measurement standards. For example, in addition to the issue of ceiling height, the AMS doesn’t include stairwells in the living area, whereas ANSI does; that leads to discrepancies between appraisals and public records.

It is in our interest, as competent real estate professionals, to be aware of the ever-changing valuation landscape so that we can help our clients better understand the appraisal and financing process. In most areas, there are likely to be only minimal discrepancies between public records and the appraisal. But when those discrepancies are significant, it’s important to understand why they exist and to be sure the space is being valued properly. Broad adoption of the ANSI standard by the secondary mortgage market would reduce confusion.