Square Footage – Method for Calculating: ANSI Z765-2021

This standard for measuring square footage in single-family detached and attached homes, developed by an American National Standards Committee, is the first national standard to reconcile differences in current methods for determining square footage.

*This is not a course. This is the ANSI Z765-2021 Standard, but we are using our learning system to deliver this securely as required by our license agreement. Once you purchase the Standard, it will be unlocked as a course in your student account and you’ll be able to access it as a PDF for download/print.

$25 ANSI Z765-2021 Standard

As of April 1, 2022, Fannie Mae will require appraisers to measure subject property improvements using the Square Footage – Method for Calculating: ANSI (American National Standards Institute) Z765-2021 Standard.

This standard describes the procedures to be followed in measuring and calculating the square footage of detached and attached single-family houses.

It is the purpose of this standard to describe a method of measurement that will make it possible to obtain accurate and reproducible measurements of square footage in single-family houses.

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