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Mastering Home Appraisals: Accurate Square Footage Calculation Using ANSI Standards

Mastering Home Appraisals: Accurate Square Footage Calculation Using ANSI Standards

Appraisers, buyers, sellers, realtors, and other real estate professionals often calculate GLA, also known as gross livable area, using specific guidelines. The American National Standards Institute (ANSI) provides the standards for Fannie Mae transactions. These standards are used to ensure consistency and accuracy in appraisals.

ANSI Standards

For single-family homes, manufactured homes, and townhouses, Fannie Mae requires the use of ANSI standards to calculate square footage. However, these standards are not required for desktop appraisals, apartment-style properties, or multi-family properties. The ANSI standards help define what constitutes living space, ensuring that measurements are consistent across different appraisals.

Differences in Calculations

The figures calculated using ANSI standards often differ from those used by buyers, sellers, county auditors, and other real estate professionals. This discrepancy can lead to confusion, especially when different lenders have varying requirements. While other government lending institutions like Freddie Mac, FHA, and the VA accept the ANSI standard, they are not mandated to use it.

Why Some Lenders Include Certain Square Footage

Lenders may have different policies on what square footage can be included in an appraisal report. This can depend on the type of property, the specific lender’s guidelines, and the intended use of the appraisal. Understanding these differences can help alleviate confusion and ensure that all parties involved have a clear understanding of the property’s value.

Appraising different types of homes can present significant challenges

Cape Cod Homes: The ANSI standard aims to provide uniformity but can cause confusion and potentially affect the appraised value of homes with unique features like low ceilings. These homes often have finished upper levels with ceiling heights less than 7 feet. According to the American National Standards Institute (ANSI), these areas, although livable, cannot be included in the total finished square footage for Fannie Mae appraisals. Instead, this finished space is noted separately in the appraisal report, with adjustments made accordingly. Other agencies like Freddie Mac, FHA, and the VA may include this space as Gross Livable Area (GLA).

Bermed Earth-Sheltered Homes: These homes, which may be partially or fully covered with earth, present another challenge. ANSI guidelines might initially suggest these homes have zero GLA, but exceptions can be made through specific processes.

Key Points of ANSI Standards

  • Measurement Precision: Measurements are taken to the nearest inch, and final square footage is reported to the nearest whole square foot.
  • Staircases: Included in the square footage of the floor from which they descend.
  • Basement Areas: Finished areas below grade are considered basement space and are not valued equally with above-grade finished space.
  • Open Areas: Spaces like two-story foyers are not included in finished square footage.
  • Ceiling Heights: Finished areas must have a ceiling height of at least 7 feet. Rooms with sloped ceilings must have at least 50% of the area with a 7-foot ceiling, and areas with less than a 5-foot ceiling are excluded.
  • Unpermitted Additions: If an addition lacks the required permits, its quality and appearance are noted, which can impact market value.

Final Thoughts

When evaluating a home, appraisers must take numerous factors into account. Sellers can gain an advantage by hiring a licensed real estate appraiser who is knowledgeable about the local market before listing their property. Although buyers cannot use this appraisal for their lender, it provides sellers with a clearer understanding of the home’s fair market value and highlights the potential need for appraisal gap language during negotiations.

For more detailed information, you can visit the Appraisal Foundation Organization’s website.

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Ohio Broker Direct & its Brokers or Associates assumes no responsibility or liability for any errors or omissions in this blog, we advise all participants in buying or selling real estate to enlist the services of a Real Estate Attorney.

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Joan Elflein

Joan Elflein is the Principal Broker and founder of Ohio Broker Direct. Joan has been a dynamic presence in the real estate industry since 1983, overseeing transactions totaling over a billion dollars. In the early 2000s, she founded Ohio Broker Direct, a flat fee brokerage firm that champions ethical practices and client empowerment. With a philosophy centered around providing personalized, cost-effective services, Joan and her team have saved Ohio sellers millions in commissions by offering innovative For Sale By Owner services alongside tailored Flat Fee MLS listings. Her firm's commitment to transparency and support has earned an A+ rating from the Better Business Bureau and made a significant impact on Ohio real estate through both booming and challenging market conditions. With four decades of real estate experience, Joan continues to offer professional service and personal care, ensuring that every interaction with Ohio Broker Direct meets the highest standards of excellence and integrity.