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Sales ComparisonMEDIUM16.4% of exam

A house is a 4,000 square foot home in an area of 2,000 square foot homes. How must the appraiser treat this over-improvement in the sales comparison grid?

Correct Answer

B) Comment on it and reflect its contributory value

Fannie Mae requires the appraiser to comment on over-improvements and indicate their contributory value in the sales comparison grid. An over-improvement does not by itself make the property ineligible.

Answer Options
A
Adjust for its full replacement cost new
B
Comment on it and reflect its contributory value
C
Ignore it, since size is not an appraisal factor
D
Exclude the home from Fannie Mae eligibility

Why This Is the Correct Answer

Option B is correct because Fannie Mae requires the appraiser to comment on over-improvements and indicate their contributory value in the sales comparison adjustment grid. Contributory value reflects what the market will pay for the improvement in that neighborhood, which may be less than its cost. An over-improvement does not by itself make the property ineligible.

Why the Other Options Are Wrong

Option A: Adjust for its full replacement cost new

Option A is wrong because adjusting for full replacement cost new ignores how the market reacts to the over-improvement. Cost does not equal contribution, especially for a feature out of character with the neighborhood.

Option C: Ignore it, since size is not an appraisal factor

Option C is wrong because size is a significant appraisal factor, and ignoring it would misstate the analysis. The over-improvement must be addressed through comment and contributory value.

Option D: Exclude the home from Fannie Mae eligibility

Option D is wrong because an over-improvement does not by itself exclude the home from Fannie Mae eligibility. The guidance calls for comment and contributory value, not exclusion.

Cost is not contribution

An oversized house may cost a lot to build, but the market decides what it adds. Comment on it and show what it contributes.

How to use: Use this phrase whenever a question involves features that exceed neighborhood norms.

Exam Tip

For over-improvement questions, prefer answers about commenting and contributory value over answers that use cost or declare the property ineligible.

Common Mistakes to Avoid

  • -Adjusting for the full cost of an over-improvement
  • -Assuming an over-improvement makes the loan ineligible
  • -Ignoring the size difference instead of commenting on it

Concept Deep Dive

Analysis

This question tests Fannie Mae's treatment of over-improvements. A 4,000 square foot house among 2,000 square foot homes may not receive full market credit for its extra size. The appraiser must comment on the over-improvement and reflect its contributory value in the adjustment grid.

Background Knowledge

An over-improvement is an improvement whose cost or size exceeds what is typical for the neighborhood, so it may contribute less than it cost. Contributory value is the amount an item adds to market value. Appraisers measure it through market evidence rather than cost figures.

Real-World Application

An appraiser values a large custom home in a neighborhood of modest ranch houses. She searches for larger sales in competing areas to measure what the extra square footage actually contributes and explains the over-improvement in her report.

over-improvementcontributory valueFannie Maesales comparison gridconformity
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More Sales Comparison Questions

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