Iowa Property Valuation
Practice Questions & Answers (2026)
Property valuation questions on the Iowa exam test the three approaches to value (sales comparison, cost, and income), how appraisals work, and what affects market value. The Iowa Real Estate Commission tests when each approach is most appropriate, how adjustments are made in the sales comparison approach, and what factors an appraiser considers vs. ignores. Iowa candidates often struggle with income approach calculations — particularly gross rent multiplier (GRM) and net operating income (NOI) — and with the cost approach depreciation calculations. These are high-difficulty math and concept questions where careful study of the explanations pays off significantly on exam day.
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Iowa Property Valuation — Practice Questions & Answers
120 questions on Property Valuation from the Iowa real estate question bank. First 10 are free — sign up to unlock all 120.
Q1. When using the sales comparison approach, an appraiser makes adjustments to comparable sales prices because:
Explanation
Because no two properties are identical, an appraiser makes dollar adjustments to the comparable sales to account for differences between the comparables and the subject property (e.g., square footage, amenities, condition). The adjusted values of the comparables bracket the subject's value.
Q2. Which of the following BEST defines 'market value'?
Explanation
Market value is the most probable price a property would bring in a competitive and open market between a willing, informed buyer and a willing, informed seller, with neither being under duress and both acting prudently.
Q3. In the cost approach, the estimated value of land is:
Explanation
In the cost approach: Value = Land Value + (Replacement or Reproduction Cost of Improvements − Accrued Depreciation). Land is always valued separately (usually using the sales comparison approach) and then added to the depreciated cost of improvements.
Q4. A single-family home has comparable sales ranging from $195,000 to $215,000 after adjustments. The appraiser gives the most weight to the comparable most similar to the subject. The final estimated value is likely to be:
Explanation
Appraisers use judgment to reconcile comparable sales values. The final estimate is typically within the adjusted range but weighted toward the most similar comparable. Simply averaging comparables or choosing the highest or lowest is not standard appraisal practice.
Q5. Which approach to value is MOST appropriate for appraising a newly constructed public library?
Explanation
The cost approach is most appropriate for special-purpose properties (like public libraries, schools, or churches) that rarely sell and do not generate income. It estimates value by calculating land value plus the replacement cost of improvements minus depreciation.
Q6. Functional obsolescence as a form of depreciation in real estate refers to:
Explanation
Functional obsolescence is a loss in value caused by outdated or inadequate features within the property itself, such as an outdated floor plan, obsolete fixtures, or insufficient electrical capacity. It stems from the property's design or function, not physical wear or external factors.
Q7. External (economic) obsolescence as a form of depreciation is BEST described as:
Explanation
External (or economic) obsolescence is caused by factors outside the property itself — such as a nearby highway, industrial plant, economic decline in the area, or a drop in demand. This type of depreciation is typically incurable because the owner cannot control external factors.
Q8. An appraiser uses the income capitalization approach to value a 10-unit apartment building with a gross annual income of $120,000, vacancy and collection loss of 5%, and operating expenses of $50,000. The cap rate is 7%. What is the estimated value?
Explanation
EGI = $120,000 × (1 − 0.05) = $114,000. NOI = $114,000 − $50,000 = $64,000. Value = NOI ÷ Cap Rate = $64,000 ÷ 0.07 ≈ $914,286. Closest answer: The calculation yields approximately $914,286. However, if gross income is used directly: $64,000 ÷ 0.07 ≈ $914,286. Recalculating: NOI = $64,000; Value = $64,000 ÷ 0.07 = $914,286.
Q9. Which principle of value states that the value of a property is affected by the value of surrounding properties?
Explanation
The principle of conformity holds that maximum value is achieved when properties in a neighborhood are reasonably similar in use and design. A property's value is influenced by surrounding properties — a run-down house can reduce neighborhood values, while well-maintained homes support them.
Q10. The principle of substitution states that:
Explanation
The principle of substitution holds that a rational buyer will pay no more for a property than the cost of acquiring a substitute property of equal utility and desirability. This principle is the foundation of both the sales comparison approach and the cost approach.
Q11. Gross Rent Multiplier (GRM) is calculated by:
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