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USPAPMEDIUM18.2% of exam

Under Standard 1, when must an appraiser develop the cost approach?

Correct Answer

D) When it is necessary for credible assignment results

Standards Rule 1-4(b) requires a cost approach when it is necessary for credible assignment results. The appraiser then develops site value, cost new and depreciation using appropriate methods and available data. It is not mandatory in every assignment or only for new construction.

Answer Options
A
For all real property appraisals of any kind
B
Whenever the client is a federally regulated lender
C
For new construction, and not for existing homes
D
When it is necessary for credible assignment results

Why This Is the Correct Answer

Option D is correct because Standards Rule 1-4(b) applies when a cost approach is necessary for credible assignment results. In that case the appraiser develops site value, cost new and depreciation with appropriate methods and data. The trigger is necessity for credibility, not a fixed category.

Why the Other Options Are Wrong

Option A: For all real property appraisals of any kind

Option A, requiring the cost approach for all real property appraisals of any kind, is wrong because USPAP requires it only when it is necessary for credible results.

Option B: Whenever the client is a federally regulated lender

Option B, requiring it whenever the client is a federally regulated lender, is wrong because the client's identity is not USPAP's trigger; the test is necessity for credible results.

Option C: For new construction, and not for existing homes

Option C, requiring it for new construction and not for existing homes, is wrong because USPAP does not split the requirement by construction status; the approach may be necessary for an existing home or unnecessary for a new one.

Necessary for credibility decides

For any approach to value, ask one question: is it necessary for credible assignment results?

How to use: Use the necessity question to reject answers based on property type, age or client type.

Exam Tip

When asked when an approach must be developed, look for the phrase necessary for credible assignment results.

Common Mistakes to Avoid

  • -Believing the cost approach is required in every appraisal
  • -Tying the requirement to lender type
  • -Thinking the cost approach applies only to new construction

Concept Deep Dive

Analysis

This question tests when Standard 1 requires the cost approach. USPAP ties the requirement to whether the approach is necessary for credible assignment results. It does not set a blanket rule by property type, age or client.

Background Knowledge

USPAP applies the same test to each approach: develop it when it is necessary for credible assignment results. When the cost approach is developed, the appraiser estimates site value, replacement or reproduction cost new and accrued depreciation. If an approach is not developed, an Appraisal Report must state the reason.

Real-World Application

For a unique custom home with few comparable sales, an appraiser decides the cost approach is necessary for credible results. She develops site value from land sales and estimates cost new and depreciation.

cost approachStandards Rule 1-4(b)credible assignment resultsdepreciationsite value
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