Property ValuationIntermediateAlaska Exam

Which principle of value explains why a home across from a noisy industrial facility will sell for less than an identical home in a quiet residential area?

AProgression, in general
BRegression
CExternal obsolescenceCorrect
DConformity

Why External obsolescence Is Correct

Answer C: External obsolescence

External obsolescence (also called economic or locational obsolescence) explains the loss in value due to negative external factors — in this case, the noise and industrial character of the adjacent land use. The negative external influence reduces the property's market value.

Exam Tip: Property Valuation

Valuation questions focus on the three approaches to value: sales comparison, cost, and income. Know which approach is best for which property type. The income approach uses cap rate and NOI — memorize these formulas.

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