Valuation and Analysis, 14% of the examination
External obsolescence
Loss in value caused by an influence outside the property.
Examples include adverse traffic, nearby incompatible uses, or a weak local employment base. These causes are often beyond the owner's control, but that does not make every external influence permanently incurable. Functional obsolescence arises within the property.
See also
Test the distinction
A relevant question from Valuation and Analysis, selected because its facts or explanation use this concept.
A new airport flight path lowers values across a neighborhood. What kind of depreciation is this?
Written to DRE's published topic list. Not a real examination question, since reproducing those is a misdemeanor under B&P Code section 123.
Primary sources
Use these authorities when a course summary, forum answer, or older flashcard conflicts with the current California rule.