A house built in 1960 has original single-pane windows, no central air conditioning, and 100-amp electrical service. These deficiencies primarily represent:
Correct Answer
B) Functional obsolescence due to changing standards
These features were standard in 1960 but no longer meet current market expectations. This represents functional obsolescence, where components become outdated due to changing technology, building standards, and buyer preferences rather than physical deterioration.
Why This Is the Correct Answer
Functional obsolescence occurs when building components become outdated due to changing technology, building codes, or market preferences, even if they still function. Single-pane windows, lack of central air, and 100-amp electrical service were standard in 1960 but are now considered inadequate by modern standards. These deficiencies reduce the property's utility and marketability compared to homes with double-pane windows, central HVAC systems, and 200-amp electrical service. The loss in value stems from the components being functionally inadequate for current market expectations, not from physical breakdown.
Why the Other Options Are Wrong
Option A: Physical deterioration due to age
Physical deterioration refers to actual wear, tear, and breakdown of building components due to use, weather, and age. The items mentioned (windows, electrical, HVAC) may still be functioning properly despite being outdated by current standards.
Option C: External obsolescence from neighborhood decline
External obsolescence refers to value loss due to factors outside the property boundaries, such as neighborhood decline, nearby nuisances, or adverse zoning changes. The deficiencies listed are internal to the property and relate to building systems, not external influences.
Option D: Normal wear and tear
Normal wear and tear is a subset of physical deterioration involving expected deterioration from ordinary use. The question describes systems that may function fine but are simply outdated by current standards, not worn out from use.
The FOP Method
FOP = Function, Outdated, Performance. If something still has Function but is Outdated by current standards while maintaining basic Performance, it's Functional Obsolescence.
How to use: When you see building components that were standard in their era but are now considered inadequate, apply FOP: Does it still function? Is it outdated by current standards? If yes to both, choose functional obsolescence.
Exam Tip
Look for time-related clues in questions - if a building component was 'standard when built' but is now considered inadequate, it's almost always functional obsolescence, not physical deterioration.
Common Mistakes to Avoid
- -Confusing functional obsolescence with physical deterioration when components still work but are outdated
- -Thinking that anything old automatically represents physical deterioration
- -Not recognizing that building standards and buyer expectations change over time
Concept Deep Dive
Analysis
This question tests understanding of the three types of depreciation in real estate appraisal: physical deterioration, functional obsolescence, and external obsolescence. The key is recognizing that the house components (single-pane windows, no central air, 100-amp service) were standard when built in 1960 but are now considered inadequate by current market standards. This represents a loss in value not due to physical wear, but due to the evolution of building technology, energy efficiency standards, and buyer expectations over time. The components may still function as originally intended but no longer meet modern utility and desirability standards.
Background Knowledge
Appraisers must distinguish between three types of depreciation when estimating property value using the cost approach. Physical deterioration involves actual breakdown of components, functional obsolescence involves components that are outdated but may still work, and external obsolescence involves outside factors beyond the property owner's control.
Real-World Application
When appraising older homes, appraisers commonly encounter functional obsolescence in electrical systems (60-100 amp vs. 200 amp), HVAC systems (no central air vs. central systems), windows (single-pane vs. double-pane), and bathrooms (one bathroom vs. multiple bathrooms). These require cost-to-cure adjustments in the cost approach.
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