A 1,500 square foot home has only one bathroom. Typical homes of this size in the market have 2.5 bathrooms. This represents:
Correct Answer
C) Functional obsolescence
Why this is correct: Functional obsolescence occurs when a property's design, features, or layout are inadequate compared to market standards, reducing utility and value. Here, insufficient bathrooms for the home's size is a functional deficiency. Why the other choices are wrong: "Physical deterioration" is wrong because it refers to wear and tear, not design inadequacy. "Normal wear and tear" is a type of physical deterioration, not obsolescence. "External obsolescence" is wrong because it arises from external factors (e.g., neighborhood decline), not property features. Exam tip: Functional obsolescence = internal design flaws; external obsolescence = external factors.
Why This Is the Correct Answer
Functional obsolescence is the correct answer because the property has an inadequate number of bathrooms relative to current market expectations for homes of this size. This deficiency makes the home less functional and desirable to potential buyers, as one bathroom is insufficient for a 1,500 square foot home where 2.5 bathrooms would be typical. The obsolescence stems from the property's inability to meet modern living standards and buyer preferences, which is the defining characteristic of functional obsolescence. This deficiency would require an adjustment in the sales comparison approach and represents a loss in value due to poor design or inadequate facilities.
Why the Other Options Are Wrong
The FEP Method
Remember FEP: Functional = Features/Function problems, External = Environmental/Economic factors, Physical = Physical condition/deterioration. Think 'Function Fails People' for functional obsolescence when features don't meet current user needs.
How to use: When you see a question about property deficiencies, ask: Is it about physical condition (Physical), property features/layout (Functional), or outside influences (External)? Use FEP to categorize the problem type quickly.
Exam Tip
Look for key words: 'inadequate,' 'lacks,' 'compared to market standards,' or 'current expectations' often signal functional obsolescence, while 'worn,' 'damaged,' or 'deteriorated' suggest physical issues.
Common Mistakes to Avoid
- -Confusing functional obsolescence with physical deterioration when the issue involves adequacy rather than condition
- -Thinking external obsolescence applies to internal property features
- -Assuming normal wear and tear covers design deficiencies rather than just physical condition issues
Concept Deep Dive
Analysis
This question tests understanding of the three types of obsolescence in real estate appraisal: functional, external, and physical deterioration. Functional obsolescence occurs when a property's design, layout, or features are inadequate or outdated compared to current market standards and buyer expectations. The key distinction is that functional obsolescence relates to the property's ability to perform its intended function effectively, not its physical condition or external factors. In this case, having only one bathroom in a 1,500 square foot home creates a functional deficiency that reduces the property's utility and marketability compared to similar homes with adequate bathroom facilities.
Background Knowledge
Appraisers must understand the three types of depreciation: physical deterioration (actual wear and damage), functional obsolescence (design deficiencies or inadequate features), and external obsolescence (negative external influences). Functional obsolescence can be either curable (economically feasible to fix) or incurable (too expensive to remedy relative to the value added).
Real-World Application
In practice, appraisers frequently encounter functional obsolescence in older homes with outdated layouts, insufficient bathrooms, small kitchens, or lack of modern amenities like garages or central air conditioning. These deficiencies require negative adjustments in the sales comparison approach and affect the property's marketability and value.
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