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
B) Functional obsolescence
This represents functional obsolescence because the property lacks adequate bathroom facilities compared to current market expectations for homes of this size, making it less functional and desirable.
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
Option A: Physical deterioration
Physical deterioration refers to the actual physical wear and tear or damage to a property's components due to age, use, or deferred maintenance. The bathroom deficiency described is not about the condition of existing bathrooms but rather the inadequate number of bathrooms, which is a design or layout issue, not a physical condition problem.
Option C: External obsolescence
External obsolescence refers to loss in value due to factors outside the property boundaries, such as nearby nuisances, economic changes, or neighborhood decline. The bathroom deficiency is an internal characteristic of the property itself, not caused by external environmental or economic factors beyond the property owner's control.
Option D: Normal wear and tear
Normal wear and tear refers to the expected deterioration that occurs from ordinary use over time, such as worn carpeting or faded paint. The bathroom deficiency is not about the condition of existing features but rather an inadequate quantity of facilities compared to market standards, which is a functional design issue.
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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