A house has an inefficient floor plan where the only access to the master bedroom is through another bedroom. This is an example of:
Correct Answer
D) Functional obsolescence
Why this is correct: Functional obsolescence is a loss in value due to flaws in the design, layout, or features that reduce utility and desirability. An inefficient floor plan requiring passage through one bedroom to access another is a classic design/layout flaw. Why the other choices are wrong: 'Economic obsolescence' is wrong; that is caused by external factors like a poor location. 'Physical deterioration' is wrong; that refers to wear and tear or damage to the structure. 'External obsolescence' is wrong; that is impairment from outside the property boundaries. Exam tip: Categorize obsolescence: Functional = bad design inside. External = bad influences outside. Physical = broken/worn parts.
Why This Is the Correct Answer
Why this is correct: Functional obsolescence is a loss in value due to flaws in the design, layout, or features that reduce utility and desirability. An inefficient floor plan requiring passage through one bedroom to access another is a classic design/layout flaw. Why the other choices are wrong: 'Economic obsolescence' is wrong; that is caused by external factors like a poor location. 'Physical deterioration' is wrong; that refers to wear and tear or damage to the structure. 'External obsolescence' is wrong; that is impairment from outside the property boundaries. Exam tip: Categorize obsolescence: Functional = bad design inside. External = bad influences outside. Physical = broken/worn parts.
Why the Other Options Are Wrong
The FEP Method
Function-External-Physical: Function = design problems INSIDE the house, External = problems OUTSIDE the property, Physical = wear and tear you can SEE and TOUCH
How to use: When you see a question about property problems, ask: Is it a design issue (Function)? Is it from outside forces (External)? Is it physical damage you can touch (Physical)? Floor plan issues are always functional since they're internal design problems.
Exam Tip
Look for keywords like 'floor plan,' 'layout,' 'design,' 'outdated features,' or 'inadequate' - these almost always indicate functional obsolescence rather than the other types.
Common Mistakes to Avoid
- -Confusing functional obsolescence with physical deterioration when the issue involves outdated but functioning components
- -Thinking external obsolescence applies to any problem that affects value, rather than specifically external factors
- -Assuming all design problems are incurable functional obsolescence without considering renovation costs versus value added
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 specifically refers to design deficiencies or outdated features within the property itself that reduce its utility and marketability. The scenario describes a floor plan issue where privacy and accessibility are compromised by requiring passage through one bedroom to reach another, which is a clear design flaw that modern buyers would find unacceptable. This type of obsolescence is curable if the cost to fix it is less than the value it would add, or incurable if renovation costs exceed the potential value increase.
Background Knowledge
Appraisers must understand the three main categories of depreciation: physical deterioration (wear and tear), functional obsolescence (design deficiencies), and external obsolescence (outside negative influences). Each type affects property value differently and has different solutions, with functional obsolescence often being the most controllable by property owners through renovation or redesign.
Real-World Application
In practice, appraisers frequently encounter functional obsolescence in older homes with features like single bathrooms, small kitchens, low ceilings, or poor traffic flow. They must determine if the obsolescence is curable (worth fixing) or incurable (too expensive to remedy) and adjust the property value accordingly using comparable sales or cost approaches.
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