Question 28

The cost approach to value is based on the principle of substitution.

The cost approach to value, or appraisal by summation, relies on the principle of substitution, which suggests that a buyer will not pay more for a property than the cost to acquire an equally desirable substitute property.

A) supply and demand

While supply and demand are fundamental economic principles that influence market prices, they do not specifically pertain to the cost approach to value. This approach focuses on the cost to construct a similar property rather than the market dynamics of supply and demand.

B) substitution

Substitution is the correct principle underlying the cost approach to value. It posits that a buyer will consider the cost of acquiring a similar property when determining the value of a property, thus anchoring the appraisal process on construction costs and the idea that no rational buyer would pay more than this cost.

C) regression and progression

Regression and progression are concepts related to property value that describe how the value of a property may be affected by surrounding properties. However, these concepts do not align with the cost approach, which is focused on the cost of construction and substitutive value rather than the influence of neighboring properties.

D) plottage

Plottage refers to the increase in value that occurs when two or more parcels of land are combined into one larger parcel. This concept is not relevant to the cost approach, which does not consider the aggregation of land parcels but rather focuses on the cost to recreate a property.

Conclusion

Substitution is the definitive principle that underpins the cost approach to value, as it emphasizes the importance of construction costs and comparable properties. The other options, while relevant in different contexts, do not directly relate to the methodology of appraising property value through cost estimation, making them incorrect in this scenario.