What does the basic model structure for the cost approach represent?

The basic model structure for the cost approach represents the concept of how property value is calculated based on its components, specifically focusing on the physical structure and land value. This approach is grounded in the idea that the value of a property can be determined by summing the value of the land and the cost to replace any improvements made to that land, adjusted for any depreciation.

In this context, value being equal to land value plus replacement cost minus depreciation encapsulates the fundamental principle behind the cost approach. Land value reflects the worth of the parcel itself, while replacement cost concerns the expense involved in constructing a replica of the property's improvements. Depreciation accounts for the loss of value due to age, wear and tear, or obsolescence, ensuring that the calculated value reflects the current condition of the property.

This model is particularly useful in situations where comparable sales data is scarce, allowing appraisers and assessors to establish property value based on tangible and quantifiable elements.