What is the key function of the sales comparison approach?

The sales comparison approach primarily focuses on establishing value based on past sales of similar properties. This method involves analyzing recent sales data of comparable properties that are similar in terms of size, location, age, and condition to the property being appraised. By evaluating these comparable sales, appraisers can gauge the market value of a property based on what buyers have recently been willing to pay for similar properties within the same market.

This approach is particularly effective in active and competitive real estate markets where there is ample data on comparable sales. It helps ensure that the appraised value aligns with current market trends and buyer expectations, making it a widely accepted valuation method among appraisers.

The other options do not capture the core purpose of the sales comparison approach. For instance, while understanding future rental income or analyzing construction costs are important aspects of real estate valuation, they pertain to different appraisal approaches. Additionally, deriving value solely based on appraisal regulations is not reflective of market-driven valuation methods like the sales comparison approach.