Originally published on December 13, 2024 by The Appraisal Institute.
A study on the use of time adjustments by appraisers conducted by two researchers at the Federal Housing Finance Agency in November contains serious flaws that misrepresent the appraisal process and further demonize the appraisal profession regarding racial bias.
The study, Underappraisal Disparities and Time Adjustments to Comparable Sales Prices in Mortgage Appraisals, contends that appraised values often fail to reflect rapidly increasing home prices in competitive markets. It further raises housing equity concerns, claiming that time adjustments are used less to cure “underappraisal” in majority Black and Hispanic neighborhoods than in major White neighborhoods. The study suggests appraisers should use automated valuation models, and lenders should randomly assign appraisal orders to mitigate bias.
For one, the assumption that appraisals should ideally mirror the pace of rising market prices oversimplifies the role of appraisers and the appraisal process. The study does not sufficiently account for the complexity of making time adjustments in markets with uneven price growth or where transaction volumes are low, limiting the availability of comparable sales.