Randall Bell , MAI 380 The Impact of Detrimental Conditions on Property Values

Detrimental conditions that affect property values range from temporary conditions and market perceptions to construction defects, environmental contamination, and geotechnical issues. Quantifying the impact of DCs is significantly more complex and challenging than working through the three approaches to value. The author has discovered distinctive graphic patterns in his study of DCs and grouped them into 10 general categories, each with unique characteristics. The article urges appraisers to address the costs associated with assessment, remediation, ongoing costs, and the effects of any market resistance.