UAD condition ratings C1-C6
Fannie Mae's Uniform Appraisal Dataset defines six condition ratings. C1 applies to new construction that has never been occupied. C2 is near-new with only minor wear. C3 covers well-maintained homes with normal wear. C4 has some deferred maintenance. C5 has significant deferred maintenance requiring repair. C6 is uninhabitable without major renovation.
UAD quality ratings Q1-Q6
Quality ratings describe construction caliber. Q1 is exceptional -- custom or unique design with high-end materials throughout. Q2 is excellent quality with custom elements. Q3 is good quality with upgraded finishes. Q4 is standard average quality. Q5 is fair quality with economical materials. Q6 is low quality or minimal construction standards.
Why condition and quality adjustments are needed
When a comparable sale differs from the subject in condition or quality, the raw sale price does not accurately represent the subject's value. Appraisers make dollar adjustments to "bring the comp to the subject" -- adding value when the subject is superior, deducting when the subject is inferior.
How adjustment amounts are derived
The best way to support condition or quality adjustments is through paired sales analysis -- finding two sales identical in all ways except the factor being measured. Absent sufficient paired data, appraiser judgment informed by market trends, cost data, and professional experience guides the selection.