Appraisal Fundamentals
Why Two Appraisers Can Reach Different Opinions
A value difference between two appraisals isn't automatically a red flag — here's why, and what to do if you're concerned.
An appraisal is a professional opinion, developed through a standards-based process — but it still involves judgment. Two competent, independent appraisers working the same property can reasonably land on somewhat different, equally supportable values.
Where Reasonable Differences Come From
Different Comparable Sales
Two appraisers researching the same market may reasonably select a somewhat different set of comparable sales, especially where several similarly-qualified options exist.
Different Adjustment Judgment
Even from the same comparables, professional judgment about adjustment amounts and reconciliation weighting can vary within a defensible range.
Different Effective Dates or Scope
A few weeks' difference in effective date, or a different intended use, can lead to genuinely different — and equally correct — conclusions for their respective assignments.
The Real Question Isn't "Which Number Is Right"
The more useful question is whether each opinion is independently well-supported — sound comparable selection, defensible adjustments, and clear reconciliation. A supportable value within a reasonable range, properly documented, is the actual standard — not an exact match to any other single number.
What This Does Not Mean
It doesn't mean appraised values are arbitrary or that any number can be justified — an opinion that isn't supportable by the evidence developed is a legitimate concern, and there are defined channels (like a reconsideration of value) for raising it. It simply means a difference by itself isn't proof of an error.
Frequently Asked Questions
Provided for general educational purposes based on USPAP's recognition of appraisal as a professional opinion involving judgment within a supportable range. Last reviewed: August 2026.