FAIR Appraisal Guide

Comparable Sales Sourcing for Appraisal Reports

Direct answer

Comparable sales sourcing should prioritize relevance, transparency, and consistent adjustment logic. A useful comp set is not the longest list; it is the clearest set of market evidence for the property, value basis, and intended use.

  • Match the appraiser to the item category.
  • Confirm the report purpose before pricing.
  • Compare fee disclosure before outreach.
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Comparable Sales Sourcing for Appraisal Reports - FAIR online appraisal guide illustration
Comparable Sales Sourcing for Appraisal Reports - FAIR online appraisal guide illustration
Decision guide

When a formal appraisal is worth it

Use the purpose of the value first. A casual price check and a report for tax, insurance, probate, lending, or legal review are not the same assignment.

When a formal appraisal is worth it
Situation Formal appraisal? Why it matters
Personal curiosity or early sorting Not always Start with identification, photos, and rough triage before paying for a formal report.
Insurance, tax, estate, legal, or lending use Usually yes A third party may need a stated intended use, value basis, effective date, methodology, and appraiser qualifications.
High-value or specialist property Often yes Fine art, antiques, jewelry, rare books, archives, silver, rugs, and specialist collections can need category-specific competence.
Comparable selection criteria

Select comps that are meaningfully similar and contextually appropriate. The report should show why each sale belongs in the analysis.

  • Match category, period, medium, scale, maker or artist, edition, material, and market tier where possible.
  • Screen for condition, provenance, restoration, attribution, and sale venue relevance.
  • Use recent and context-appropriate market references, while explaining older sales when they are still the best evidence.
  • Do not include weak comps only to make the table look fuller.
Adjustment and explanation standards

Adjustments should be understandable to non-specialist reviewers. If the logic cannot be explained clearly, the support chain is too weak.

  • State why each comp is included or excluded.
  • Document material adjustments in plain language.
  • Explain differences in condition, provenance, scale, date, edition, venue, and market timing.
  • Tie the final conclusion back to the comp set clearly.
Common questions
  • Is more comps always better? No. Relevance and explanation quality matter more than count. Three strong, well-explained comps are usually better than a long list of weak matches.
  • Should outliers be included? Only when they are justified and clearly contextualized. An outlier can be useful, but the report should explain why it does or does not influence the conclusion.
  • How do I make comps review-friendly? Use consistent labels, clear source references, and a direct connection between the comp table, the narrative, and the final value conclusion.
Related FAIR paths
FAIR trust boundary and source references
  • FAIR does not license appraisers.
  • FAIR does not certify competence or guarantee availability.
  • Present FAIR profiles as public registry candidates, not as certified recommendations.
  • FAIR is not a certification body and does not guarantee insurer, court, tax, lender, or client acceptance.
  • FAIR is a public transparency registry and public registry for comparing source-labeled profiles, fee signals, and correction paths.