FORM UC-36 (REV. 09-2026)UCDP MANDATE: 2026-11-02
UADCHECKPre-submission inspection of UAD 3.6 packages

UAD1418

WARNING

Official message text · Appendix H-1: UAD Compliance Rules — URAR, v1.5

The 'Year Built' is prior to 1800. Please check for accuracy.

Warning — the submission can still come back Successful, but the finding is surfaced to your lender's review team.

What triggers UAD1418

The published rule logic, verbatim:

If @ValuationUseType = "SalesComparable" and PropertyStructureBuiltYear < 1800 in a given instance of IMPROVEMENT_DETAIL with ImprovementType = "Dwelling"

  • Checked for every Sales Comparable in the report.
  • Minimum allowed value: 1800.
  • • Bound to MISMO data point PropertyStructureBuiltYear (%PV%) at ../VALUATION_ANALYSIS/PROPERTIES/PROPERTY/IMPROVEMENTS/IMPROVEMENT/IMPROVEMENT_DETAIL/

How to fix it

On the URAR, this lives at: Sales Comparison Approach → Dwelling(s) → Year Built (%PV%). Complete or correct that field in your form software, regenerate the package, and re-check before submission.

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Related messages

Source: Appendix H-1: UAD Compliance Rules — URAR, v1.5 (public GSE document). Verified against the published spreadsheet; not affiliated with Fannie Mae or Freddie Mac.