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

UAD1694

FATAL

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

Each dwelling must contain at least one living unit that is not an ADU.

Fatal — a single unresolved Fatal makes the entire submission come back NOT SUCCESSFUL (UCDP Hard Stop 401).

What triggers UAD1694

The published rule logic, verbatim:

For each instance of IMPROVEMENT_DETAIL with ImprovementType = "Dwelling", if there is no occurrences of PROPERTY_UNIT_DETAIL with AccessoryDwellingUnitIndicator = "false"

  • Checked for the Subject property.
  • Minimum allowed value: 1.
  • • Bound to MISMO data point AccessoryDwellingUnitIndicator at ../VALUATION_ANALYSIS/PROPERTIES/PROPERTY/IMPROVEMENTS/IMPROVEMENT/PROPERTY_UNITS/PROPERTY_UNIT/PROPERTY_UNIT_DETAIL/

How to fix it

On the URAR, this lives at: Unit Interior → ADU. Complete or correct that field in your form software, regenerate the package, and re-check before submission.

Because this is a Fatal edit, do not submit until it is resolved — one Fatal bounces the whole package.

The free UADCheck inspection evaluates UAD1694 automatically — attach your package and see in seconds whether it fires.

Begin inspection →

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.