Rule library
FatalField 1.039Subject
UAD1091 — When 'Units Excluding ADUs' is more than 1, the structure identifier must be provided for each dwelling.
Where this rule lives in the report
Dwelling Exterior
{No Label}
Report Section as the GSEs define them — the black tab and grey bar you already read on the URAR.
- Severity
- Fatal — this blocks your UCDP submission and must be fixed before delivery.
- Triggered when
ImprovementType = "Dwelling" and LivingUnitExcludingADUCount > 1, and StructureIdentifier is not provided in a given instance of STRUCTURE_DETAIL- Data Point Name
StructureIdentifier- Unique ID
0300.0101- Report Field ID
1.039- What this field means
- An unique alphanumeric string used to identify and/or differentiate between multiple structures located on the property.
How to fix UAD1091
UAD1091 is a Fatal UAD 3.6 edit, so clear it before the appraisal report goes to UCDP.
- 01Open the Dwelling Exterior › {No Label} area of the URAR and find StructureIdentifier.
- 02Check the condition that triggers UAD1091: ImprovementType = "Dwelling" and LivingUnitExcludingADUCount > 1, and StructureIdentifier is not provided in a given instance of STRUCTURE_DETAIL.
- 03Correct the missing, invalid, duplicate, or inconsistent value before submitting to UCDP.
- 04Use the official 2–4 unit sample value on this page as a reference pattern, then re-run validation.
This fix guidance is derived from the published rule message, trigger logic, report location, field definition, and official sample data available for this rule.
Seen in the sample reports
How this field is populated in the official UAD 3.6 sample scenarios.
Building 1SubjectBuilding 1Subject