Rule library
UAD1157FatalField 10.019Subject

Indicate whether the subject property is a corner unit.

Where this rule lives in the report

Unit Interior
Corner Unit

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
StructuralDesignType = "Lowrise" or "Highrise" or "Midrise", and CornerUnitIndicator is not provided in a given instance of PROPERTY_UNIT_DETAIL
Data Point Name
CornerUnitIndicator
Unique ID
0700.0058
Report Field ID
10.019
What this field means
When true, indicates that the property unit is situated at the corner of the building.

Seen in the sample reports

How this field is populated in the official UAD 3.6 sample scenarios.

More rules in “Unit Interior”