Uniform Property Dataset

Improving the quality and consistency of property data

To enhance data quality and consistency in property data collection, Fannie Mae and Freddie Mac (the government-sponsored enterprises or GSEs) have worked together to develop the Uniform Property Dataset (UPD). This work responds to industry feedback requesting market standardization and fungibility, and was done as part of the Uniform Mortgage Data Program® (UMDP®). The UPD, which replaces each GSE’s proprietary property datasets, is separate from the Uniform Appraisal Dataset (UAD) published in March 2023, although some data elements and enumerations are aligned.

The UPD consists of all required, conditionally required, and optional data elements for GSE property data collection and supports a full interior and exterior property data collection, including images and floor plan of the subject property.

The GSEs will provide additional information on implementation timelines for this dataset at a future date.

See the Property Data Resources page for current Property Data Standard documentation.