Data Dictionary

The RESO Data Dictionary defines standard resources, fields and lookups for the exchange of real estate data.

DD 1.7

Legacy

Approved December 18, 2018

26 Resources
1,333 Fields
2,920 Lookups

DD 2.0

Active

Approved October 23, 2023

41 Resources
1,745 Fields
3,683 Lookups

DD 2.1

Draft

In development

44 Resources
2,167 Fields
4,140 Lookups
DD 2.0 is the current version for RESO certification. Ratified standards are published on the RESO Transport site. Log in to view Data Dictionary discussions.

Related Resources

RESO Tools

Reference server, client SDK, testing and compliance tools

Certification Portal

View certification results and analytics

Transport Specifications

Official RESO transport specifications and endorsements

About the Data Dictionary

Learn about the RESO Data Dictionary program

The RESO Data Dictionary is a collaborative effort by industry experts who volunteer their time and expertise. View contributors

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