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Real Estate Standards Organization

Streamlining Technology Through Global Collaboration
What We Do

DATA DICTIONARY

The real estate industry’s universal language for data
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RESO Web API

RESO Web API

The modern way to share real estate data effectively and accurately
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RESO UNIQUE IDENTIFIERS

The sources of truth for data about people, properties, and organizations
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STRONG PARTNERS

More than one million RESO members work in over 100 countries. Member organizations include over 100 technology partners, 500 MLSs, 1,000 REALTOR associations, and 35,000 brokerage offices.

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CERTIFICATION

Ensuring compliance with standards to accelerate innovation and enhance interoperability
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INDUSTRY DATA MAP

Certified data sets from technology companies and multiple listing services
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RESO standards save you time and money
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RESO BLOG

RESO Universal Property Identifier (UPI) Goes Global

RESO's well-known standard for a Universal Property Identifier (UPI) has picked up steam, not just in the U.S. but also internationally. The RESO UPI Workgroup’s chair, Mark Bessett, traveled to Malaga, Spain last year to speak about the expansion of this standard,...

Livestream Open Houses vs. Recorded Virtual Tours: The RESO Standards

Real estate agents are creating new ways to introduce busy, remote or self-isolated clients to properties online. In order to reduce foot traffic in sellers’ homes during the pandemic, new digital showing trends have emerged. Defining these digital property platforms...

NAR Participant Data Access Policy and Related RESO Standards

The National Association of REALTORS® (NAR) recently approved a new MLS policy regarding the “Right of brokers to obtain an MLS data feed of their listing information.” The policy, proposed by Council of MLS, references RESO standards: A Multiple Listing Service must,...