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Newsletter Summary
- RESO 2026 Spring Conference is Near, Main Hotel Full, Accepting Door Prizes
- Sign Up for Webinar About New RESO Tools
- New RESO Board Leader and Staff Announced
- Update on RESO and CMLS Collaboration
- What’s Coming in Data Dictionary Versions 2.1, 2.2 and 3.0
RESO Spring Conference
The RESO 2026 Spring Conference in San Antonio, Texas, begins in less than two weeks, April 20–22. Members can register now for just $900. Prices increase after April 17.
The JW Marriott San Antonio Hill Country Resort is SOLD OUT. Visit the Event Page to book at an overflow hotel.
REGISTER NOW
Get Your Brand Noticed with a Door Prize for Attendees!
Some ideas for giveaways include Meta Ray-Ban AI Glasses/Sunglasses, Apple AirPods/AirTags/iPads, Amazon Kindles, etc. Contact support@reso.org to participate.
Welcome New RESO Board Member and Staff
Francois Joubert and Caitlyn Campagna
Francois Joubert, Vice President, Technology, U.S., Canada, Global at RE/MAX has joined the RESO Board of Directors.
Caitlyn Campagna has joined RESO staff as our new Project Coordinator.
We are excited for the new faces and skills to help the RESO mission.
Industry News
Webinar: New RESO Tools
This year, RESO is building new tools, including a Desktop Client, Web Client, Reference Server, new Data Dictionary site, Sandbox Server and Client SDK with supporting libraries (including Add/Edit and EntityEvent support).
Learn all about these tools in our upcoming webinar, Wednesday, April 29, at 11:00 am PT / 2:00 pm ET.
REGISTER FOR WEBINAR 
STAY CURRENT ON RESO TOOLS
Update on RESO and CMLS Collaboration
After nearly a year of thoughtful exploration, RESO and CMLS have concluded discussions and made the shared decision not to move forward with forming a new combined organization. Our close collaboration will continue, and we want your feedback on where we can combine our strengths to deliver more value to you going forward. | READ MORE
Product Updates
Data Dictionary
Approved Votes (with target version)
- Add all Property Type References to the CeilingHeight and HeightUnits fields approved from the CRE Subgroup (v2.2).
- Add GreenPoint Rated as a new GreenBuildingVerificationType lookup (v2.2).
- Deprecate Private Yard from ExteriorFeatures (v3.0).
- Deprecate Golf Course from FrontageType (v3.0).
Current Vote Items (link goes to voting page) – Available through Wednesday, April 8, 2026
- Add all Property Type References to the Composite Siding and SIPs (Structural Insulated Panels System) lookups of the ConstructionMaterials field.
- The lookups were previously approved by the Commercial Real Estate (CRE) Subgroup for v2.1 with only CRE as a Reference.
- Add T1-11 Siding and Wood Frame as new ConstrictionMaterials lookups (v2.2).
- Deprecate the following lookups identified as redundant duplicates by the Duplication Subgroup (v3.0):
- Cabana from the PoolFeatures field
- Fire Pit from FireplaceFeatures
- Garden from LotFeatures
- Generator from OtherEquipment
- Outdoor Kitchen from OtherStructures
- “Unit” vs “Units” (Standardization): Use “Unit” (singular) rather than “Units” plural for the measurement fields approved for v2.1 and v2.2, in order to align with convention.
- The “Units” fields introduced in older versions will be addressed in v3.0.
- Rename the Residential Income lookup of the PropertyType field to “Multifamily” (v3.0), which is a proposal from the Multifamily Property Type Subgroup.
- Transition Data Dictionary 2.2 to Draft Status
Transport / Certification
The Transport Workgroup is reviewing a draft of Data Dictionary 2.1 for final approval.
SUBSCRIBE TO RESO PRODUCT UPDATES
RESO’s Working with Real Estate Data
Ready, Set, Raffle! Complete RED-T Before RESO Spring!
Complete RED-T before the RESO Spring Conference to receive onsite recognition and be entered into our exclusive RED-T raffle. Register today and elevate your technical expertise with RESO.
READ MORE & REGISTER
RED-T is a technical course designed to equip engineers, developers and data professionals with the foundational knowledge needed to confidently work with RESO standards and lead smarter conversations around real estate data. It covers the RESO Data Dictionary, Web API and other key products, preparing you to design, integrate, troubleshoot and support real-world solutions with confidence.
Other RED course designations include RED-B for business and RED-CA for Canada.
Certification Update
The following organizations achieved Data Dictionary 2.0 certification over the past month:
- Grand County Board of REALTORS®
- Hattiesburg Area Association of REALTORS®
- Luzerne County Association of REALTORS®
- MLS of Southern Arizona
- Santa Barbara Multiple Listing Service
View results in RESO Analytics or see the RESO Certification Statuses & Map for all MLSs. Contact your vendor for certification questions and dev@reso.org for technical questions.
New Members
Five new companies became RESO members, including three from countries new to RESO.
Lumina Estate
Lumina Estate is a real estate agency in Tbilisi, Georgia, that helps buyers, sellers and investors find the right property with clarity and trust. They are building a modern platform designed to make property discovery clearer, smarter and more intuitive.
PlatLabs
Platlabs was formed in Agoura Hills, California, in 2024 and holds broker licenses in several states.
Professional Association of Real Estate Agents of Moldova (APAIM)
APAIM was established in 2017 following the model of the National Association of REALTORS®. APAIM informs, educates and serves its members and the public, providing a professional framework and standards for the real estate industry in Moldova.
VistaView
VistaView combines autonomous AI, immersive 3D technology and real-time market data to redefine how properties are discovered, experienced and transacted across the globe.
ZaminAI
ZaminAI is an artificial intelligence platform in Dubai, UAE, focused on real estate market analytics. The company works with real estate data providers, real estate companies and technology partners to support data-driven innovation across the global real estate ecosystem.
Welcome to RESO!
Three Questions
Three Questions is an interview series that introduces you to your fellow real estate professionals with a dash of insight and a sprinkle of fun. Watch for new entries every other Friday. | VISIT THE ARCHIVE
Recent Entries:
Recent Workgroup and Subgroup Activity
Data Dictionary Workgroup and Transport Workgroup / Certification Subgroup updates are now located in the Product Updates section above. All workgroup notes can be found in the RESO Workgroup Collaboration System powered by Confluence.
Data Dictionary Subgroups
Duplication Subgroup
The group completed their review and recommendations (deprecations and/or definition updates) on data elements identified as potential duplicates.
Global Subgroup
The group is working with SMEs to identify international needs and to create a welcome packet for new group members. Recommendations for new data elements have been posted for Data Dictionary Workgroup review.
New Construction Subgroup
The group continues to determine how the Data Dictionary may better support new construction data. Three new construction-specific date fields have been suggested.
Broker Advisory
Proposal: Creating a Brokerage Data Standard
The proposal suggests creating a formal Brokerage Data Standard and dedicated Data Dictionary schema to reduce data fragmentation across brokerages systems. A Brokerage Payload may be created to help with the goals of this proposal. This would include tagging the Data Dictionary fields needed for cross-platform data exchange.
Environmental Hazards: Focus on Mitigation
Feedback shows stronger support for standardizing mitigation data (e.g., fire‑retardant roofs, hurricane shutters) than for risk data (e.g., wildfire zones) due to verification and liability concerns. This aligns with the R&D Workgroup sentiment.
Interoperability Workgroup
Offer Management (OM) / Transaction Management (TM) Standardization
The group is developing a decentralized offer-exchange model to improve cross-platform interoperability. They are finalizing a Data Flow Diagram showing the lifecycle of an “Offer” record.
Artificial Intelligence (AI) and Interoperability
The group is considering fields to disclose when data or transactions are enhanced by automated tools (e.g., UniqueBotIdentifier, AutomatedAssistantYN).
Appraisal Payload
The group is initiating a new Appraisal Payload, modeled after the work on OM and AMS Payloads, to identify fields needed for appraisal and valuation tools.
Research and Development Workgroup
Creating a Brokerage Data Standard Proposal from Broker Advisory
The group collected feedback on a proposed Brokerage Data Standard and schema for core brokerage systems and suggested a Brokerage Payload could support the proposal’s goals.
Environmental Hazards: Focus on Mitigation
The group shifted from risk identification to documenting mitigation features. RESO staff are gathering example data elements for potential submission to the Data Dictionary Workgroup.
Smart Home and Internet of Things (IoT) Revamp
This topic has resurfaced to revisit the need for transparency around smart home devices during property transfers. A new, in-depth proposal will be drafted for standards covering device details, reset status and contract obligations.
Upcoming Workgroup/Subgroup Meetings
- Transport Workgroup | Monday, April 6
- New Construction Data Elements Subgroup | Wednesday, April 15
- Fast Track Subgroup | Wednesday, April 15
- Data Dictionary Workgroup | Thursday, April 16
- Broker Advisory Spotlight Session | Tuesday, April 21 (RESO Spring Conference)
- Research & Development Workgroup | Wednesday, April 22 (RESO Spring Conference)
- Interoperability Workgroup | Wednesday, April 22 (RESO Spring Conference)
- Transport Workgroup | Wednesday, April 22 (RESO Spring Conference)
- Certification Subgroup | Wednesday, April 22 (RESO Spring Conference)
- Desktop Client Focus Group | Tuesday, April 28
- Duplication Subgroup | Thursday, April 30
- Transport Workgroup | Monday, May 4
- Research & Development Workgroup | Thursday, May 7
