Open Real Estate: What the Big Four's Listing Plan Could Mean for Sellers and the MLS

Opinion

On October 26, four of the largest names in residential real estate announced a plan to change how listings are shared. Keller Williams, AGNT (the parent of eXp Realty and NextHome), HomeServices of America and Real REMAX Group launched Open Real Estate, a national system for sharing listing data. It has not been built yet, but it is already one of the most talked-about ideas in the industry.

What it is

An agent would enter a listing once, using a standard set of fields, within one business day of the seller signing a listing agreement. From there, the listing would be shared with other participating brokerages and sent out to local MLSs, home search sites, appraisers and data services. The founders say it will work alongside MLSs, not replace them, and that local MLSs will keep setting their own rules. Membership is free for any licensed brokerage. Brown Harris Stevens, Windermere, Samson Properties and Lamacchia have already signed on. The group plans to spend about six months on governance and technology and expects to choose a technology partner in early 2027.

Why it matters

The plan is a direct answer to the rise of private listings: homes marketed only inside one brokerage's network before, or instead of, reaching the open market. The founders argue that when listings are hidden, buyers see fewer homes, sellers reach fewer buyers, and the data that lenders, appraisers and insurers depend on gets patchier. Their pitch is simple: put everyone's listings in one place, and fewer homes stay out of sight.

The case for it

• More homes in view. A single shared system could make it harder for listings to disappear into private networks.
• Less duplicate work. Enter a listing once and it goes everywhere, which matters most to agents who now post the same home to several MLSs and sites.
• Better data. Standard fields and a full record help buyers, appraisers and lenders judge value.
• Shared value. The founders say participating brokerages will share in money earned from the data, so listing information is not monetized by just one company.

The case against it

• It is still a promise. There is no product yet, no confirmed launch date and no final governance. Commitments to join are not binding.
• Who controls it? Four very large companies are setting it up, and its own FAQ says it has full discretion over where listings are sent. How fair it stays will depend on rules that have not been written.
• Not fully open. Brokers can mark a listing as visible only to other participants, a restricted option inside a system built to fight restricted listings.
• Another layer for the MLS. No MLS has publicly agreed to accept listings from it, and it is unclear how its rules would fit with each MLS's own.

What it could mean for the MLS

If it works, Open Real Estate could become the main front door for listings, with MLSs receiving them rather than collecting them first. That could strengthen the shared record, or it could shift power from local MLSs to a national system run by the largest firms. Much depends on whether MLSs choose to work with it.

The bottom line

The goal of keeping more homes visible is one most buyers and sellers can support. Whether this particular system delivers it will come down to governance, openness and how it treats smaller brokerages. For sellers, the question stays the same: where will your home be seen, by whom, and when? Ask before you list.

Sources: Real Estate News, NAR, HousingWire, RISMedia, WRE News, The Real Deal.