Real Estate Rivalry Erupts: Compass Accuses Zillow of Monopoly Moves in Home Listing Showdown

In the cutthroat world of online real estate, two industry giants are colliding in court. Compass, the largest residential real estate brokerage in the United States by sales volume, has taken Zillow to federal court, accusing the digital property powerhouse of quietly rigging the game.

The lawsuit, filed in Manhattan, claims Zillow is leveraging its immense online clout to squeeze out competition and monopolize home listings. According to Compass, a so-called “Zillow ban” targets sellers who dare to share listings off Zillow’s platform for more than a day. The penalty? Their homes vanish from Zillow—and from the databases of its close allies, Redfin and eXp Realty.

Compass says it’s a strategic chokehold designed to force every listing, every deal, and every dollar through Zillow’s pipeline.

“They want it all,” the complaint reads. “Zillow’s plan is simple: dominate the search, control the sale, eliminate the rivals.”

The brokerage is asking the court for a full stop to Zillow’s listing policy, as well as monetary damages for what it claims is deliberate market manipulation. Interestingly, Redfin and eXp—though implicated in the scheme—aren’t named as defendants.

Zillow, meanwhile, isn’t backing down. The Seattle-based real estate giant, with its sprawling database of 160 million homes and billions of monthly visits, insists the lawsuit is baseless.

“Hiding listings fragments the market and hurts everyone—buyers, sellers, and the industry,” Zillow said in a statement. “When listings are public, they should be truly public.”

The dispute comes at a time when homebuyers are already navigating a hostile market, with high prices, tight inventory, and rising mortgage rates. The National Association of Realtors recently reported a modest 0.8% bump in May home sales—but the pace is still the slowest for that month since the 2009 crash.

Compass argues that its own business model—featuring a staggered release of listings, first privately to agents, then to the public—relies on flexibility that Zillow’s policy threatens to crush. The change, set to kick in on June 30, would see Zillow ban any home that’s been publicly promoted for over a day before it hits a recognized multiple listing service.

That includes homes on Trulia, which Zillow bought a decade ago for $2 billion.

eXp’s CEO Leo Pareja pushed back on the lawsuit’s implications, saying his company’s practices are simply “responses to market realities,” and not part of any backroom conspiracy. Redfin, for its part, hasn’t weighed in.

The case, Compass Inc v Zillow Inc et al, is now in the hands of the Southern District of New York, where the next chapter in the battle for real estate supremacy is just beginning.

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