CoStar Sues Zillow for “Rampant” Copyright Infringement
On July 30, 2025, CoStar Group filed a federal lawsuit in New York alleging that Zillow has been displaying at least 46,979 CoStar-owned photos—many still bearing CoStar watermarks—across Zillow’s rental network and syndication partners, including Redfin and Realtor.com. CoStar calls it “willful, mass infringement,” and says the images have been shown hundreds of thousands of …
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