Editor’s note: after this story published, Zillow and Redfin struck an agreement with the FTC to avoid trial, amending or unwinding significant portions of their partnership. Read the full story here. At 10 a.m. Eastern Time on Monday, August 24, portal rivals Zillow and Redfin will face a judge in Virginia federal court, and defend…

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CoStar Group announced the completion of its $800 million acquisition of Zonda—a provider of new home construction data, homebuilder software and residential real estate marketplaces. The deal was first announced back in May. CoStar stated in a release that this acquisition expands the company’s presence across the residential real estate ecosystem, extending the company’s data,…

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After announcing that it would be scaling back its investment in Homes.com this past January, CoStar Group appears to be thriving as of Q2 as it beefs up investments in other segments of its business, such as Apartments.com.  Andy Florance—CEO of CoStar—touted the success of the portal during the company’s earnings call yesterday, stating that…

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CoStar has filed an amicus brief—a brief filed by a non-party, or a “friend of the court”— urging a federal judge to deny Zillow’s effort to block Midwest Real Estate Data (MRED) and Compass from cutting off its listing feed, arguing the portal giant is seeking court-ordered access to MLS listings while hoarding its own…

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In its lawsuit against Zillow focused on alleged infringement of copyrighted photos, CoStar Group is adding new allegations today, claiming that Zillow is continuing to “publish” images it has watermarked and identified, including some that were previously removed by the portal after the lawsuit was filed. Originally filed back in the June of 2025, CoStar…

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In another tense back and forth between CoStar Group and an activist investor, hedge fund The D.E. Shaw Group criticized what it called the company’s latest “attempt to evade accountability for longstanding and ongoing underperformance of Homes.com.” The new dispute comes about a month after D.E. Stevens first demanded that CoStar abandon its residential business.…

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As inflation and economic challenges continue to put pressure on the housing construction industry, rising construction costs may point to continued affordability challenges for homebuyers, according to the latest data. The Producer Price Index (PPI) from the Bureau of Labor Statistics released last week found that construction costs for single-family homes were up by 3.2%…

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CoStar Group on Feb. 17 announced the launch of Homes AI, which the portal calls a transformative experience powered by Microsoft Azure OpenAI, fully integrated into Homes.com, and accessible to all consumers. For the first time on a major real estate portal, according to the company, consumers can engage in natural, real-time, two-way conversations, by…

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Following on the heels of hedge fund investor Third Point’s recent demand that CoStar Group exit its Homes.com-led residential business entirely, a second hedge fund investor, the New York City-based D.E. Shaw Group, has voiced the same opinion. Even with CoStar firing back at Third Point, saying its demands reflect “their complete misunderstanding of our…

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