CoStar Group completed its acquisition of Zonda for $800 million in cash on August 21, 2026. The transaction adds Zonda's B2B data platform and online marketplaces (NewHomeSource.com and Livabl) to CoStar's portfolio, targeting the $400 billion U.S. new home construction sector. Zonda generated approximately $170 million in revenue with a 23% Adjusted EBITDA margin in 2025 and serves over 3,000 customers including major homebuilders. This move expands CoStar's residential real estate ecosystem beyond its existing commercial and multifamily data offerings. CoStar Group operates as a leading provider of online real estate marketplaces, information, analytics, and digital twin technology.
