TL;DRCoStar Group is acquiring Zonda, the leading new-home construction data and marketplace platform, for $800 million in cash. The deal fills the last gap in CoStar’s real estate data empire, which already spans commercial, multifamily, residential resale, and spatial data through more than 40 acquisitions totalling $7.3 billion.
CoStar Group has agreed to acquire Zonda, the leading provider of new-home construction data, homebuilder software, and residential real estate marketplaces, for $800 million in cash. The deal, announced on Thursday, is expected to close in the second half of 2026 and will be accretive to adjusted earnings per share in its first full year.
Zonda serves more than 3,000 customers across the homebuilding ecosystem, including many of the largest residential builders, developers, suppliers, and lenders in North America. Its platform covers the full lifecycle of new-home development, from land acquisition and construction forecasting to community marketing and online marketplaces, tracking more than 500 housing metrics.
Filling the new-construction gap
CoStar has spent the past 15 years assembling what is arguably the most comprehensive real estate information platform in the world. Its CoStar Suite dominates commercial real estate research. Like other data platform operators consolidating their markets, the company has expanded methodically through acquisitions, completing more than 40 deals for approximately $7.3 billion over that period.
