CoStar Group Acquires Zonda for $800M

CoStar Group entered into a definitive agreement to acquire Zonda for $800M in cash. 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 delivers end-to-end solutions spanning land acquisition, development planning, homebuilding analytics, construction forecasting, community marketing, operational workflow management, and online new home marketplaces. Zonda is an attractive B2B business with strong profit margins. The majority of its revenue is subscription-based, with an impressive 104% net customer retention. At the core of Zonda is a proprietary, lot-level database covering new home communities, land development activity, construction status, home sales, and builder operations. This data and the software built around it are deeply embedded in builder workflows and are widely used to support underwriting, land strategy, capital allocation, development planning, forecasting, and sales operations across the industry. Zonda also operates NewHomeSource and Livabl, two online new home marketplaces in the United States and Canada. Top homebuilders contribute listings directly to these marketplaces, giving buyers broad visibility into new home inventory across the development ecosystem. Zonda's platforms offer comprehensive listing experiences - including floor plans, virtual tours, pricing, incentives, and community details - designed to guide buyers from early research through purchase. Because these marketplaces feature new construction exclusively, they give builders highly targeted consumer marketing, lead generation, and merchandising - uncluttered by resale inventory. The acquisition is expected to be accretive to adjusted EPS in the first full year of ownership and to close in the second half of 2026, subject to customary closing conditions and required regulatory approvals.