CoStar completes USD 800 million acquisition of Zonda
CSGP•CoStar closes Zonda deal
CoStar Group completed its previously announced acquisition of Zonda for USD 800 million in cash.
The deal expands CoStar into new-home construction data, analytics, homebuilder software, and online marketplaces.
Expected impact on CoStar
CoStar expects the transaction to lift residential-segment profitability and support consolidated margin expansion.
Zonda assets and financial profile
Zonda generated about USD 170 million of revenue in 2025 with a 23% adjusted EBITDA margin.
Assets include NewHomeSource.com and Livabl, focused on new-construction listings and marketing for homebuilders.




