CoStar Group Announces $800 Million Cash Acquisition of New Home Data Leader Zonda

CoStar Group has entered into a definitive agreement to acquire Zonda, a leading provider of data, analytics, and marketplace solutions for the new home construction industry, for $800 million in cash. The transaction was signed on May 28, 2026, and is expected to expand CoStar's presence into the residential new-build sector.

Key Details

• Transaction Terms: CoStar Group will acquire Zonda for $800 million in an all-cash transaction. The deal is not subject to any financing condition.
• Acquired Business: Zonda provides data, software, and marketplace solutions for the homebuilding ecosystem, including the new home marketplace NewHomeSource.com.
• Timeline & Conditions: The acquisition is subject to customary closing conditions, including regulatory approval under the Hart-Scott-Rodino Act, and is expected to close in the second half of 2026.