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CoStar Group acquires Zonda (2026)
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acquisitionAnnounced · May 28, 2026Residential Construction DataSource · CredibleArticle · Factual
Zonda
CoStar Group
Zonda · CoStar Group

CoStar Group acquires Zonda

David Najork
David Najork · Founding Software Engineer
Announced · Updated · 1 min read
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Deal value
$800M
Target
Zonda
Zonda
Newport Beach, California
Acquirer
CoStar Group
CoStar Group
Full Acquisition
Status
Pending

CoStar Group has agreed to acquire Zonda, a provider of residential construction and sales data, from private equity firm MidOcean Partners for $800 million in cash. The purchase, announced by CoStar, is expected to be finalized in the second half of the year pending regulatory approvals.

The acquisition allows CoStar to extend its reach into the residential segment of the real estate market, an area it has been increasingly targeting. Historically focused on commercial real estate data, CoStar's acquisition of Zonda signifies a strategic pivot towards offering more comprehensive data solutions across both the commercial and residential sectors. CoStar's founder and CEO, Andy Florance, indicated that this move will bolster the company’s ability to provide extensive information solutions to its clients.

The move comes amid CoStar’s efforts to solidify its standing in the residential data market and diversify beyond its traditional commercial real estate focus. In 2021, CoStar acquired Homes.com for $156 million, aiming to compete more aggressively with leading housing data providers. These investments have not come without challenges. CoStar has faced criticism for its spending spree from activist hedge fund investors and is currently embroiled in antitrust litigation alleging monopolistic behavior, particularly concerning its dominance in internet-based commercial real estate listings.

Zonda itself has been active in expanding its capabilities, having acquired several companies in recent years, including Builders Digital Experience and home design platform Envision. Its integration into CoStar enhances CoStar's potential to innovate and broaden its offerings in the residential real estate data arena.

Looking ahead, the transaction's completion remains contingent on regulatory approval, highlighting the potential scrutiny CoStar may continue to face given its current legal challenges. Ensuring smooth integration and demonstrating the complementary value of Zonda's assets will likely be CoStar's priority as it navigates this acquisition and its broader strategic aims.

Deal timeline

Announced
May 28, 2026 · bisnow.com
Additional milestones (proxy, vote, close) appear as filings and press updates are indexed.
Sector context

This transaction is classified in Residential Construction Data with a reported deal value of $800M. Figures and status may change as sources update.

Sources: bisnow.com · Primary article · FireStrike proprietary index