CoStar Group to Acquire Domain Holdings Australia in $3 Billion Deal

On May 9, 2025, CoStar Group (NASDAQ: CSGP) announced a binding agreement to acquire Domain Holdings Australia, a major property marketplace, for an enterprise value of approximately A$3.0 billion. CoStar, which already owns 17% of Domain, will acquire the remaining 83% at A$4.43 per share, amounting to roughly A$2.3 billion ($1.5 billion USD) in cash via a Scheme of Arrangement.

The deal has unanimous backing from Domain's board and key shareholder Nine Entertainment, which owns 60.1% of Domain’s outstanding shares. A shareholder vote is expected in mid-August, with closing targeted for Q3 2025, pending regulatory and court approvals.

CoStar CEO Andy Florance stated the acquisition will allow CoStar to expand its marketplace model to Australia, combining Domain’s strong local position with CoStar’s tech and global expertise. Domain Chair Nick Falloon emphasized the compelling value and strategic opportunity the deal presents for shareholders.