When Osaka, Japan-based Sekisui House bought MDC Holdings, the parent company of Richmond American Homes, for $4.9 billion in 2024, the company not only made a long-term bet on the American market but also reinforced its commitment to bringing its resilient and sustainable building practices to the U.S. In an announcement following the acquisition, Sekisui House CEO Yoshihiro Nakai underscored this mission when he proclaimed that the expanded co…