Japanese firms are quietly making a huge bet on the U.S. housing market

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Just 10 days ago, on February 10, Japan-based Sumitomo Forestry announced that it had agreed to acquire Tri Pointe Homes—a large U.S. homebuilder ranked No. 715 on the Fortune 1000—for $4.5 billion, signaling that Japanese builders were further accelerating their buying spree of U.S. homebuilders.

Fast-forward to today, and Stanley Martin Homes—which has been owned by Japan-based Daiwa House since 2017—announced that it has agreed to buy United Homes Group, which has a strong presence in the Carolinas, for $221 million—further accelerating Japanese builders’ buying spree of U.S. homebuilders.

Japanese builders are quickly expanding their U.S. footprint through acquisitions.

• Daiwa House: Japan-based Daiwa House has quietly built one of the most geographically diversified U.S. homebuilding footprints among Japanese builders. It entered the U.S. market in 2017 with its acquisition of Stanley Martin Homes, followed by the purchase of Trumark Homes (No. 67 largest U.S. homebuilder) in 2020. In September 2021, Daiwa House completed its acquisition of CastleRock Communities (No. 49 largest U.S. homebuilder), giving it a strong presence in Sun Belt markets in Arizona, Texas, and Tennessee. Together, Stanley Martin, Trumark, and CastleRock span Sun Belt and mid-Atlantic regions, and with Stanley Martin’s newly announced $221 million acquisition of United Homes Group, Daiwa House is further accelerating its U.S. expansion.

• Sumitomo Forestry: For Sumitomo Forestry—a Japan-based forestry, timber, and homebuilding company—its Tri Pointe Homes acquisition this month meaningfully accelerates its U.S. expansion goals, including its stated target of delivering 23,000 homes annually in the U.S. by 2030. In 2016, Sumitomo Forestry became the majority owner of DRB Group (America’s No. 20 largest homebuilder). In April 2025, Brightland Homes (America’s No. 24 largest homebuilder—which Sumitomo Forestry acquired a majority stake of in 2016) consolidated into DRB Group.

• Sekisui House: Japan-based homebuilder Sekisui House, operating in the U.S. under SH Residential Holdings (America’s No. 6 largest homebuilder), has also been on a multiyear U.S. homebuilder buying spree. Since 2017, Sekisui House has acquired homebuilders Woodside Homes, Chesmar Homes, Holt Homes, and Hubble Homes. In April 2024, Sekisui House really shook up the industry when it acquired M.D.C. Holdings (Richmond American Homes) for a staggering $4.9 billion. Sekisui House has also expanded into the U.S. with its homegrown Japanese builder brand, Shawood.

According to ResiClub’s analysis, once the Tri Pointe Homes and United Homes Group acquisitions are completed, Daiwa House, Sekisui House, and Sumitomo Forestry will have a combined market share of at least 5.5% of U.S. single-family home construction.

Why are Japanese firms making such a large bet on U.S. housing?

At a high level, the answer is demographic and structural. Japan’s domestic population is shrinking and aging (fast!), limiting long-term housing growth and risking a sharp contraction for Japanese homebuilding firms like Daiwa House, Sekisui House, and Sumitomo Forestry.

The United States, by contrast, continues to experience population growth and household formation—particularly in the Sun Belt markets where many big U.S. homebuilders operate. For Japanese firms seeking stable, long-duration growth, U.S. homebuilding offers scale and better demographic tailwinds.

There’s also a strategic element. The U.S. homebuilding industry remains fragmented beyond the top few public builders, creating opportunities for well-capitalized global players to roll up regional operators while preserving local brands and management teams. Both Sumitomo Forestry and Sekisui House say they prioritize locally led operations, supported by centralized capital and global expertise—a structure designed to preserve builder culture while providing financial and operational backing.