Sekisui House
Japanese homebuilder and real-estate developer specializing in custom housing, rental properties, residential development, and related services.
Last updated August 26, 2026
AI crawler reads
No AI crawler has read this profile since Oct 28, 2026.
Overview
Sekisui House is a Japanese homebuilding and real-estate development group headquartered in Osaka. It originated in the housing division of Sekisui Chemical, which entered the housing business in March 1960. The operation was separated into Sekisui House Sangyo Co., Ltd. on 1 August 1960, and the company adopted the Sekisui House name in 1963. From its early focus on factory-produced prefabricated homes, it developed into one of Japan's largest residential construction companies, combining custom detached housing with rental housing, condominiums, remodeling, property management, urban development, architectural work, and civil engineering. The company's principal Japanese business is custom-built housing. Its steel-frame portfolio includes systems for low-rise homes and larger multi-storey buildings, while the SHAWOOD brand applies factory-engineered laminated-timber post-and-beam construction to individually designed wooden homes. Sekisui House also operates the Sha Maison rental-housing brand and the Grande Maison condominium brand. Its business model extends beyond initial construction: the group manages rental properties, undertakes renovations, develops residential and mixed-use districts, and sponsors Sekisui House Reit through its asset-management subsidiary. Sekisui House expanded outside Japan gradually. It entered Australia in 2009, acquired the contract-building division of AVJennings in 2010, and formed an equal joint venture with Frasers Property for Sydney's Central Park mixed-use development in 2011. In the United States, it began real-estate development in 2010 and later built a homebuilding platform through acquisitions. Woodside Homes joined the group in 2017, Holt Homes became wholly owned in 2022, and Chesmar Homes was acquired in the same year. The group also acquired Hubble Homes' homebuilding assets in 2023. Its largest international transaction was the approximately US$4.95 billion cash acquisition of M.D.C. Holdings, parent of Richmond American Homes, completed in 2024. The American operation subsequently combined several acquired businesses under the Sekisui House U.S. organization while retaining Richmond American Homes and SHAWOOD as important market-facing brands. Sekisui House positions itself around industrialized construction, design flexibility, durability, environmental performance, and long-term housing value. Factory production is used to improve dimensional accuracy and construction consistency, while the company's custom-home approach allows customers to specify layouts and finishes rather than selecting only standardized plans. The SHAWOOD system is differentiated by factory-cut timber components and proprietary connectors that support broad openings and open-plan interiors. In Japan, the company has also promoted environmental programs such as the Gohon no Ki landscaping concept, Green First energy-efficient homes, and Green First Zero net-zero-energy houses. The group is publicly traded in Japan and is included in major Japanese equity indexes, including the Nikkei 225 and TOPIX 100. The company reported cumulative delivery of more than 2.7 million homes by the fiscal year ended 31 January 2026 and employed 32,186 people at that date. For the same company-designated FY2025 period, it reported net sales of ¥4.198 trillion, operating profit of ¥341.4 billion, and profit attributable to owners of the parent of ¥232.1 billion. Its history has also included a major governance controversy following a fraudulent land transaction in Tokyo in 2017, which resulted in substantial losses, a boardroom dispute, and subsequent shareholder litigation.
History
Sekisui House began as the housing operation of Sekisui Chemical in 1960. The parent company launched the prefabricated Sekisui House A-type model in April of that year, and the housing business was separated into Sekisui House Sangyo Co., Ltd. on 1 August with capital of ¥100 million. The company was international from an early stage: an A-type house was exported to Australia in November 1960. It adopted the Sekisui House name in 1963. The business expanded through industrialized housing, domestic sales networks, and adjacent property services. It entered the second sections of the Tokyo and Osaka stock exchanges in 1970, moved to their first sections in 1971, and joined the Nagoya Stock Exchange in 1972. Its cumulative housing deliveries reached one million in 1993, the year it moved its headquarters to the Umeda Sky Building in Osaka. Sekisui House entered wooden housing more decisively in 1995, when it absorbed Sekisui House Mokuzo and began the SHAWOOD business. That operation traced its corporate history to Toyodo Construction, in which Sekisui House had acquired an interest in 1984. In 2000, the group consolidated its low-rise rental-housing products under the Sha Maison name. Product development increasingly combined structural engineering with environmental and landscape initiatives. Dyne Concrete panels were developed for steel-frame houses in 1984, while Bellburn ceramic exterior tiles were developed for SHAWOOD houses in 2001. The Gohon no Ki, or five-trees, landscaping concept was introduced in 2001. Green First energy-efficient homes followed in 2009, and Green First Zero net-zero-energy houses in 2013. Sekisui House joined the RE100 initiative in 2017 and subsequently reported rapid growth in the proportion of Japanese detached houses meeting net-zero-energy standards. The company's overseas expansion accelerated in the 2000s and 2010s. It announced entry into Australia in 2009, acquired AVJennings' contract-building division in 2010, and formed a 50:50 joint venture with Frasers Property in 2011 to develop much of Sydney's Central Park mixed-use project. In the United States, Sekisui House began real-estate development in 2010 and expanded into homebuilding by acquiring Woodside Homes in 2017. Holt Homes became wholly owned in 2022, Chesmar Homes joined the group in 2022, and Hubble Homes' homebuilding business and assets were acquired in 2023. The M.D.C. Holdings acquisition, completed in April 2024, gave Sekisui House control of Richmond American Homes and substantially enlarged its American scale. Domestic corporate structure also changed. Sekisui House formed alliances with Konoike Construction and its parent, Otori Holdings, in the mid-2010s. After increasing its voting interest in Otori to 51.8% in 2019, the group treated Otori and Konoike as consolidated subsidiaries. In February 2024, it transferred domestic construction operations into Sekisui House Construction Holdings, an intermediate holding company created to coordinate eight construction subsidiaries. The most serious governance episode in the company's modern history followed a 2017 land transaction in Gotanda, Tokyo. A person impersonating the landowner used forged identification documents, and the attempted registration failed. Sekisui House reported a loss of approximately ¥5.5 billion. Criminal prosecutions produced guilty verdicts for ten people involved in offenses including fraud and document forgery. The incident became a boardroom issue in January 2018 when chairman Isami Wada proposed removing president Toshinori Abe. The proposal failed, after which Wada left the chairmanship. A 2020 shareholder-backed slate of directors was rejected, and derivative litigation against former representative directors was dismissed by the Osaka District Court in 2022 and by the Osaka High Court later that year. The episode received renewed public attention after the 2024 Netflix drama Tokyo Swindlers, although the series is fictional. Today, Sekisui House operates as a diversified housing and development group. Its Japanese activities span custom detached homes, rental housing, condominiums, remodeling, property management, urban development, and engineering. Its overseas activities focus chiefly on residential development and homebuilding in Australia and the United States, with additional development activity in Singapore. The group continues to emphasize factory precision, architectural customization, long-term asset value, and lower-energy housing while integrating acquired homebuilders into a broader international platform.
- 2024
M.D.C. Holdings acquisition completed
[1]The acquisition added Richmond American Homes and materially increased Sekisui House's U.S. scale.
- 2022
Chesmar Homes acquisition completed
[1]Chesmar Homes became a wholly owned subsidiary, expanding the United States homebuilding network.
- 2017
RE100 membership and land-fraud incident
[1]Sekisui House joined RE100 and suffered a major loss from a fraudulent Tokyo land transaction.
- 2013
Green First Zero introduced
[1]The company introduced net-zero-energy Green First Zero houses.
- 2009
Australia entry and Green First launch
[1]Sekisui House announced its Australian entry and introduced Green First energy-efficient homes in Japan.
- 2000
Sha Maison rental brand unified
[1]Low-rise rental-housing products were brought together under the Sha Maison brand.
- 1995
SHAWOOD wooden-housing business launched
[1]The company absorbed Sekisui House Mokuzo and began its SHAWOOD timber-housing business.
- 1993
One-million-home milestone
[1]Cumulative housing deliveries reached one million.
- 1970
Initial public listing
[1]Sekisui House was listed on the second sections of the Tokyo and Osaka stock exchanges.
- 1963
Present company name adopted
[1]The company adopted the Sekisui House name.
Products and positioning
A large, design-led Japanese housing group combining prefabricated and custom construction with rental housing, development, property management, and sustainability-oriented residential products.
Steel-frame custom housing
Dynamic Frame System
A light-gauge steel structural system used primarily for one- and two-storey custom homes. Reinforced beams help reduce the need for interior columns, supporting flexible room planning and larger uninterrupted spaces while retaining the production consistency associated with factory-engineered construction.
Multi-storey steel-frame housing
Flexible β System
A heavy-gauge steel system designed mainly for three- and four-storey houses and other buildings requiring larger openings or adaptable layouts. It extends Sekisui House's custom-housing offer into denser urban settings where vertical construction and structural flexibility are important.
Timber custom housing · 1995
SHAWOOD
Sekisui House's wooden housing brand uses factory-cut laminated-timber posts and beams connected with proprietary metal fittings. The system is marketed as individually designed housing rather than a narrow set of standard plans, and is intended to provide broad openings, open-plan interiors, accurate assembly, and reduced on-site cutting.
Rental housing · 2000
Sha Maison
A unified brand for Sekisui House's low-rise rental-housing products. The business combines construction with property-management capabilities, allowing the group to serve landlords and residents through development, building delivery, and ongoing rental operations.
Condominiums
Grande Maison
The group's condominium brand, used for residential developments in Japan. It sits within a broader development platform that includes urban planning, asset management, and residential property services.
Net-zero-energy housing · 2013
Green First Zero
A housing line introduced in 2013 around net-zero-energy performance. It represents Sekisui House's effort to combine high-performance building envelopes and equipment with on-site energy generation and lower household energy consumption.
Controversies
2017
Gotanda fraudulent land transaction
Sekisui House attempted to purchase a roughly 2,000-square-metre Tokyo site from a person impersonating the owner. Forged identification was used, registration failed, and the company reported a loss of approximately ¥5.5 billion. Ten people were later convicted in connection with fraud and document-forgery offenses. The incident also produced an internal governance dispute and subsequent shareholder litigation.
Marketing campaigns
- 2018Paid childcare leave for fathers
Japan
The company encouraged male employees with children under three to take at least one month of childcare leave, with the first month fully paid.
Outcome. The policy was fully implemented in February 2019 and was later reported to have reached all eligible employees.
- 2017RE100 participation
Global
Sekisui House joined RE100, committing to the broader transition toward renewable electricity and positioning itself as an environmental leader in the housing sector.
Outcome. The company described itself as the first housing-industry company to join the initiative.
- 2001Gohon no Ki
Japan
A landscaping and biodiversity-oriented concept centered on planting groups of trees suited to local environments around homes and communities.
Outcome. Became a long-running environmental and landscaping initiative.
Brand decisions
2024
M.D.C. Holdings acquiredM&ABackground
Sekisui House sought greater scale in U.S. residential construction and development.
Action taken
It agreed to acquire M.D.C. Holdings, parent of Richmond American Homes, in an all-cash transaction completed in April 2024.
Aftermath
M.D.C. became a wholly owned subsidiary and significantly expanded the group's American homebuilding operations.
Transaction value. Approximately US$4.95 billion cash acquisition (Announced and completed in 2024)
2017
Woodside Homes acquiredM&ABackground
Sekisui House wanted to build a scalable U.S. homebuilding platform.
Action taken
The group acquired Woodside Homes and used it as a foundation for subsequent U.S. expansion.
Aftermath
Holt Homes, Chesmar Homes, Hubble Homes assets, and M.D.C. Holdings were subsequently added to the American platform.
2011
Central Park joint venture formedM&ABackground
Sekisui House sought to establish a substantial Australian residential-development presence.
Action taken
It formed an equal joint venture with Frasers Property to develop most of Sydney's Central Park mixed-use project.
Aftermath
The project became a major component of the company's Australian development portfolio.
Sources4 sources
Cite this profile: Cite the canonical profile. /brand-wiki/sekisui-house · Editorial policy · How profiles are compiled