Leopalace21 Corporation, together with its subsidiaries, engages in the construction, leasing, and sale of apartments, condominiums, and residential housing in Japan. It operates in three segments: Leasing Business, Elderly Care Business, and Other Businesses. The Leasing Business segment is involved in the leasing and management of apartment rooms buildings and other properties; maintenance work; a solar power generation business; and real estate brokerage activities. This segment also provides broadband and company housing agency services, as well as small-amount short-term insurance. Its Elderly Care Business segment operates nursing care facilities. The Other Businesses segment operates resort facilities in Guam, which include golf courses, a hotel, and other facilities. The company was formerly known as MDI Corporation and changed its name to Leopalace21 Corporation in July 2000. Leopalace21 Corporation was incorporated in 1973 and is headquartered in Tokyo, Japan.