Leopalace21 Corporation, together with its subsidiaries, is involved 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 handles leasing and management of apartment rooms, buildings, and other properties, along with maintenance, solar power generation, and real estate brokerage; it also offers broadband, company housing agency services, and small-amount short-term insurance. The Elderly Care Business segment operates nursing care facilities, while the Other Businesses segment operates resort facilities in Guam, including golf courses and a hotel. The company was formerly known as MDI Corporation and changed its name to Leopalace21 Corporation in July 2000. It was incorporated in 1973 and is headquartered in Tokyo, Japan.