Walter Burley Griffin (November 24, 1876 – February 11, 1937) was an American architect and landscape architect. He is known for designing Canberra, Australia's capital city. He has been credited with the development of the L-shaped floor plan, the carport and an innovative use of reinforced concrete. Influenced by the Chicago-based Prairie School, Griffin developed a unique modern style. He worked in partnership with his wife Marion Mahony Griffin. In 28 years they designed over 350 buildings, landscape and urban-design projects as well as designing construction materials, interiors, furniture and other household items.