Chevy Chase Bank, F.S.B. was the largest locally based banking company in the Washington Metropolitan Area. It was acquired by Capital One in 2009 and rebranded as Capital One Bank in 2010. Despite its name, Chevy Chase Bank was a federally chartered thrift regulated by the Office of Thrift Supervision, rather than a bank. It was formerly held and controlled by the B. F. Saul Real Estate Investment Trust; B. Francis Saul II, who founded the REIT and is the grandson of the founder of the B. F.