343 George Street, Sydney is a heritage-listed former bank building and now nine-storey retail and commercial premises. It is located at 343 George Street in the Sydney central business district, in the City of Sydney local government area of New South Wales, Australia. It was built from 1921 to 1925, and until 2008 housed banking premises of the Commercial Banking Company of Sydney (CBC) and later National Australia Bank. The building is also known as CBC Bank, NAB Bank and Barrack House. The property is now owned by the New South Wales Government-owned superannuation fund. The ground floor (former banking floor) is leased as retail premises, while the upper storeys are used as commercial office space.