Federal-style architecture is the classical architecture built in the United States following the American Revolution between c. 1780 and 1830, and particularly from 1785 to 1815, which was influenced heavily by the works of Andrea Palladio with several innovations on Palladian architecture by Thomas Jefferson and his contemporaries. Jefferson's Monticello estate and several federal government buildings, including the White House, are among the most prominent examples of buildings constructed in Federal style.
Federal style is also used in association with furniture design in the United States of the same time period. The style broadly corresponds to the classicism of Biedermeier style in the German-speaking lands, Regency architecture in Britain, and the French Empire style. It may also be termed Adamesque architecture. The White House and Monticello were setting stones for what Federal architecture has become.