Also called Adam Style after Scottish Architect William Adam, Federal architecture dominated design in the United Statesfrom roughly 1780-1840, especially 1785-1815. Very close to Georgian style, Federal was a bit of a refinement, putting an American spin on progressive European trends, it’s name connotating the period of time when Federalism was both created and implimented.
Typically a single rectangle, 2-3 stories and not more than 2-rooms deep, Federal homes were almost always completely symmetrical with a grand central front door. Dramatic windows are in abundance. As with neoclassical architecture it is heavily influenced by ancient Greek buildings. For obvious reasons, bald eagles are a common ornamental motif.
The most famous example of Federal Architecture is the White House, built between 1792-1800.