The Richard C. Smith House is a small Usonian home designed by Frank Lloyd Wright and constructed in Jefferson, Wisconsin in 1950.

The house is one-story, with an h-shaped floor plan composed of diamond-shaped units, where the bottom legs of the h enclose a private terrace around a huge old oak.

The north side of the house toward the road is mostly coursed limestone, giving privacy, and left rough to suggest a natural outcropping.

His blueprints show that he drew an imaginary triangle around the tree, then oriented the diamonds, terrace and house around it.

It is the result of a natural and vital design evolution still underway in the mind of one of the world's greatest architects.