[2] A Usonian home patterned after the honeycomb of a bee, the 3,570 square foot house incorporates six-sided figures with 120-degree angles in its plan, in its numerous tiled terraces, and even in built-in furnishings.

In the years following the departure of the children, the house was expanded and modified (with Wright's assistance) as the professional and personal needs of the Hannas changed.

Although that branch of the fault was inactive during the quake, the foundation and chimney were essentially unreinforced and likely would have collapsed if the earthquake had lasted longer.

The house is one-story high with a central clerestory[9] (an outside wall of a room or building that rises above an adjoining roof and contains windows) and is constructed of native redwood board[7] and batten, common wire-cut San Jose brick,[5] concrete and plate glass.

The house clings to, and completes the hillside on which it was built as the floor and courtyard levels conform to the slope of this one and one-half acre site.