Statement of Significance (as of designation - June 29, 1989):
Begun in 1937 and added to and expanded over 25 years, the main house is the first and best example of Frank Lloyd Wright's innovative "hexagonal design", where rooms flow together and, except the kitchen and baths, every room opens to extensive terraces and the outdoors. Patterned after the honeycomb of the bee, the six-sided figure, with open 120 degree angles, appears not only in the layout of the house, but in the landscape and many of the built in furnishings.