Developer and architect John Portman's mind-bending Sea Island beach house could be yours for an equally eye-popping $40 million. Why it matters: The sale marks the first time the Portman-designed ...

Remembering John Portman (1924 – 2017), we return to his Sea Island house ... I – Entelechy II was finished in 1986 on Sea Island, an exclusively ritzy, gated Barrier Island off the Georgia coast, a ...

There's grand, and then there's architect John Portman's beach home in Sea Island, Georgia – Entelechy II. The property, which was designed by the eminent American architect in 1986, as his personal ...