A Frank Lloyd Wright design from the early 1950’s, constructed almost half a century after the architect’s death, has hit the market. The home, which was constructed in the 2000’s, is built on a private island in the middle of Lake Mahopac in Putnam County, which is situated directly north of Westchester County in New York. It is priced at $14.9 million, and called Petra, after a prominent freshwater Nymph out of Greek Mythology.

The owner bought the land, along with a small guest cottage designed by Wright, in 1995, for $750K. Following the purchase, he discovered a set of plans for a larger residence which had been commissioned, but never built.

Like many Wright designs, the home shows restraint and extravagance, jubilation and severity, and a sense of effortless flow between dwelling and natural landscape. A sense of transparency resulting from tossing out reliance on tried-and-true construction methods and an emphasis on glass, and a lack of traditional ornamentation; style via purpose, and plasticity—that is, organic flow or continuity in the planar surfaces of the house—and a direct context through setting. Strong, confident and iconoclastic, Wright’s ideal of organic architecture could only find its sense of style through surroundings and functional necessity; form and function, for him, were merged into one expression.

This house is an ideal expression of Wright’s sense of purpose. It’s also characteristically beautiful. Extending into the lake, a lounge or extended salon feels very much like a watercraft, perhaps a ferry. The home incorporates natural stone outcroppings in its design, including a shower in one of the baths, which is dominated by a craggy boulder. Stone is used, too, in interior and exterior walls, as a motif, or a preoccupation.

The home’s toning is extremely warm, with cherry, mahogany and honey finishing frequently used. The rooms foyer—or gallery—presents all of these themes upon entrance, expanding and expounding upon them as the home continues through its 5,000 square feet.

The guesthouse still exists—and has been joined, in the finished composition, by another.

Wright, a highly influential architect, died in 1959. His texts are considered seminal reading for budding architects, or anyone interested in the art, and associated philosophies.