A West Indies-style house in the Spice Bay community on Siesta Key that Nautilus Homes built in 2014 recently sold $2,235,000, or $690 per square foot. By contrast, other waterfront home sales over $1.3 million in the past 180 days in the same zip code ranged from $477.95 per square foot to $571.26 per square foot. The residence, located at 1207 Sharswood Lane, Sarasota, comprises 3,235 square feet of interior space and is situated on a .35 acre lot. Details include its estate-sized mahogany front door, hand-crafted finishes, wide plank oil wood flooring, a state-of-the-art gourmet kitchen, a master suite with a European-style spa bath, and a wall of glass sliders opening out to a pool and covered patio. Mike Martino of Keller Williams on the Water was the listing agent.