There have been 16 sales so far this year of waterfront properties, ranging from $715,000 for a 1 BR/1 BA cottage in Codfish Park to $20,000,000 for an estate in Squam with two extra lots and a highly customized and newly built compound. The average selling price of waterfront properties on Nantucket is $5,768,688; the median price is $3,850,000. These properties have sold, on average, for nearly 94% of list price at the time of the sale and the average time on market is 283 days.