In the past two weeks there have been 13 closings of Nantucket properties ranging from $450,000 for a 2 BR/1 BA one story house at 23 Friendship Lane to $3,400,000 for 1.76 acres on Nantucket Harbor with a main house and guest cottage. The average selling price of these properties is $1,285,731; the median selling price is $1,100,000 and the average days on market is 329 days. Nantucket Properties Sold Since February 16, 2011