In 2014, a buyer paid $4.7 million for an 1840s Nantucket mansion and restored its original brick floor and hidden well; 12 years later, the 6,106-square-foot historic home sold for $15.25 million on October 27
A historic mansion on Nantucket's Main Street has changed hands for $15.25 million, more than tripling the price it fetched in 2014.
