“Of the Northeast’s most expensive summer destinations, the village of Water Mill, N.Y., in (Southampton Township), appreciated fastest. The median home price there is $1.38 million; it increased in value at an average of 21% a year over the last five years.”   Coming in at #3 on the list was Napeague/Amagansett in East Hampton Township with a median price of $862,129 and an average appreciation rate since 2002 of 20%.

See the Forbes List of Best Places To Buy A Vacation Home