After more than 30 years in their dream home, the O’Neills have decided to downsize slightly. (“We’re building a house directly across the lake,” O’Neill laughs. “You can see it from the front yard.”) Hillcroft is poised to change hands again, but one thing remains certain: the property won’t be subdivided, a fate that has befallen so many of the original estates around the lake. “It’s one of the last [undivided properties] that will ever be available on the lake,” says O’Neill. And due to an agreement that dates back to the 1981 sale, O’Neill will ensure that it stays that way. “The property is one of the most unique on the lake, and the outbuildings are really special, something that people wouldn’t build today,” he says. “We’ve been very, very lucky to live here.”