The home sits on a 1.17-acre plot and comes with a private dock, per the listing. The three-story house has 18 rooms, including a home theater, a cellar, and a children's playroom.
"It took four years to build the new house because there was an existing home on the lot that we had to knock down," Delp told Insider.
A lot of the furniture and interior furnishings were customized to his liking, adding to the cost and the time spent, he said.
Despite the effort it took to build the home, it's been hardly lived in. The Delps moved to Florida in 2009, two years after it was completed, and the house has been sitting empty ever since.