The doctor put the castle up for sale in 2005 at close to $2 million, but it went into foreclosure. The bank required cash for the home and several offers fell through.
That's when Stuart Castle fell into the Smiths' hands on June 21.
"It was a crazy deal," Smith said. "It's great."
Stuart says he is happy the home has finally sold.
"It's nice that somebody is going to live there and maintain it and take care of it," Stuart said. "But I don't think they realize how big it is for three people, it's huge."
Smith and his family won't get to enjoy the castle just yet. He plans to create two more bedrooms, bringing the grand total to six, for his wife, son and brother Brian, who is in the Navy and reports back and forth to Afghanistan.
"There's a lot of work to get done," Smith said. "We've got to make it our own and sell the house we're currently in."
As for his wife, Kate, she feels far from a princess, he said.
"She's been over there landscaping and doing a bunch of stuff herself," Smith said. "So she doesn't feel like a princess at this point."