The couple's 26-acre ranch in Hidden Valley, Calif., north of Los Angeles, is the epitome of rustic elegance, pairing DeGeneres's notorious love of art and design with de Rossi's passion for horseback riding.
The property, featured in the May issue of Elle Decor out April 16, had fallen into disrepair. But in the four years since they bought it, DeGeneres and de Rossi have transformed it into a stunning showcase of art and design.
"I thought it might take Ellen five years to finish the project," de Rossi says, "and she did it in one. It was shocking!"
The ranch has two large barns at the center, as well as eight cabins, each of which DeGeneres, 55, working with decorator Jay Holman and designer Cliff Fong, designed to be unique. The property mixes 20th-century designs by Jean Prouvé and Arne Jacobsen with industrial furnishings, old portraits and fencing masks.
The talk-show host has even brought a touch of domesticity to the stables. "There are times I'll come to the barn and see a beautiful piece of early American furniture where my horses get groomed," says de Rossi, 40. "I have to explain to Ellen that I need to fit a horse in there."
DeGeneres is known for moving from home to home, but she admits the ranch – which was owned by the actor William Powell in the 1920s, and and has also been a monastery and a rehab center in its lifetime – might be a keeper.
"If I find something else and can see having a new project, I'm open to that," she says. "But I'd have to fight Portia, because this is her dream property. This we may just hold on to."