The Australian chatshow host, who married actress Walton in a private ceremony last June, bought the $1.2 million (£720,000) property just outside Los Angeles with the ambition of launching an international career.
Talking about the country retreat style setting of their new home, Walton told Woman's Day magazine: "It's important because the world is so frenetic. I love bushwalking, and Rove's a twitcher, so I've started enjoying bird-spotting, too."
She added: "More and more, the idea of having a child appeals. And it hasn't always been that way."
Since arriving in the US, McManus has reportedly met with talkshow host Chelsea Handler to discuss the possibility of a permanent hosting job.