The estate features a 7,600-square-foot French chateau renovated and expanded by DioGuardi and her husband, home builder Mike McCuddy. Among the house's features are a 23-foot-tall stone fireplace, beamed walnut ceilings and herringbone walnut floors. The five-bedroom, 61/2-bathroom manse sits on about 3 acres with a studio, an 50-foot-long infinity pool and a hot tub.
DioGuardi, 41, gained recognition as a judge on "American Idol" for two seasons starting in 2009, but her real claim to fame is the hundreds of songs she has written for pop stars including Celine Dion, Gwen Stefani, Christina Aguilera, Britney Spears, Pink and "Idol" winner Kris Allen, among others. Last year she was a judge on "Platinum Hit."
Public records show that DioGuardi bought the property in 2004 for $3.5 million.
Blair Chang of the Agency in Beverly Hills and Andrea Korcheck of Wish Sotheby's International Realty in Sherman Oaks are the listing agents.
Follow me @LATHotProperty