Former model Barbi Benton and her developer husband George Gradow, who was released from federal prison in July 2007, have placed their eight-bedroom, 11,608-square-foot mansion in Los Angeles' Bel-Air area on the market for $17,500,000.

Credit the Los Angeles Times' Ann Brenoff for breaking the story online today of the listing of Benton and Gradow's mansion on Antelo Road in Bel-Air, just south of Mulholland Drive. The mansion actually came on the market on September 22, but its celebrity ownership eluded all of us celebrity real estate snoops, largely because it's owned in the name of Gradow's company, the Carbondale, Col.-based Churchill Group. Benton is show here with Suzan Hughes (left) and Mara New (middle).

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Gradow was convicted of tax fraud in 2006 and sentenced to 15 months in federal prison. He was released from prison in July 2007. Benton and Gradow's primary residence is a mansion on Starwood Drive in Aspen, Col. called the Copper Palace (measuring either 20,482 square feet, according to public records, or 27,000 square feet, according to news accounts). See photos of the Copper Palace and here.

Built in 1990, the couple's Bel-Air mansion has 14 baths, a large master suite with dual baths, a dining room that seats 32, a library, an eat-in kitchen, a gym, an office, a media room, an elevator, a spa, a rooftop deck with 360-degree views, security cameras and a three-car garage with adjacent parking for 20 cars, according to public records and listing information. Outdoor features on the 2.4-acre flag-lot-shape property, which sits on a promontory with views of the ocean and city lights, include a pool, a detached, two-bedroom, two-bath guest house, and a separate two-bedroom, two-bath staff residence, according to public records and listing information.

The couple purchased the house in either late 2003 or early 2004 for an undisclosed sum, according to public records.

In the kind of 1970s-supermodel confluence that can only happen in L.A., Benton and Gradow's mansion shares a lot line with Farrah Fawcett's onetime 9,951-square-foot mansion, which Farrah sold in 1999 for $2.7 million. That mansion most recently has been on the market for $9,500,000, as we exclusively reported on August 21. Fawcett also once owned another adjacent house as well, which a successive owner sold for $3,608,000 in January 2008, as we exclusively had reported in February 2008.

Check out an online listing sheet for Benton and Gradow's mansion in Bel-Air -- complete with photos. And, take a look at a property website for the house.