According to Trulia.com, Williams' home (named Villa Sorriso) is 20,000 square feet and includes a Cabernet Sauvignon vineyard.
Located between Napa and Sonoma Valleys, the stunning home features five bedrooms, six full and 6 partial bathrooms, a library, theater, elevator, art and wine cellars, bridge gallery and viewing tower.
The estate also includes a solar farm, natural lake, pools, sculpture gardens and olives -- in addition to the vineyard.
Williams got married for the third time in Napa Valley at Meadowood Resort on Oct. 23, 2011 to graphic designer Susan Schneider. "The wedding was very intimate," an insider told Us Weekly. "The ceremony brought people to tears." Williams has three children -- son Zachary, 29, daughter Zelda, 23, and son Cody, 20 -- from his previous marriages.