Worth Avenue) in Palm Beach. Mizner designed the 37-room El Mirasol ("the sunflower"), completed in 1919, for investment banker Edward T. Stotesbury, head of the town's most notable family of the time. It included a 40-car garage, a tea house, an auditorium and a private zoo. The mansion stood at 348 N. Ocean Boulevard in Palm Beach, but was demolished in the 1950s. La Bellucia, at 1200 South Ocean Boulevard, was built in 1920 for Dr. Willey Lyon Kingsley. In 2009 it was Palm Beach's largest recorded sale at $24 million. Also in 1920, Mizner built a grand Palm Beach estate home called Costa Bella ("beautiful coast") at 111 Dunbar Road for Elizabeth Hope Gammell Slater. Her father was Prof. William Gammell, and her grandfather was Robert Ives of the firm Brown and Ives. In a story published in The New York Times in 1882, her mother was "reckoned the richest woman in America, her property placed at twenty millions or more." Addison Mizner used his primary builder and contractor at that time, Cooper C. Lightbown, who later became the Town of Palm Beach's Mayor from 1922 to 1927. In his book Mizner's Florida, author and historian Donald W. Curl noted the home's "massive stone staircase" and that the home was more formal than Mizner's typical work. This formality is seen in such details as the pure Belgian black marble he used in the entrance foyer, and one of the first uses of terrazzo flooring for the 1920s showcased in the palatial dining hall. Furthermore, Curl notes the "stalactite" lighting fixture and gothic tracery for the dining room ceiling. It is believed that Mizner replicated the plasterwork in the dining room from photographs of the Alhambra that he had taken from his travels in Spain. Costa Bella's massive ballroom and dining hall feature grandiose palladian windows and french doors. Hence, historian Curl comments that, "the extensive fenestration created an open and light vacation house." Costa Bella is the quintessential example of Mizner's architectural majesty encompassing all the elements and building materials he is famous for: towering hand-stenciled wood beamed cypress ceilings, coral stone flooring, antique tiles, elaborate decorative columns and corbels, unique light fixtures, stone carvings and stone-carved fireplace mantels. In 1922, Mizner built the William Gray Warden Residence (Warden House) at 112 Seminole Ave, Palm Beach, which is listed on the U.S. National Register of Historic Places. Another fanciful