BOCA RATON was once a little pineapple growing settlement twenty miles north of Fort Lauderdale when Addison Mizner, the "Aladdin of architects", swept in to Boca Raton in the wake of the Florida property boom. The core of his dream was the ultra luxurious Cloister Inn which is now a part of the Boca Raton Resort and Club. Everthing is built in a Mediterranean Revival architectural style, and kept alive in the downtown area by strict building codes. New structures must incorporate arched entranceways, fake bell towers and red-tiled roofs whenever possible, ensuring a consistent, distinctive "look."