In 1991, Greg Norman paid $4.9 million for an 8.3-acre Jupiter Island estate; after rebuilding much of the compound, he sold the Florida property 30 years later for $55.1 million

• Over the next three decades, however, the golf champion and his wife, Kirsten “Kiki” Norman, transformed the estate into a sprawling compound known as Tranquility.
• They rebuilt several of its key structures and extensively renovated the rest.