8 Celebrities You Won't Believe Made Major Money on Real Estate

Property: A 16,000-square-foot Mediterranean-style estate Billy built from scratch in Hidden Hills, CA, complete with six bedrooms and 11 bathrooms and super luxe features like a basketball court and home theater.

Story: The Tae Bo mogul turned his fitness-industry success into a profitable real estate investment. He purchased the land for $1.4 million in 2000 and built a massive estate on it shortly thereafter. After several price reductions, he eventually sold the property for $7.3 million in 2012.

Profit: $5.9 million.