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Explore the Priciest Home for Sale in Key Biscayne

At $29.7M and $2,970 a foot

420 Harbor Drive is Key Biscayne's most expensive home for sale on a per-square-foot basis, asking $2,970 a foot, and the second priciest overall with an ask of $29.7 million.

The 10,000-square-foot contemporary has seven bedrooms, nine bathrooms, and a gazebo steps from 100 feet of private beach. Take the elevator to the third floor and you'll find a recreation room, bar area, and 4,000-square-foot rooftop terrace.

It was built in 2015 with the property last selling for $4.1 million in 2002.