For Sale: One House, One Island in Florida Keys

The asking price: $12 million

Shopping for a house? How about your own private island?

If you have $12 million, both could be yours in the Florida Keys.

Robert Williford’s one-and-a-half acre property has gotten a lot of attention since it was put on the market in December. That is probably because it's not just a home, it's also an island – East Sister Rock Island.

“Not too many houses are built on a coral reef. I don't think you can do that” anymore, Williford said, laughing.

Williford bought the island near Marathon 20 years ago. He lives in Coral Gables full time, and when he isn't using it as a vacation home he rents it out, along with a boat, for $5,000 a week.

In 1992, the property cost Williford $1 million. Today, it'll cost you $12 million - and Realtor Marvin Arrieta says people from all over the world are showing interest.

"It's a really unique property,” Arrieta said. “You can have your own helicopter. It’s not all islands (that) have that all together – green, location.”

Adding to its uniqueness is something Williford did himself - making the entire home solar and wind powered.

“You don't need any support from the utilities. We get all of our water from the rain,” he said.

The 3-bedroom, 2-bath home comes with a guest house and two boat docks – not to mention a full view of the Atlantic.

Williford says that after 20 years and tons of weekend trips there, his kids are grown and he feels it's just time to sell.

Arrieta says that out of the 1,700 islands that make up the Keys, a mere fraction is like this one.

"Just nine islands have one house, so it's really unique if someone wants privacy there,” she said.

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