The hottest amenity in ultra-luxury buildings isn't the spa — it's a private restaurant downstairs

Tech Insider : Business
A rendering of a restaurant in Florida.
Resident-only restaurants are increasing in popularity.

Tara Berner & Partners

The most expensive ZIP code in America is a Miami island you can only reach by yacht or ferry

Tech Insider : Business, Style
An aerial view of Fisher Island, Florida
Fisher Island, Florida, topped Realtor.com's recent listing of ZIP codes with the highest home prices in the US.

Danny Lehman/Getty Images

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