Developer Craig Robins has signed up office tenants at the newest development within the Miami Design District luxury mall, including the private equity firm of billionaire Josh Harris, who co-founded financial behemoth Apollo Global Management and owns the Washington Commanders NFL team.

In the biggest transaction, Atria Health Research signed a 55,000-square-foot lease at the Sweetbird North mixed-use development. The company, which offers medical concierge services, charges a $60,000 annual membership fee after a one-time $100,000 initiation fee. It will occupy the third, fourth, and fifth floors of the eight-story development. 

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Sweetbird North broke ground Wednesday after securing a $125 million construction loan from French bank Crédit Agricole last month. Construction is expected to be complete in 2028.

The 120,000-square-foot development, which includes 92,000 square feet of office space and 22,500 square feet of ground-floor retail space, abuts the Museum Garage at 95 Northeast 40th Street, across the street from Alo and Alice + Olivia stores. 

The sponsors of the project designed by world-renowned Snøhetta include the original backers of the 18-block mall, Miami Design District Associates: Robins’s Miami-based Dracra, LVMH-backed L Catterton Real Estate and Bernard Arnault’s family office. 

New York-based private equity firm Raycliff Capital, another sponsor of Sweetbird North, will be taking a floor at the development. 

26North Partners, the firm Harris founded in 2022 after stepping down from Apollo Global Management, will take another floor. The New York-based private equity firm was previously based at 404 Washington Avenue, an eight-story, mixed-use building in Miami Beach. 

Sweetbird North is part of a broader expansion at the Miami Design District, which has become a popular luxury mall home to Prada, Chanel and Hermes boutiques. 

The partners have unveiled plans for a 25-story condo tower and a 12-story hotel, branded by luxury hotel Fouquet’s and designed by Pritzker Prize winner David Chipperfield, which has yet to break ground.

Julia Echikson can be reached at jechikson@commercialobserver.com.