St. Regis Sunny Isles Beach South Tower Completes Foundation Pour

Fortune International Group and Château Group completed the South Tower mat foundation pour at The St. Regis Residences, Sunny Isles Beach, moving the 62-story oceanfront project toward vertical construction this year. The milestone used 10,000 cubic yards of concrete, 1,100 truck deliveries and 500 workers at the 18801 Collins Avenue site.

Why it matters: - The foundation pour clears a major hurdle for one of South Florida’s largest luxury oceanfront developments. - The South Tower is now set to go vertical, a visible shift that typically signals a project is moving from heavy civil work into building construction. - The project’s scale includes 435 linear feet of Atlantic Ocean frontage, the longest stretch of ocean frontage of any luxury residential development currently under construction in South Florida.

What happened: - Fortune International Group and Château Group completed the South Tower mat foundation pour at The St. Regis Residences, Sunny Isles Beach, Miami. - The three-day operation ran from July 24–26 at 18801 Collins Avenue in Sunny Isles Beach. - Coastal Construction managed the pour for the development team. - The work advanced the South Tower into its next phase after the foundation was set.

The details: - The pour used about 10,000 cubic yards of concrete. - The operation required approximately 4 million pounds of reinforcing steel. - Crews completed 1,100 concrete truck deliveries. - About 500 construction workers participated in the three-day effort. - Six boom pumps ran at the same time for more than 30 hours. - The mat foundation measures 150 feet by 135 feet. - The reinforced concrete mat is 13 feet thick. - The South Tower will have 170 residences. - The South Tower is one of two 62-story towers planned to rise 750 feet above the Atlantic Ocean. - Vertical construction on the South Tower is scheduled to begin this year. - Preparations continue for the North Tower, which will have 150 residences and is scheduled to break ground in early Q4. - Designed by Arquitectonica, the project will include more than 70,000 square feet of indoor and outdoor amenities. - Planned amenities include two public-facing restaurants, a full-floor private spa, indoor and outdoor pools, a fitness and wellness center, a private residents’ club, children’s programming and St. Regis Butler Service. - Remaining residences start at approximately $5 million. - More information is available at the project website or by calling 305.704.4700.

Between the lines: - The development is moving from foundation work into the phase where the tower begins to reshape the skyline, which usually makes progress easier for buyers and the market to see. - The project leans heavily on branded luxury positioning, pairing St. Regis hospitality with a large amenity package aimed at full-time residents. - Coastal Construction’s repeated work with the developers suggests an established relationship on complex South Florida projects. - The disclaimer makes clear the project is not owned, developed or sold by Marriott International, even though it uses St. Regis branding under license.

What's next: - The South Tower is expected to start vertical construction this year. - The North Tower is expected to break ground in early Q4. - The project remains on track for eventual delivery as both towers advance through their next construction phases.

The bottom line: - The St. Regis Residences, Sunny Isles Beach has moved past one of its most demanding construction milestones and is entering the more visible stage of development.