There are moments in a development's life cycle that quietly change everything, and most of them happen out of sight. Last week, one of those moments took place beneath the sand at 18801 Collins Avenue, where the South Tower of The St. Regis Residences, Sunny Isles Beach completed its mat foundation pour. With that milestone behind it, the tower is now cleared to rise.
A Foundation Built for the Sky
The numbers behind this pour tell you everything about the caliber of this project. Over roughly 30 continuous hours, crews placed 10,000 cubic yards of concrete into a foundation measuring 13 feet thick and spanning 150 by 135 feet. The operation required about 500 workers, more than 1,100 concrete trucks, six boom pumps running simultaneously, and approximately 4 million pounds of reinforcing steel.
Why does that matter to a buyer? Because a foundation of this scale exists for one reason: to carry a 62-story, 750-foot tower directly on the Atlantic. This is the invisible engineering that ultra-luxury oceanfront living depends on, and it is now complete.
Fortune International Group and Château Group, the joint developers, have framed the pour as a turning point, and we agree. Vertical construction is the phase when a project becomes real in the eyes of the market. Historically in Sunny Isles, it is also the phase when pricing conversations begin to shift.
What Is Rising at 18801 Collins Avenue
The St. Regis Residences, Sunny Isles Beach is a two-tower project designed by Arquitectonica, with each tower reaching 62 stories and 750 feet. The South Tower, now heading skyward, will hold 170 residences. The North Tower will follow with 150 residences, and its groundbreaking is scheduled for the fourth quarter of 2026. Together, the towers will deliver 320 branded oceanfront homes.
One detail sets this project apart from everything else under construction in South Florida right now: 435 linear feet of direct ocean frontage. That is the longest oceanfront stretch of any luxury residential project currently being built in the region, and on a barrier island where beachfront land is essentially finite, that kind of frontage is a permanent advantage.
The St. Regis Standard
The lifestyle program planned here is extensive, with more than 70,000 square feet of indoor and outdoor amenities across the development. Highlights include:
- Two restaurants open to the public, bringing a true hospitality energy to the property
- A full-floor private spa
- Indoor and outdoor pools
- A dedicated fitness and wellness center
- A private residents' club
- Children's programming for families
- The legendary St. Regis Butler Service, the brand's signature
This is the branded residence model at its most refined: the privacy of ownership paired with the service culture of one of the world's most storied hotel names.
Our Take: Why Timing Matters
Remaining residences currently start around $5 million. In our experience representing buyers and sellers across Sunny Isles Beach, Bal Harbour, and the surrounding coastline, the window between foundation completion and topping off is often the most strategic moment to enter a project of this caliber. Inventory is still available, the construction risk narrative has meaningfully improved, and the strongest lines and views tend to be claimed well before delivery.
Sunny Isles Beach has become one of the most competitive strips of oceanfront real estate in the country, and the arrival of the St. Regis flag only strengthens that trajectory. For buyers weighing branded oceanfront options in South Florida, this milestone is worth paying attention to.
Let's Talk
If you are considering a residence at The St. Regis Residences, Sunny Isles Beach, or comparing it against other pre-construction and resale opportunities along the coast, we would love to walk you through the options. The Joelle Team at ONE Sotheby's International Realty specializes in luxury oceanfront properties from Miami Beach to Sunny Isles, and we can help you evaluate floor plans, pricing, and positioning with clear, honest guidance.
Contact The Joelle Team today to schedule a private consultation."
