The Ritz-Carlton Residences in Sunny Isles Beach, Florida. Courtesy Arquitectonica.

The Ritz-Carlton Residences, Sunny Isles Beach



We are providing structural design services for a 54-story oceanfront condominium building on a 2.2-acre site. The 800,000-square-foot tower will rise 649 feet. A third-floor lobby sits atop two parking levels that accommodate 400 cars. The first to fourth floors also house amenities. The building’s 212 units range from two to four bedrooms, and five penthouses with private terraces occupy the upper floors.

The structure incorporates existing 130-foot-long auger-cast piles from a previously planned development into the new foundation. The oceanfront tower is designed to withstand hurricane winds while framing several high end outdoor terraces. A system of reinforced-concrete walls using a combination of conventional rebar and high-strength, large-diameter bars controls the size of columns and walls in the tower to maximize living space in the units. The podium levels – with large and small pools, large-scale plantings and long cantilevers – posed additional engineering challenges. We designed a collection of concrete framed approaches to accommodate this unique program.

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