Waldorf Astoria Hotel & Residences Miami is the 100-story, 1,049-foot supertall going up at 300 Biscayne Boulevard in downtown Miami — the first supertall ever completed in the Southern United States. Carlos Ott designed the building’s nine-offset-cubes form; Sieger Suarez Architects is the architect of record. BAMO handles interiors. The project is jointly developed by Property Markets Group and Greybrook Realty Partners with Mohari Hospitality, S2 Development, and Hilton. Topping out is expected in 2026, with completion targeted for January 2028.

Project Scope

The form is the story. Nine offset glass cubes spiral upward in a vertical stack, each rotated and offset from the one below, producing different floor plates and view exposures on every cube. From a constructability standpoint, that’s a much harder reinforced-concrete superstructure than a conventional rectangular tower. Each cube transition introduces a transfer condition; outrigger walls and structural slab thickening manage the eccentric loading.

Vertical construction has reached the 60th floor as of early 2026. The reinforced concrete superstructure has been averaging roughly one floor every ten days — fast for a tower of this complexity, though slower than typical Miami residential work for the reasons above.

The program is mixed-use vertical. 387 private condominium residences sit above 205 Waldorf Astoria-branded guest rooms, which sit above public hotel and amenity floors at the base. That stacking arrangement requires careful MEP separation: the brand standard for Waldorf hotel operations doesn’t tolerate residential service overlap, and the elevator strategy splits the cores accordingly. Hilton is the operating partner; BAMO’s interior work has to translate that hotel standard into language that reads as residential at the top of the tower.

Why It Matters

The Waldorf is the first supertall completed in the Southern United States. It surpasses Bank of America Plaza in Atlanta (1,020 feet) and Austin’s Waterline tower (1,030 feet) when topped out. That’s a regional milestone, but it’s a more meaningful technical milestone for Miami’s structural-engineering community, which has had to develop wind, hurricane, and foundation systems for a height class that previously didn’t exist in Florida coastal soils.

The development team’s reception across the rest of the Miami pipeline is also notable. PMG announced a second 985-foot residential project in downtown Miami earlier this year on the strength of Waldorf sales velocity. That suggests the Florida coastal supertall isn’t a one-off; it’s the first of a small generation, all with similar offset-form structural complexity, all of which will draw on the same regional contractor and engineering capacity through the end of the decade.

Project Team & Details