Downtown Miami's skyline is rising fast. The Waldorf Astoria Hotel & Residences — a 100-story, 1,049-foot skyscraper that will become Florida's first supertall — has climbed past its 35th floor at 300 Biscayne Boulevard, clearing more than one-third of its final height as of mid-2025.

The milestone marks a significant moment for a project that has captured national attention since breaking ground. Developers PMG and Greybrook Realty Partners, working in partnership with Hilton, are pushing toward a topping-out date in late 2026, with the full building slated for delivery in January 2028.

When complete, the Waldorf Astoria tower will hold the title of tallest residential building south of New York City — a distinction that underscores Miami's accelerating ambition as a vertical city. The project contains 360 residences across its upper floors, with a hotel component occupying a portion of the building. Developers report that more than 90 percent of those residences have already been sold, a remarkable absorption rate that reflects sustained demand for ultra-luxury product in the Downtown market even as broader real estate conditions have cooled elsewhere.

The building's structural design sets it apart visually as well. The tower features a sculpted, stacked form — a series of offset volumes that give the profile a distinctive, almost crystalline silhouette against the Biscayne Bay backdrop. That shape also poses engineering complexity, making each floor gained a notable construction achievement.

At 1,049 feet, the Waldorf Astoria will cross the formal threshold that defines a supertall structure — buildings exceeding 984 feet, or 300 meters — a category that currently has no other representatives in Florida. The project places Downtown Miami in the same conversation as Chicago, New York, and a handful of other American cities that have crossed that benchmark.

Construction progress on supertalls is measured in months and milestones rather than quick turns, and the project still has roughly 65 stories to climb before it reaches its crown. With a topping-out window of late 2026 and a January 2028 finish on the schedule, the development team has approximately two and a half years of active construction ahead.

For residents and commuters in Downtown Miami, the tower's ascent is already a daily presence — visible from Brickell, the MacArthur Causeway, and across the bay from Miami Beach.

Original reporting on the construction milestone was first published by Florida YIMBY.