Waldorf Astoria Miami Begins Its Ninth and Final Cube as Florida’s First Supertall Nears Topping Out
Waldorf Astoria Hotel & Residences Miami has begun construction on the ninth and final glass cube of its 100-story tower at 300 Biscayne Boulevard, Florida YIMBY reported August 27, 2026, with the superstructure at level 85 as of August 23. Topping out at 1,049 feet is expected in winter 2026, making it Florida’s first supertall. For Downtown Miami, the milestone caps a four-year vertical climb that began with the 2022 groundbreaking — and it puts the state’s most-watched branded residence on a countdown to its second-quarter 2028 delivery.
What did the developers just complete — and what comes next?
Per Florida YIMBY’s August 27 report, general contractor John Moriarty & Associates has poured its way to level 85 and started the ninth stacked cube — the last of the offset glass volumes designed by Sieger Suarez Architects with Carlos Ott. The tower is expected to top out at 1,049 feet in winter 2026, with completion targeted for the second quarter of 2028.
The project — developed by Property Markets Group, Greybrook Realty Partners, Mohari Hospitality, S2 Development, and Hilton — will crown the Downtown skyline with 387 private residences above 205 Waldorf Astoria guest rooms, interiors by BAMO. The build has been outsized from the start: its June 2024 foundation pour ran 31 continuous hours and consumed 12,400 cubic yards of concrete, the largest such operation for a Miami high-rise, per Florida YIMBY. Bank OZK and Related Fund Management provided $668 million in construction financing in 2024.
Why does the final-cube milestone matter for buyers?
A tower at level 85 with financing in place and a dated top-out target is a fundamentally de-risked purchase compared with a rendering-stage contract. Structural completion narrows the delivery window, tightens the timeline for buyers’ remaining deposit installments, and typically precedes the developer’s final pricing push on unreleased inventory.
Buyers evaluating late-stage contracts here — or at any tower in the pipeline — should still read the paperwork with the same rigor as a day-one reservation: our pre-construction contract guide and primer on deposit structures cover the mechanics, while our completion-risk framework explains why a visible level-85 superstructure sits at the safest end of the spectrum. For how a Q2 2028 delivery slots into the broader pipeline, see the 2026–2030 delivery calendar.
Waldorf Astoria Hotel & Residences Miami — key figures (Florida YIMBY, August 27, 2026)
| Height | 1,049 feet (100 stories, nine cubes) |
| Construction status | Level 85; ninth and final cube underway as of August 23, 2026 |
| Residences / hotel rooms | 387 / 205 |
| Topping out | Expected winter 2026 |
| Completion | Second quarter 2028 |
| Construction financing | $668 million (Bank OZK and Related Fund Management, 2024) |
Frequently Asked Questions
When will Waldorf Astoria Miami top out?
Winter 2026, per Florida YIMBY’s August 27, 2026 report, once the ninth and final cube reaches the tower’s full 1,049-foot, 100-story height.
When is Waldorf Astoria Miami expected to be completed?
The second quarter of 2028, per Florida YIMBY — delivery of 387 residences and a 205-room Waldorf Astoria hotel at 300 Biscayne Boulevard.
Who is developing the tower?
Property Markets Group, Greybrook Realty Partners, Mohari Hospitality, S2 Development, and Hilton, with John Moriarty & Associates as general contractor and architecture by Sieger Suarez with Carlos Ott.
Will it really be Florida’s first supertall?
Yes — at 1,049 feet (320 meters) it will be the first building in Florida to cross the 300-meter supertall threshold, per Florida YIMBY.
Is a late-stage pre-construction purchase safer than an early one?
Generally, yes: a topped-out or near-topped-out tower with committed financing carries far less completion risk, though buyers trade away early-cycle pricing. Contract terms still deserve full diligence.
For the towers launching, topping out, and delivering across Miami and beyond, explore Haute Residence’s complete coverage of South Florida new developments.