- A 40-story mixed-use structure located just off Union Square in the heart of San Francisco
- Contains a five-star hotel with 277 guest rooms and 142 luxury condominiums
- The podium level houses both retail and parking
- The building is located along a major fault line in one of the highest category seismic zones in the United States
- The innovative and irregular structure raised many engineering challenges
- DeSimone performed a dynamic analysis on the structure as a whole, as well as its subsections
- Non-linear viscous dampers are used to limit wind impact
- A limit state design approach is utilized to resist seismic forces associated with a Maximum Credible Seismic Event
- Awards:
NASC – Gold Award 2002