HNTB provided architectural design for Ontario’s new two-story, 225,000-SF convention center, in association with local architect HMC Group and Turner Construction Company. The facility includes a 70,000-SF exhibit hall, 20,000-SF ballroom with seating for 1,300, a spacious kitchen, and 27,000 SF of meeting space. The Center’s contemporary design features a dramatic north-south prefunction corridor, skylighting and natural plantings.