The architectural and engineering teams behind the renovation of 600 Fifth Street in Washington, D.C., updated a concrete-framed 1970s Brutalist building with a concrete frame into a modern corporate headquarters, and steel additions were at the center of the design.
Architects Pickard Chilton and Kendall/Heaton Associates, alongside structural engineer Thornton Tomasetti, were charged with delivering a modern, trophy-class building with 400,000 sq. ft of cutting-edge office space and 20,000 sq. ft of ground-floor retail.
T3 RiNo has been named a Best of the Best Project in the Office/Retail/Mixed-Use category by ENR. After winning at the regional level in ENR’s Mountain States & Southwest competition, the project advanced to the national Best of the Best awards. These winning projects represent the highest achievement in design and construction excellence across the United States among projects completed between May 2024 and May 2025.
T3 RiNo, the first large scale mass timber building constructed in Denver, won a Best Project-level award in the Office/Retail/Mixed-Use category.
By Adrienne Nelson AIA, IIDA
Historically, office building lobbies have been purely transitional spaces—beautiful yet briefly occupied. Today, owners and architects are reimagining the lobby’s purpose, design, and user experience.
The AIA Connecticut J.E.D.I. Challenge is designed to inspire and incentivize AIA Connecticut member firms to increase gender and racial diversity in their firms and the profession. In recognition of their commendable J.E.D.I. strategies and efforts, AIA CT recognizes small, medium, and large firms whose aggregated responses scored 30% or higher beyond the baseline score. This is the fourth consecutive year Pickard Chilton has been recognized with this honor.