Langan began working on the redevelopment of Sunnyvale Town Center in the mid-2000s. Since then, we have continued to provide services for the reimagined mixed-use development, now known as Cityline, which includes approximately 600,000 SF of retail space, 1,000 apartments, and 1,000,000 SF of office space. We performed geotechnical investigations across multiple blocks of the development to evaluate subsurface conditions and recommend foundation systems for new structural elements and seismic hazards. We also conducted non-ergodic seismic response analysis, which reduced the accelerations required for seismic design, and provided construction observation and testing services at several locations throughout the site.