Precision and Sustainability in Precast: County Administration North, Santa Ana

The County Administration North Building 14 exemplifies the advantages of using advanced precast solutions to achieve both aesthetic and functional goals in civic architecture. The use of integral-colored precast concrete with a form liner finish was key to replicating the historic sandstone appearance, offering a cost-effective alternative to natural stone while maintaining the building’s visual connection to Santa Ana’s historical roots. The Thinshell Precast panels provided a lightweight yet durable exterior, ensuring the building’s resilience and longevity. 

Located adjacent to its predecessor, Building 16, the North Building seamlessly integrates with the existing architectural landscape, maintaining a cohesive visual identity across the county’s administrative facilities. The repeated use of similar design elements, such as the replicated sandstone finish and the extended shade features, underscores a commitment to continuity and excellence in design.

Moreover, the application of spray foam insulation directly to the Thinshell panels during production played a crucial role in meeting the building’s energy performance targets. This approach minimized thermal bridging and maximized the building’s insulation capabilities, contributing to significant energy savings and supporting the county’s sustainability objectives. The close collaboration between Willis Construction, LPA Design Studios, and Swinerton Builders ensured that the project was delivered on time and to the highest standards of quality and sustainability, setting a new benchmark for civic architecture in Orange County.