TSP, Inc. is moving to its own space.

TSP was not a stranger to Watertown when it opened an official office in 2017. TSP’s long history of partnering with Watertown clients stretches to the mid-1950s and the firm’s work on religious and education projects. TSP-designed local buildings include Holy Name and Immaculate Conception Catholic churches, Prairie Lakes Cancer Center, the Watertown Event Center, and the South Dakota National Guard’s Brig. Gen. Ernie Edwards Readiness Center.

The new office in Watertown will be located at 14 W. Kemp Ave. as of February 1, 2021, just around the corner from its original space on South Maple Street.

Office Manager and structural engineer Tadd Holt has been with TSP for nearly 21 years and has worked from his home office in rural Watertown since 2005. The new office will provide the space needed for the architectural and engineering services TSP offers, he said. Projects in Watertown include designing the new animal-care facility at Bramble Park Zoo, now under construction, and the new roof on The Goss Opera House. TSP also is working with local clients to provide designs for the new City Hall renovation, the Boys and Girls Club reroof, Fieber Van’s Implement, and the Dakota Tube addition.

The move strengthens TSP’s commitment to the Watertown community, said CEO Jared Nesje.

“Watertown is expanding rapidly, and we’re excited to be invested in the community’s growth,” he said. “This is a tangible indication of how positive we feel about the future.”

Holt is pleased that his office will remain in the downtown area. “The downtown locale is perfect for enjoying Watertown’s friendly atmosphere,” he said. “The variety of businesses found downtown creates an inviting and productive setting.”


TSP is a multidisciplinary architectural and engineering firm that exists to make our communities better, by design. Through teamwork, service, and passion, we listen and develop a deep understanding of our client’s “why.” We collaborate with them to build trust-based relationships and discover solutions that combine form, function, and economy. To learn more visit TEAMTSP.COM.