It is located in the former Sioux Falls National Bank building, a skyscraper built in 1917, during World War I.

[3] According to the Historic Hotels of America program, "The lead architect for the project was Oscar Wentworth [sic, apparently meaning Oscar Wenderoth], a former director of the Office of the Supervising Architect of the United States Government.

With help from the contracting company Pike & Cook, Wentworth spent the next year developing the nine-story skyscraper with designs inspired by the architectural aesthetics of the visionary John Sullivan.

The building today stands as the only remaining example of this unique brand of architecture—known as Sulluvanesque—in all of Sioux Falls.

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