Hotel On Phillips was originally built as the Sioux Falls National Bank in 1918. One hundred years later, in 2018, Hotel On Phillips began its restoration and transformation into an upscale chic boutique hotel featuring 90 unique and elegant guest rooms along with many luxury suites. The hotel lobby portrays historical charm and grace. It boasts high fluted columns and houses its original chandeliers. Centered in the lobby as its main focal point stands the original bank vault with its 16-ton door and 24, 3-inch bolts. Lined with Vanadium Steel along with additional safes inside, the vault has been opened up and transformed as the walk-through entrance into the lounge â€“ The Treasury. See our website for a complete list of amenities and services.