 Built in a Renaissance Revival style, it features terra-cotta ornamentation on the west and south facades.The Thiesen Building was conceived and financed by Pensacola businessman Christen Ustrup Thiesen, designed by the Atlanta architectural firm of Morgan & Dillon, and constructed by Pensacola contractors Wills & Broughton.Christen Thiesen's career as a Pensacola businessman had begun through unusual circumstances.