The parish priest, in consultation with the Parish Council, entrusted the design to the local architect John Donaldson, representing the Donaldson and Meier Company. The building differs from the ecclesiastical architecture of Detroit as it features Romanesque Revival elements within a Byzantine Revival structure, additionally enhanced by decoration referring to Byzantine art, e.g. made from mosaics.
This style is relatively rare among the Polish Cathedrals. The building was erected on a plan close to a rectangle with an apse. What attracts attention outside is the facade, flanked by two towers, and inside – four huge domes. The paintings were made in 1928 by Conrad Schmitt Studios of Milwaukee. From the beginning it was a very clear concept, intended to harmonize with the architecture.
Perhaps the most interesting are those elements of the church’s iconographic program which refer to the history of the Polish church in the USA, and in Detroit in particular.