It is built in the form of a Latin cross, of mixed red and brown tapestry brick.

The main façade has a gable form with a Romanesque arcaded portico containing the entrance and three tall windows above.

Single-story wings with entrance doors flank the front, and a tower is located on the right side of the building.

[2] The first building of the parish, the school, was completed in 1913 by Donaldson and Meier at a cost of $52,000.

[2] Dwindling population in the latter part of the 20th century led to a merger of St. Catherine with the nearby St. Edward's Roman Catholic Church in 1970; the buildings of St. Edward's were demolished.