They had hired architect James Douglas of Milwaukee, and he designed a Gothic Revival-style structure much as you see it today.

Its walls were clad in blocks of cream-colored sandstone,[2] with the masonry work supervised by James Livesay.

The congregation found the building hard to heat due to the original high ceiling, so in 1885 they inserted a lower ceiling with hammerbeam trusses decorated with quatrefoils and a pointed arch, designed by David R. Jones and Burling & Whitehouse of Chicago.

In 1976 the church was added to the National Register of Historic Places for its significance in art, architecture and religion.

The nomination summarized: The architectural dignity which characterizes this church is due partly to Douglas' skillful arrangement of its forms, and to the beauty of the memorial windows, where color design and symbolism form an integral part of the total composition.