This Romanesque building was designed by architect George W. Page who also designed the Hayes Mansion.

"One of a handful of American churches patterned after Unitarian churches of Transylvania, it features a large triple-arched stained glass window on the facade, multiple domes and cupolas, and both round and square towers" [from Highlights of San Jose, California's St. James Park and Environs, a pamphlet by Linda Larson Boston].

The Unitarian Church is also California Historical Landmark 902.