Designed by James A. Wetmore, Acting Supervising Architect of the U.S. Treasury, the Naugatuck Post Office is a striking example of Spanish Colonial Revival architecture. Completed in 1915, the building reflects early 20th-century design trends influenced by the Public Buildings Act of 1913, merging Mediterranean style with civic elegance.

Constructed of buff brick with terra-cotta trim and marble accents, the structure features a hipped red tile roof and round-arched openings, hallmark elements of the Spanish Colonial style. Its arcaded facade, flanked by shallow pavilions, enhances the building’s symmetry and charm.

Distinctive among the primarily Neo-Classical Revival buildings in Naugatuck’s town center, the post office remains vacant.

Designated as part of the Naugatuck Center Historic District on July 30, 1999, the site was officially listed on the National Register of Historic Places on January 12, 1986.