The Naugatuck Savings Bank, constructed in 1911, exemplifies Neo-Classical Revival architecture, designed by the New York firm Crowe, Lewis & Wickenhofer. Built from pressed buff brick and limestone, the building exudes classical grandeur. The recessed south entrance is framed by Ionic columns and topped with a flat cornice and a blind marble fan, reflecting the elegance of the design.

In 1934, an addition to the north facade introduced broad pilasters, enhancing the building’s symmetry.

Originally founded in 1870 as the Naugatuck Savings and Building Loan, the bank was established to support local industry workers, such as those from Naugatuck Malleable Iron and the borough’s rubber companies, by providing loans to help them build homes in the community.

Today, it houses the Ion Bank Executive Offices, retaining the architectural character of the original structure.

Designated as part of the Naugatuck Center Historic District on July 30, 1999.