Located on one of Charlestown's former commercial squares, the Charlestown Savings Bank Building is the community's most architecturally elaborate commercial building. The Boston firm Moffette and Tolman designed this rare local example of High Victorian Gothic early in their practice. Complicated massing and the varied colors and textures of different building materials distinguish this example. Until the last quarter of the twentieth century, the building housed several of its original occupants, including the locally founded bank and Masonic lodges. The interior retains an early-twentieth-century vault and bank windows and an assembly hall and banquet hall used by the lodges on the upper floors.