The building includes Classical Revival architecture and was a work of architect John Mason and of J.L.

The building was listed on the Hawaiʻi Register of Historic Places in 1977 and on the National Register of Historic Places (NRHP) in 1978.

According to its NRHP nomination, the building "is important mainly for its architectural value.

Its eclectic style and solid, imposing appearance is typical of post-World War I banking architecture.

It is designed to give an aura of permanence and stability--a visual assurance to Waimea's inhabitants that the bank was 'here to stay.