The building is clad in red brick with green terra cotta bands, and features two large arches on its street-facing facades.

Single-story wings, originally housing bank offices, extend along each side.

Internal elements include two stained-glass windows designed by Louis J. Millet, a mural by Oskar Gross, and four immense cast iron electroliers designed by Elmslie and cast by Winslow Brothers Company.

On January 7, 1976, it was recognized as a National Historic Landmark for its architectural significance.

[4] In 1981 the bank was featured on a block of four stamps paying tribute to American architects.