The building was designed by H. Craig Severance as the lead designer, along with Yasuo Matsui as associate architect and Shreve & Lamb as consulting architects.
Moran & Proctor were consulting engineers for the foundation, the Starrett Corporation was the builder, and Purdy and Henderson were the structural engineers.
The interior was designed by Morrell Smith with Walker & Gillette.
While 40 Wall Street's facade has "modernized French Gothic" features, its massing is designed more similarly to the Art Deco style, and there are also elements of classical architecture as well as abstract shapes.

40 Wall Street is 70 stories tall, with two additional basement stories.
The building's pinnacle reaches 927 feet (283 m), briefly making it the world's tallest building upon its completion.
The Bank of Manhattan Building had an observation deck on the 69th and 70th floors, located 836 feet (255 m) above the street, with the observatory able to fit up to 100 people.
The observatory was closed to the public sometime after World War II.
The building was designed by H. Craig Severance as the lead designer, along with Yasuo Matsui as associate architect and Shreve & Lamb as consulting architects. Moran & Proctor were consulting engineers for the foundation, the Starrett Corporation was the builder, and Purdy and Henderson were the structural engineers. The interior was designed by Morrell Smith with Walker & Gillette. While 40 Wall Street's facade has "modernized French Gothic" features, its massing is designed more similarly to the Art Deco style, and there are also elements of classical architecture as well as abstract shapes.
40 Wall Street is 70 stories tall, with two additional basement stories. The building's pinnacle reaches 927 feet (283 m), briefly making it the world's tallest building upon its completion. The Bank of Manhattan Building had an observation deck on the 69th and 70th floors, located 836 feet (255 m) above the street, with the observatory able to fit up to 100 people. The observatory was closed to the public sometime after World War II.
40 Wall Street