Construction of the New Post Office Building was completed in 1934. The Post Office headquarters was a central feature of the redevelopment. The neoclassical building was designed by architects William Adams Delano and Chester Holmes Aldrich, who took as their inspiration the Place Vendôme in Paris. The central section of the tri-unit building consists of two huge, back to back, semicircular units with side wings. The semicircle formed by the building's curve on its eastern façade was to be mirrored by a similarly curved façade built across 12th Street on the site of the Old Post Office Building.