The Nicholas Building is a landmark historic office and retail building located at 37 Swanston St, at the intersection of Swanston Street and Flinders Lane, in the Melbourne central business district, Victoria, Australia. Designed by architect Harry Norris and completed in 1926, it is the grandest example in Melbourne of what is known as 'Commercial Palazzo' style, featuring a solid base, vertical middle floors, and a large cornice.