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 central business district of Melbourne, Australia. Designed by architect Harry Norris and completed in 1926, it is the grandest example in Melbourne of what is known as the 'Chicago School' or 'Commercial Palazzo' style, featuring large scale classical elements. It has long housed a range of small businesses, and is now known for its creative industry tenants such as fashion designers and artists and specialist retailers. It had the longest operating manual lifts in the city, and the ground floor Cathedral Arcade is one of the most notable arcades in the city.