Work is progressing on the renovation of 550 Madison Avenue, a 684-foot-tall commercial skyscraper in Midtown East, with construction underway on Snøhetta‘s triple-height steel-framed glass canopy over its new public garden. Designed by Philip Johnson and John Burgee, the 37-story Postmodern landmark opened in 1984 and is undergoing a 21,000-square-foot overhaul led by The Olayan Groupand RXR Realty that will yield a new café, elevated and ground-level landscaping, expanded seating with additional tables, and public restrooms. AECOM Tishman is the general contractor, Gensler is designing the lobby space, Orange County Ironworks is the steel fabricator, and Gabriel Steel Erectors is assembling the steel over a rectangular space on the western side of 550 Madison Avenue that spans between East 55th and 56th Streets.