In the late 1980s, in rapid succession, a series of skyscrapers broke through the long-held “Gentlemen’s Agreement” that unofficially restricted Philadelphia’s buildings from rising above the 548-foot-tall pinnacle of City Hall, creating the now-iconic skyline of Center City. While the skyscraper cluster transformed the area to the west of City Hall, the Market East district to the east continues to lag behind in terms of an imposing skyline. However, East Market Phase 3, developed by National Real Estate Development as part of the East Market complex and currently under construction at 1101-53 Chestnut Street, will boost the local skyline with a pair of towers rising 364 and 288 feet tall. The buildings will bring one million square feet of medical office, residential, and retail space to the neighborhood, and add a sizable public plaza. Today we take a detailed look at the transformative project.