They're called Rittenhouse Estate. According to Naked Philly, "These homes will similarly sell in a range between one and two million dollars and will be among the most expansive and upscale new construction homes in the area. According to the project's website, the homes will be tricked out with home automation systems, radiant floors, wine cellars, and NEST Thermostats."
The marketing web page is here. It's quite impressive. Some of the models go up to 5,000 square feet and have elevators!