What do you get when you multiply 1,000 square feet by $100?
If Chad Ludeman and Nic Darling are doing the calculations, you get a two-bedroom, one-bathroom house within walking distance of the grocery store, less than two blocks from the subway (known as the “L”) and three stops from downtown Philadelphia.


The historic city of Philadelphia hasn't been known for its skyline in a long time. Now, some developers want to change that with a proposal to construct what would become the tallest building in the Western Hemisphere and the second-tallest building in the world, standing at 1,500 feet, with a very-high degree of energy and water efficiency.