The DLCC was built on urban brownfield, redeveloping an extinct industrial portion of the waterfront reducing the cost of site preparation. Rather than redeveloping the post-industrial wastelands along Philadelphia's rivers, the PCC was built by demolishing a significant portion of Chinatown requiring extensive site preparation and demolition costs, leaving an eclectic and diverse portion of Center City littered with surface parking lots.
The DLCC is the largest Gold LEED certified building in the world for both it's design and construction, and for it's current and continuous daily operations. During the first decade of operation, PCC union employees got their green from the city and state by extorting a full day's pay if they were there for more than an hour.
95% of the demolition required for the DLCC site was recycled. 50% of the new materials needed for the DLCC were produced within 500 miles of the site. 10% of the building is made of post-consumer material. While Philadelphia has installed solar powered trashcans around the perimeter of the PCC, the PCC itself does not offer sorted trashcans to weed out recyclables.
Over 75% of the DLCC is lit by natural light. The primary hall is 100% naturally lit. The PCC air conditions the outdoor tunnel on 13th Street for those waiting for idling buses to take them to hotels as close as a block away.
The DLCC's landscaping is indigenous to western Pennsylvania. The PCC's potted plants are mostly dead.
The DLCC has proven a 66% reduction in purchased water because of an aquifer located beneath the center. The PCC will undoubtedly avoid proposing waterless urinals because the unions say they don't require enough maintenance.

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