Bill is a National Council of Architectural Registration Boards (NCARB) certified architect, licensed to practice in both Pennsylvania and New York.  He is also a Certified Passive House Consultant (CPHC) and a LEED® Accredited Professional. 

Bill received his Bachelor of Arts from Skidmore College (1992) and his Master’s degree in Architecture from Rice University (1998). Prior to opening Mershon Design, Bill worked with KieranTimberlake Associates, SMP Architects and finally as a Studio Director at Re:Vision Architecture, all in Philadelphia, PA. 

Bill’s diverse portfolio of past projects includes the design of a National Park Service visitor center, the adaptive reuse of a 380,000sf convent into a retirement facility, and sustainability consulting for Armstrong World Industries, the Wharton School, and PECO (the electric utility in SE Pennsylvania). His projects have received awards from the Delaware Valley Green Building Council (DVGBC), the Northeast Sustainable Energy Association (NESEA), the Philadelphia Water Department and the Pennsylvania Resources Council, plus a 2006 Top Ten Green Building Award from the American Institute of Architects (AIA).

Bill volunteers as a design studio critic at the Temple University and Philadelphia University architecture schools and has been a guest speaker for the University of Pennsylvania Environmental Studies program and the DVGBC education program. He is also actively involved with several regional environmental advocacy organizations.

Bill is a Senior Fellow in the Environmental Leadership Program (ELP).