LPA Design Director Keith Hempel Elevated to AIA College of Fellows Share Article Sustainable design leader is the integrated firm’s fourth architect to earn this national honor from the American Institute of Architects LPA Principal and Design Director Keith Hempel “Keith’s commitment to improving building performance and cultivating knowledge among LPA’s integrated design teams is helping to move us all toward a net zero future,” said LPA President Dan Heinfeld. IRVINE, Calif. (PRWEB) February 26, 2021 LPA principal and design director Keith Hempel has been elevated to the 2021 College of Fellows by the American Institute of Architects. Only about 3 percent of the AIA’s 95,000 members earn this recognition, which is reserved for architects who have made significant national contributions to the architecture profession.