Nicholas Papaefthimiou | AIA, LEED BD+C


infillPDX was founded by Nicholas Papaefthimiou who continues to lead the design and development efforts. Nicholas is a licensed architect and contractor with nearly 20 years’ professional experience across the Unites States and Europe. He holds Masters Degrees in both Architecture and Structural Engineering from the University of California, Berkeley and Bachelor of Science degrees in both Architecture and Urban Planning from the Massachusetts Institute of Technology.  In 2014, he founded infillPDX, a design and research collaborative focused on the development of financially, socially, and environmentally sustainable models of infill housing models to address Portland’s housing crisis.


Nicholas brings the same care and rigor to all of his work, which ranges in scale from award-winning religious and residential architecture to his role as Lead Project Architect for the largest design/build contract in the United States.  He has served on multiple design and awards juries, organized and presented at numerous symposia, and served on several graduate school admission boards.  He currently teaches at the University of Oregon and lives in SE Portland with his wife and two daughters.