Jason Frantzen

Jason Frantzen is a Senior Partner at Herzog & de Meuron. Since beginning his collaboration with Herzog & de Meuron in 2005, he has represented the company from its offices in both Switzerland and the United States. After overseeing the design and construction of 1111 Lincoln Road in Miami, Jason moved to Basel in 2011, became a Partner in 2014, and a Senior Partner in 2019. Jason is a member of H&dM’s Strategic Board, is responsible for our US Studios, and currently leads project teams based in Basel, New York, San Francisco and Copenhagen.

Jason works across multiple scales, typologies, and geographic locations, with an emphasis on projects in the United States. He oversees a number of ongoing projects including cultural and educational institutions, commercial and residential developments, and several large-scale healthcare and life science projects. His current work includes UCSF Health’s Helen Diller Hospital and the multi-building Potrero Power Station development in San Francisco, Amherst College’s Student Center in Massachusetts, the New North Zealand Hospital in Hillerød, Denmark, and the renovation and extension of a global inter-governmental institution in Nairobi, Kenya. While with H&dM, Jason has completed multiple buildings and has several large-scale projects under construction. Notable completed cultural projects include Calder Gardens, completed in Philadelphia in 2025, and The National Library of Israel, completed in Jerusalem in 2023.

Jason studied architecture at Cornell University, Ithaca, New York, from 1997 to 2001. From 2003 to 2005, he attended the Harvard University Graduate School of Design in Cambridge, Massachusetts; Following his studies, he was awarded the SOM Fellowship for Urban Design. In 2019, Jason was selected to become a member of the Federation of Swiss Architects (BSA).