In Memoriam: John Edward Mahlum FAIA (1939–2025)

The College of Built Environments mourns the passing of John Edward Mahlum FAIA, a respected architect, mentor and UW alumnus who died on March 20, 2025, at the age of 85.

John was a second-generation architect whose career helped shape the trajectory of one of the Pacific Northwest’s most respected firms. The son of Edward K. Mahlum—who opened his Seattle practice in 1948, John studied architecture at the University of Washington in 1961 and later earned his master’s degree from Columbia University. After serving two years in the Army, he returned to Seattle in 1966 to join the firm that would eventually become Mahlum Architects, a name that still reflects his lasting influence.

Throughout his career, John was known for his quiet leadership and his commitment to design that serves people and communities. “John led our firm with a gentle hand and unwavering vision,” shared Anne Schopf FAIA, Director of Design at Mahlum Architects and partner with the Integrated Design Lab in the Department of Architecture. “He embodied integrity, kindness and purpose.”

At Mahlum, John played a central role in shaping a portfolio of institutional projects focused on education and healthcare across the region—including the University of Washington. Following a 1994 report that identified Suzzallo Library as the second most at-risk building on campus due to seismic vulnerabilities, Mahlum Architects in association with Cardwell and Thomas Architects led the design of the library’s restoration. The project provided critical upgrades to the building’s structural integrity while carefully preserving its original aesthetic.

Just as important was his influence on the firm’s internal culture. His approach to leadership was grounded in mentorship, collaboration and care. “John would teach by example. It would transcend to the profession of architecture,” said Mike Yates AIA, a retired partner of Mahlum Architects.

His contributions extended well beyond the firm. John served as President of AIA Seattle in 1979 and was named a Fellow of the American Institute of Architects in 1983. This honor is the highest recognition the AIA gives and acknowledges architects who have made exceptional contributions to the profession and society. He also served as a trustee of the Seattle Architectural Foundation, as a member of the UW Department of Architecture Professionals Advisory Council and as a trustee of the Nordic Heritage Museum.

John Mahlum will be remembered for his thoughtful design, generous mentorship and principled leadership. His legacy lives on in the work of Mahlum Architects and in the many people he mentored throughout his career. At the College of Built Environments, we are proud to count him among our alumni and grateful for his contributions to architecture and to the wider community.