450 ARCHITECTS - Key Persons


AIA, LEED

Job Titles:
  • Staff Member

Amelia Leland

Job Titles:
  • Designer

David Bushnell

Job Titles:
  • Founding Principal, Passed
For over 20 years, David was co-founder and principal of 450 Architects. David's work was recognized with regional and international awards, in San Francisco, New York, Seattle, and Switzerland. He was responsible for the design and construction administration for a variety of projects, ranging from large-scale commercial projects to small-scale interiors, including educational, institutional, industrial and commercial buildings, housing, and renovation projects. David's collaborative approach yielded design solutions that were inspired by thoughtful understanding of projects, innovation and sustainability thate developed consensus and unique solutions tailored to each project. His latest projects included the LEED Gold Certified San Francisco Waldorf High School, San Francisco Unified School District's first solar powered school - the Argonne Child Development Center, and a private residence that integrated the first rainwater harvesting system for domestic use in the State of California. David was also most active in his community, serving on the Board of Directors of Architects Designers Planners for Social Responsibility, working to support environmental protection, ecological building, social justice and the development of healthy communities. His academic experience included a Bachelor of Architecture degree from Cornell University, teaching design at the Swiss Institute of Technology (ETH) in Zurich, Switzerland, and was a visiting critic at Columbia University and MIT. David is missed with each day 450 Architects continues to carry on.

Kelly Elmore

Job Titles:
  • Designer
Kelly has spent the majority of her career designing sustainable and high-performance building projects. She has experience in many sectors including higher education, civic, sports and rec, historic preservation, arts and entertainment, retail, and urban planning. She received her B. Arch at the University of Oregon in 2016 where there was a strong emphasis on environmentally sustainable design. Since then, she has earned her LEED AP BD+C accreditation and championed the energy modeling group in the design tech and sustainability committees at her previous firm. Kelly continues to pursue a deeper understanding of energy use mitigation strategies through materials, technology, and passive design. Born and raised in San Francisco, Kelly brings her deep understanding of the place as well as her experience studying architecture in the Pacific Northwest.

Natalie Haro

Job Titles:
  • Marketing Manager

Perry Wexelberg

Job Titles:
  • Partner
  • Project Architect

Richard Parker

Job Titles:
  • Founding Principal
Richard has more than thirty years of experience providing comprehensive architectural design services. As principal and co-founder of 450 architects, Richard has been responsible for design and project management on a diverse range of projects and has extensive experience leading neighborhood community design workshops. Richard advocates for changes to state and local building codes to facilitate green building, social and environmental justice, and received the SAFE-BIDCO 2006 Entrepreneur of the Year Award and Certificate of Recognition from the California State Assembly. He lectured at the 2005 World Environment Day and 2007 Dwell on Design conferences and has written articles on sustainable building for the San Francisco Business Times and Green Home Guide's "Ask an Expert" series. He volunteers his time with non-profit groups including Education Outside (formerly the San Francisco Green Schoolyard Alliance), San Francisco Urban Agriculture Association, the Youth Leadership Project for a Sustainable Future, The Local Investment in Child Care Project, and has mentored youth through the Architectural Foundation of San Francisco. Currently, he serves on the Advisory Board of Directors for the California Academy of Science's Teacher Institute for Science and Sustainability (TISS) and the International Schoolyard Alliance. Richard has a Bachelor of Architecture degree from Cornell University and is a licensed architect in California.