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Colleen Mahoney

Colleen Mahoney

Principal Architect, Mahoney Architects & Interiors

Berkeley, California


  • EMSL, 2015
  • Principal Architect, Mahoney Architects & Interiors
  • Founder, A Kid by Nature


Colleen is the principal architect of her architecture and interior design practice. From the design of a unique Tibetan temple, fire stations, the preservation and adaptive reuse of historic buildings, to unique residences – Colleen has lead a team of talented design professionals for over 25 years. Her award-winning firm has been recognized by many organizations and work highlighted in over 40 publications. A recognized advocate for sustainable building practices, Colleen decided to pursue a passion for nature studying to become a Biomimicry Specialist in 2013. In addition to running a thriving design practice, Colleen has served as a leader on the board of directors and as president of many organizations including: the Green Chamber of Commerce, the Marin Women’s Commission, the Tiburon-Belvedere Rotary Club, Meals of Marin, the Petaluma Chamber of Commerce, and the Pacific Association of Women Martial Artists.

Capstone: Thank You for Helping the Earth, Room 204

A Kid by Nature spearheaded a pilot program in two elementary schools to teach children about environmental and social impact. Through collaboration the children collected and created art pieces primarily made from old, unwanted plastic toys. Through a hands-on effort the children learned that together, each person makes a difference - especially if we remember that there is “no away”. Through environmental lessons in the classroom each child became more concerned about the impact of trash and unintended consequences of plastic on nature.


  • EMSL, Sustainability Leadership, Arizona State University, 2015
  • Graduate Certificate, School of Life Sciences, Arizona State University, 2015
  • BA, Architecture, University of California-Berkeley, 1978