Elizabeth A. D. Powers


Principal, Owner


Certified Sustainable Building Advisor
LEED Accredited Professional BD+C (Building Design + Construction) and ID+C (Interior Design + Construction)


Concentrations & Specialties

Effective integrative design, construction waste management


As a Principal and part-owner, Elizabeth manages many aspects of O’Brien & Company’s consulting and education services. She is the Principal-In-Charge on over three dozen LEED and sustainable building projects for the company. Elizabeth uses the knowledge she’s gained from sixteen years in the field and her skills motivating people to facilitate an integrative design process, using the IDP standard being developed by the American National Standards Institute. She helps projects develop green building performance benchmarks, and provides technical and research assistance in sustainable site development, green building materials, and sustainable construction practices. She has served as the lead instructor for the Seattle Sustainable Building Advisor certificate program, is a LEED Accredited Professional, and is completing a degree in Landscape Architecture.

Proudest professional accomplishment

Helping to create a mission-based company that is a great place to work

What inspires me

The idea that we could create cities that function like an ecosystem

How I stay informed

Environmental Building News