Beyond the Certificate of Occupancy - Preserving Value, Health, Efficiency

Your multifamily project is complete. People move in. Your contract is closed. Your energy model looked good, but how is the building performing? Is waste management a breeze or a disaster for residents and the maintenance staff? How much water are the occupants using?


This panel will cover lessons learned from hundreds of existing multifamily buildings coupled with best practices for design and construction to promote healthy, durable, and resource efficient multifamily properties.


Learning Objectives:

At the end of the session, attendees will be able to actively:

  • Identify at least two design or construction considerations that promote improved onsite waste,energy, or water management at multifamily properties.

  • Recognize what range of performanceis considered efficient for multifamily buildings, including EUI, gallons/person/day, recycling percentage, and health metrics.

  • List at least three resources to help improve operations and maintenance at multifamilybuildings.

  • Generate a checklist to use on your next multifamily project.



Elly Bunzendahl

Elly‘s holistic approach to building science, conservation programs, and sustainable development and operations has led to valuable qualitative and quantitative outcomes for owners, managers, and commercial tenants, and residents of multifamily housing. She has assessed hundreds of buildings and properties, managed projects ranging from single building strategies to municipal planning and policy changes, developed curriculum and delivered training to hundreds of designers, affordable housing representatives, and subcontractors, and has contributed LEED project assistance and charrette facilitation for commercial, institutional, and residential projects.








Mac Snow

As PSE’s Multifamily Weatherization and Retrofit Program Manager, Mac oversees numerous programs that benefit the triple bottom line for property owners and lower energy bills for residents.  Recently he has been managing PSE’s innovative multifamily strategic energy management (SEM) program that is catalyzing energy savings at large affordable, senior, and market rate multifamily properties using engagement and education to affect behavior change.  He is passionate about using data-driven results and finding ground-breaking approaches to energy conservation.









Socorro Medina

Socorro works for Seattle Public Utilities managing the multifamily recycling education program for the City of Seattle. She currently helps multifamily properties improve their recycling and composting collection. Through previous involvement with the Environmental Coalition of South Seattle, she managed multicultural teams to plan, develop, and implement projects to reduce waste generated by residents, businesses and communities. Socorro is a native of Mexico and often works closely with

Spanish-speaking communities. She has a B.S. degree in Physics from Universidad Nacional Autónomade México and a Ph.D. in Atmospheric Sciences from the University of Washington.








Joel Gregory

Joel started as a Weatherization Energy Auditor and broadened his scope through the American Lung Association of Washington’s Master Home Environmentalist (MHE) program. His interest in sustainability led him to the Sustainable Building Advisor program where he conceived of and co-developed a sustainability program in the Housing Authority. He has helped the Housing Authority develop recycling programs, monitor fleet fuel usage, address hazardous waste management and develop solar photovoltaic installations.

Please reload