More than a quarter of American households live in multifamily buildings. As a result, these buildings are a key focus of State and Territory Energy Office programs that advance energy affordability, efficiency, and resilience. State and Territory Energy Offices support multifamily buildings through building energy codes, benchmarking and building performance policies, financing programs, and energy efficiency incentives, such as the Inflation Reduction Act Home Energy Rebates. These state-led programs also help lower energy costs and ensure that the benefits of upgrades reach both tenants and building owners. 

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Improving Affordability in Multifamily Buildings Call Series – NASEO hosted a six-part call series on opportunities to improve the energy affordability of multifamily buildings. The series equipped State and Territory Energy Offices with case studies and best practices for identifying building needs, engaging residents and property owners, scoping projects, funding opportunities, and consumer education to achieve long-term energy-saving goals. 

  • State Energy Office Perspectives on Multifamily Affordability Programs (September 17, 2025) – This webinar featured speakers from the Colorado Energy Office, Oregon Department of Energy, and Iowa Economic Development Authority who shared their insights on the design, implementation, and outcomes of existing multifamily building programs. 
  • Identifying Multifamily Buildings in Need of Improvement (October 1, 2025) – This webinar featured speakers from the New York State Energy Research Development Authority, Public and Affordable Housing Research Corporation, and National Housing Trust who shared resources that State and Territory Energy Offices can utilize to identify and preserve affordable multifamily housing stock. 
  • Multifamily Resident and Owner Engagement (October 8, 2025) – This webinar featured speakers from the Maine Department of Energy Resources, Anura Energy, and Elevate who provided insights on how State and Territory Energy Offices can engage with multifamily building owners, residents, and developers on energy efficiency projects. 
  • Benchmarking and Project Scoping (October 15, 2025) – This webinar featured speakers from the District of Columbia Department of Energy and Environment, ICF, Enterprise Community Partners, and City of Reno who provided an introduction on benchmarking and spoke to existing programs, such as the Green Communities standard and City of Reno benchmarking program. 
  • Funding and Financing (November 5, 2025) – This webinar featured speakers from the Nebraska Department of Water, Energy, and Environment, U.S. Green Building Council, Community Preservation Corporation Climate Capital, and National Energy Improvement Fund who presented resources and best practices for funding and financing multifamily energy efficiency projects. 
  • Behavior Change and Long-Term Engagement (November 19, 2025) – This webinar featured speakers from the Montana Department of Environmental Quality, Colorado State University, Stewards of Affordable Housing for the Future, and Oracle Utilities who shared how State and Territory Energy Offices can engage with multifamily residents and building owners to change behaviors and achieve long-term energy-saving goals.