This case study addresses multifamily energy upgrade experiences by two members of the Better Buildings Residential Network—Elevate Energy and the International Center for Appropriate and Sustainable Technology (ICAST).

This paper describes existing barriers to integrating energy efficiency data into real estate markets, and illustrates recent efforts to address them. National cross-industry collaborations have resulted in standard data collection and transfer tools that allow home performance data to be shared across industries. Real estate markets in some regions have begun including these data into multiple listing services (MLS), making them visible during real estate transactions.