The combustion of fossil fuels for building heating is the largest end use contributor to emissions in the residential and commercial buildings subsectors, accounting for 27% of the state’s GHG emissions in 2017 (Cadmus Group et al., 2020). Highly efficient heat pumps have a critical role to play in in Massachusetts plan to reduce emissions and meet the state’s commitment to a cleaner and more efficient energy future. An article by the Globe (Shankman, S. 2021) indicates that Massachusetts should be electrifying heating in homes at a rate of 100,000 homes per year to meet the state commitments, but the reality is that less than 500 homes were converted in 2020. While in recent years more residential customers have turned to heat pumps as an efficient alternative to electric resistance heating, to shift away from delivered fuels, or in a desire to add cooling to their home, the modest gains in heat pump penetration have largely been limited to single family homes. Given that XX% of the state’s residential units are multifamily, increasing heat pump adoption in MF buildings is critical to the state’s success in meeting its goals. This session will discuss the barriers for HP adoption in MF properties bringing the perspective of different market actors.