U.S. cities, states, and counties are acting with increasing urgency to enact policies that reduce energy use and greenhouse gas emissions from buildings such as building performance standards (BPS). At the same time, they also face a crisis in the affordability of housing, where increasing housing costs threaten to displace untold numbers of residents. This document is meant as an introductory brief for jurisdictions working on BPS to develop strategies, policies, and programs that address housing affordability and counteract displacement in that context.