We will show two mid-rise multi-family projects in the northeast that meet either the Passive House or PHIUS+ building energy standard. The Distillery’s 28-unit Phase 1 building in South Boston, MA and the Bayside Anchor 45-unit project in Portland, ME, both now under construction, will be used to discuss the design and construction principles that are employed to radically reduce energy consumption and construct beautiful, low energy, and healthy urban living spaces. Details, testing data and lessons learned will be shared with a special focus on large scale air barrier implementation, efficient ventilation systems, and cost savings and funding metrics.