Builders and developers, whether public or private, can learn from the success of Columbia County NY Habitat for Humanity, which uses Passive House methods to provide high-quality, healthy, and affordable housing. Key lessons include strategic site planning, envelope assemblies and details friendly to unskilled labor, and keeping to budget while coping with design changes, building code variations, fluctuating costs and availability of materials, and evolving Passive House standards. This session will provide case studies and lessons learned from Habitat for Humanity’s collaboration with local design and building professionals – a model for affordable housing throughout the Northeast.