The existing buildings exemplify the standard housing stock present throughout DC. Through the vision of THC Affordable Housing and its development team, it became evident that this site was an opportunity to push the perception of green re-development and sustainable building practices. The team decided to pursue Passive House (PH) certification, the most stringent energy standard for buildings in the world. At its basic level, the project involves (3) three-story apartment houses and totals 36 dwelling units, the renovations include new electrical distribution and lighting, fire detection and alarm, upgraded kitchens with new appliances, updated, water efficient bathrooms and finishes, and refreshed wall, ceiling and floor finishes. Dwelling units will receive new HVAC systems. Common amenities include conversion of one dwelling unit to a programmatic suite – for resident’s use with computer work stations and conference space, upgraded common laundry rooms, barrier-free accessways, and an outdoor community patio. Specific Passive House design features include super-insulated and ultra airtight building envelope, high-performance fenestration w/ external solar shading control “boxes”, constant low-flow ventilation implementing energy recovery, strategic and efficient heating and cooling equipment and distribution, moisture-sensitive assembly designs to mitigate the effects of a mixed humid climate and a tight enclosure. Beyond energy reduction strategies akin to Passive House practices, the development team anticipates the use of on-site renewable energy through photovoltaic electrical generation.