OBY Cooperative designed affordable, turnkey prefabs for homeowners in California’s East Bay as a way to combat the housing crisis. "The idea is that OBY takes on the cost and hassle of building an ADU, and homeowners benefit from having extra room on their property available to rent," company representatives say. Built from carbon-light materials–such as wood sourced from ethically harvested forests and powered by solar panels—the homes are designed with sustainability in mind as well.