The ABC House, or “A Bachelor and Couple” House, was designed to appear as a single house from the exterior, but in actuality, has two houses inside it, one for each co-inhabitant, along with public gallery space. The first home is meant to be occupied by a single “bachelor,” while the second home is meant for a “committed couple,” with extra bedrooms for future plans of extending their family. This house, inspired by mat buildings, is an exploration of degrees of separation and shared space, challenging precedents that help denote public and private space. We took into consideration components such as the number of inhabitants, programmatic use, and varying roof heights to help design and mark territorial space. In addition, the house also landmarks two towers for each house’s master bedroom, adding a personal extension to either space.