Abstract: A free standing modular habitat structure is provided. The modular habitat includes a floor, ceiling and walls that comprise a plurality of prefabricated segments that join together to form the floor, ceiling and/or wall. The segments are made of durable and weatherproof outer skin and an insulated core. The insulated core may include raceways for routing wiring and/or plumbing. The insulated core may also include raceways for vertical support structures. Each segment can be solid or include a prefabricated opening such as a door, a window, or a chimney hole. The modular habitat may be a single room or it may be a multi-room habitat with interior walls and equipped with a kitchen, toilet, and/or shower and other amenities. One advantage of clustering multiple habitats together into a single structure is that clustering increases the overall stability of the structure and its ability to withstand harsh weather and high winds.