Abstract: A sustainable, comprehensive disaster-resistant and water-saving building structure that has a flood-resistant building structure, a seismic isolation structure, a structure that secures water for fire prevention, and a water-saving structure that uses rainwater for water supply. The building structure includes: a building structure that can be moved as a flood-resistant building structure that floats the building structure by using the water reservoir in the lower level of the building as a drainage type buoyancy tank when flood damage due to significant disaster class rainfall is expected to occur.

Abstract: A sustainable, comprehensive disaster-resistant and water-saving building structure that has a flood-resistant building structure, a seismic isolation structure, a structure that secures water for fire prevention, and a water-saving structure that uses rainwater for water supply. The building structure includes: a building structure that can be moved as a flood-resistant building structure that floats the building structure by using the water reservoir in the lower level of the building as a drainage type buoyancy tank when flood damage due to significant disaster class rainfall is expected to occur.