The Reaction Housing System is a rapid response, emergency housing system that flexible enough to meet any housing challenge. It is a kit of parts that primarily consists of housing units called Exos, accessories, and supporting infrastructure. The Reaction system can scale its response on demand from a single family's needs to the needs of an entire region whose population has been displaced on demand. It offers an unparalleled, rapid response housing solution whether it is responding to the aftermath of an earthquake, wildfire, hurricane or man made event.