A modular multi-container housing structure connector for containers, which each have sides including a roof, a floor, and four lateral sides, includes a connector frame comprising vertical and horizontal struts shaped to connect to at least one of the sides of two adjacent containers and at least one interlock configured to secure the connector frame to the side of one container. The at least one interlock may be a plurality of interlocks. The connector frame may comprise two vertical struts and two horizontal struts each shaped and configured to connect to a respective edge of an adjacent side of two adjacent containers and, responsive to the connector frame being connected to two adjacent sides of two adjacent containers by the plurality of interlocks, the connector frame and interlocks form a container-to-connector frame-to-container connection to establish a weather-tight housing structure with the two or multiple connected containers.