Connecting two separate building units on the building site gives birth to the TWIN compact house. The nearly 61 square meter house can function as a fully equipped spacious home, office, or holiday house. Preconstructing the house in a factory, and using high-quality materials, enables a quick installation process. Between the two units, a waterproof, insulated and structurally rigid connection can be achieved. Available in slanted and flat roof versions. Can be ordered with a green roof, decking, multiple types and colors of both interior and exterior sheeting, solar panels, and solar collectors.