Prefab houses are buildings that are not built on site, but parts are manufactured in a factory in the form of panels or modules, and then transported to the construction site. Since the houses are built from parts, it is easy for the owner to mount additional rooms or solar panels on the roofs. Many of these houses can be easily adapted to the specifics of the construction site, making this form of construction far more flexible and modern than before. Today, the design of a prefabricated house is a challenge for every architect. The design is becoming more and more inventive with the use of a wide variety of geometric shapes and ecological materials. In this way, this type of house follows the development of current architecture and a sustainable way of building and housing. A big advantage is that there is not much construction waste left after construction. All over the world, the market for prefabricated materials and houses is constantly on the rise.