Trans-Anatolian Natural Gas Pipeline Project (TANAP) is a pipeline project of transportation from Azerbaijan’s Shah 2 Gas Field on the Caspian Sea and the natural gas produced in the Caspian Sea in the south of the other areas primarily to Turkey and Europe. During the construction of the project, temporary camp structures, permanent accommodation facilities, and management offices were built with prefabricated modular structures for pumping stations and maintenance centers in different locations. Structures called mobile or “fly camp”, which are on the pipeline construction route and that can adapt to the change of location continuously during construction, were also completed on a turnkey basis. In the construction of the project, DORCE carried out engineering, infrastructure and superstructure works. In this context, Modular Container Units and Prefabricated Steel Construction Building systems were completed as EPC (Engineering Procurement Construction).