The Tunnel Formwork is a formwork used to pour concrete for ceilings and walls at the same time(they can be different shapes, sizes and modules). They combine the accuracy of off-site with the flexibility and economy of in-situ construction. Tunnel Formwork is effective for use in repetitive cellular construction such as residential blocks, hotels, student accommodation, etc. Formwork units can be made from steel, aluminum, plastic, or fiber glass and are used to construct units. Each unit of molds has different shapes and sizes to form the shape of an apartment unit. Once the forms are positioned, reinforcement is fixed and the concrete is poured and cured. When the concrete achieves sufficient strength the forms are lowered and moved to the next location.