Abstract: This light wall building construction element with insulation is to be used in the building of the internal and external walls of buildings and in the ceiling asmolen application. The objective is to provide heat, sound and water insulation with a single product without using additional insulation materials and to reduce the load of the building by a considerable degree. Polystyrene strapor or polyurethane materials used as insulation materials in the construction sector are used in the production of the external unit (1) of the product. Foam concrete which holds a special place as a construction material, or light concrete made of light aggregate with pores is manufactured as an internal unit (7) and is installed to the empty volume of the external unit (1) in sufficient quantities while it is still wet. When the concrete inside the internal unit (7) gets hard, the production process of the product is completed.