The objective of BARA is to connect to the current wide usage of concrete in the industry and present an alternative concrete for decarbonization, providing a catalog of structural architectural elements. By incorporating biochar and silica fume into the concrete mixture, potential typologies unfold according to the employment, structural or non structural adding acoustic, insulative and smart design functions, ​​optimizing the use of material and using it in favor of decarbonization. BARA is inspired to create a functionally graded material system. To achieve customizable, smart geometries and aesthetic properties the construction system fuses 3D printing together with casting techniques. The objective is to reduce material usage while increasing carbon storage.