The primary material used in building, concrete, has sustainability issues because of its high cement content. This study looks at creative ways to enhance concrete’s qualities while taking environmental issues into account. This study examines the combined effects of adding carbon fiber and using marble dust as a partial substitute for cement on the performance of concrete. A variety of marble dust and carbon fiber combinations were evaluated, with an emphasis on M65 and M75 grade compositions. Concrete specimens’ mechanical and durability qualities were assessed by extensive testing. The main characteristics that were looked at were water absorption, chloride ion permeability, compressive, tensile, and flexural strengths. The outcomes show notable improvements in concrete performance. The efficacy of carbon fiber and marble dust additions is demonstrated by increased mechanical strength and better durability. These results point to potential uses in high-performance and sustainable building, which will promote innovation in the built environment. To sum up, the combination of marble dust and carbon fiber presents a sustainable method for producing concrete. In order to improve mix designs and evaluate long-term performance and advance the use of ecologically friendly materials in building, more study is required.