High performing concretes are extremely popular and are important to deliver next generation concrete structures. High strength fibre reinforced self-compacting concrete provides the combined benefits of high strength, extremely improved placeability and enhanced ductility and crack resistance. The present study intends to experimentally investigate the performance of high strength self-compacting concrete reinforced with steel and sisal fibres in order quantify the improvement in the flexural behaviour due to fibre reinforcement. Beam specimens are cast for high strength self-compacting concrete of grades M60 and M70 with varying amount of steel and sisal fibre reinforcement. The flexural strength and the deformation at failure of the specimen are monitored to assess the performance of concrete under flexure. The results of the experimental investigations demonstrate the improved performance of the concrete specimen due to incorporation of fibres both in terms of flexural strength and deformation capacity. Also, the type of fibre and volume fraction of fibre reinforcement had a significant impact on the flexural properties of the specimen.