The growing concern over environmental sustainability in the construction industry has led to increased utilization of recycled materials derived from Construction and Demolition Waste (C&DW). This study explores the potential of incorporating recycled fine aggregate (RFA) obtained from C&DW as a partial replacement for natural fine aggregate (NFA) in Self-Compacting Concrete (SCC). The impact of RFA replacement at 0, 20, and 40% on the fresh and hardened properties of SCC is assessed. Additionally, Ground Granulated Blast Furnace Slag (GGBS) replaces 40% of the cement to enhance sustainability and reduce carbon emissions. A Polycarboxylic Ether (P.C.E) based superplasticizer was incorporated at 0.8% by weight of cementitious material to enhance workability. The fresh properties of SCC, such as slump flow, V-funnel, segregation resistance, and L-box tests, were assessed to analyze its flowability and stability. Furthermore, the compressive, flexural, and splitting tensile strength of SCC were tested at curing ages of 7, 28, and 90 days. The results indicate that SCC incorporating up to 40% RFA maintains excellent workability and mechanical strength, making it a viable alternative to conventional SCC. This study demonstrates that the combined use of RFA and GGBS in SCC offers an eco-friendly solution, reducing C&DW disposal issues while promoting sustainable construction practices without significantly compromising performance.