The growing prevalence of disposable paper cups poses a significant environmental challenge due to the waste generated and the potential release of microplastics (MPs). This study investigates the utilization of paper cup waste as a fractional addition for fine aggregates in producing paver blocks. By incorporating paper cup waste into construction materials, we aim to mitigate environmental pollution and explore sustainable waste management practices. The materials used in this study included ordinary Portland cement (53 grade), plaster sand, coarse aggregate, and paper cup waste collected from the NKOCET college canteen. Cement and coarse aggregate were tested for various properties as per Bureau of Indian Standards (BIS) codes. The paper cup waste underwent tests to determine physical properties such as density, moisture content, and ash content. The waste was then blended with the dry mix concrete in varying proportions (0% to 7%) to replace fine aggregates. Compressive strength tests were conducted on the paver blocks with different percentages of paper cup waste. The results indicated that including paper cup waste up to 3% by weight of fine aggregates did not significantly compromise the compressive strength of the paver blocks. However, higher percentages of waste led to a noticeable decline in strength. This demonstrates that paper cup waste can be effectively utilized in concrete production, providing a viable method for recycling this type of waste. The findings of this study highlight the potential of using paper cup waste as a sustainable material in the construction industry. Replacing a portion of fine aggregates with this waste makes it possible to produce paver blocks with adequate strength while reducing environmental pollution. This approach not only offers a solution to the disposal problem of paper cups but also contributes to the progress of eco-friendly construction materials. Further studies are recommended to optimize the mix proportions and to investigate the long-term durability of the paver blocks made with paper cup waste.