Concrete is a major component of modern construction. But the conventional method of making it relies on extracting natural aggregates, causing significant environmental issues. This study proposes a novel solution: integrating recycled building and demolition debris into the concrete production process. This will assure resource sustainability for future generations and lessen the detrimental environmental effects associated with aggregate mining. The study examines various replacement levels for natural aggregates using OPC-53 grade cement, fly ash, and recycled aggregates to determine how recycled aggregates affect the strength and durability of concrete in comparison to traditional methods. Mechanical characteristics including compressive, split tensile, and flexural strength are present in addition to sorptivity in relation to control concrete, thoroughly inspected with five distinct combinations. The results show a slight decrease in 28-day compressive strength, less water absorption due to higher cement replacement volumes, and lower water-to-cement ratios. The study aims to determine whether using recycled aggregates in concrete buildings is both technically and practically feasible. These significantly benefit the environment by reducing energy consumption, greenhouse gas emissions and water use. They decrease landfill waste, ease waste management burdens, and lessen the environmental effect. In the end, these developments boost biodiversity, lessen pollution, and safeguard nature.