In this pivotal project, our engineering team tackled the intricate task of designing a high-rise residential building, addressing both the typical challenges inherent to such structures and additional complexities imposed by the existing physical limitations of the original structure. Our strategic approach extended beyond conventional design, transforming a space type with an oversupply in the market to one with an undersupply, effectively navigating market dynamics. Embracing sustainability, we prioritized the reuse of the existing structure, minimizing resource consumption and associated energy emissions. Simultaneously, our project focused on elevating energy performance, converting a historically low-performing building to meet and surpass current building code standards. This initiative underscored our commitment to environmental responsibility and energy efficiency, aligning with contemporary standards.