A feasibility study was conducted for using seismic base isolation in a 30-story, 102-meter-high reinforced concrete building to be built in Istanbul. The study examined the effectiveness of two base isolation systems—Lead Rubber Bearings (LRB) and High-Damping Rubber Bearings (HRB)—by comparing them to the conventional fixed base model. The design was based on both local and international codes. The study also evaluated the cost-effectiveness of the base isolation systems, considering factors such as user comfort (floor accelerations and displacements). Additionally, it explored the architectural and marketing advantages of the base isolation system compared to the traditional design.