The rapid expansion of the education sector necessitates the development of infrastructure that is structurally resilient, functionally efficient, and economically viable. This project presents a comprehensive study on the planning, structural analysis, design, and cost estimation of a proposed [G+3] story educational building located in Velugubanda Village, Rajanagaram Mandal, East Godavari District. The primary objective is to develop a robust structural framework that adheres strictly to standard safety and serviceability regulations while optimizing material usage to control construction costs. The initial phase of the project focuses on architectural planning. Using Drafting Software, AutoCAD, the floor plans were developed to ensure optimal space utilization, incorporating adequate dimensions for classrooms, laboratories, administrative offices, and essential circulation spaces like corridors and staircases. Following the architectural formulation, structural 3D modeling and analysis were executed utilizing Analysis Software, STAAD. Pro. The structural design process involves a rigorous assessment of various loads acting on the building. Calculations for Dead Loads, Imposed Loads (Live), and Wind Loads were performed in accordance with IS 875 (Parts 1, 2, and 3), while Seismic forces were evaluated using IS 1893:2016, considering the specific seismic zone of the site. The structural components, including slabs, beams, columns, and the type of foundation, isolated footing foundation were designed using the Limit State Method as per IS 456:2000. Material specifications include M-30 grade concrete and Fe500 grade steel reinforcement. Beyond structural integrity, economic feasibility is a critical component of civil engineering. Therefore, a detailed quantity survey and cost estimation were conducted using the Estimation Method, Center Line Method. The budget was calculated based on the prevailing [2025] State Schedule of Rates (SSR), encompassing all major construction phases from earthwork excavation to finishing items. By integrating precise computer-aided structural analysis with meticulous manual or spreadsheet-based cost estimation, this project demonstrates a holistic approach to building design. The final output yields a structure that not only guarantees the safety and comfort of its employees but also provides a clear, optimized financial blueprint for stakeholders.