This document discusses the efficient design of a multi-story building using pre-fabricated steel structure integrated with Building Information Modeling (BIM). It involves designing a 5-story steel building using STAAD.Pro for structural analysis, AutoCAD for 2D drawings, Revit for 3D modeling, and Navisworks for 4D scheduling and clash detection. The building is modeled at each stage of the design process using the appropriate software. Structural analysis is performed in STAAD.Pro to check stability. The project aims to demonstrate how using BIM at various stages can result in a more efficient building design with reduced time and costs.