This study focuses on the analysis and design of a G+7 office building in Chennai using the structural software ETABS. The building with a typical floor height of 3.9 m and 3.6 m at the stilt level. It has a length of 56 m and width of 25 m. As the structure is planned to be an office building for a tech park, majority of the floor is earmarked for computer systems, and cubicles, and thus will be a typical office floor, with pantry areas and restrooms located in certain marked areas, which will have sunken floors. In addition to the above-mentioned functions, there will be an electrical room with higher equipment loads, and staircase regions and lift lobby areas with higher live loads. In this project, ETABS software were used for modelling, analyse and design the office building for optimization of structural members, load distribution, efficiency of material selection and compliance with IS codes. Key findings from ETABS analysis includes storey drift, base shear, bending moment, shear force and deflection. The end use of this structure is for a IT park, so the required design life of the building is 50 years. To ensure that the building properly serves its function for the whole design life duration, necessary design considerations should be taken care of as per IS code.