Commercial buildings have the potential to improve their energy efficiency and long-term usefulness through retrofitting, reconstruction, and renovations. Retrofitting typically entails making adjustments to already-built commercial structures that could boost their durability and strength. In addition to addressing the issue of building replacement, the expansion of rehabilitation, and the urban characteristics of the city as a whole, reconstruction with additional floors can develop into a more affordable option to demolition. The owner’s requirements, urban planning issues, and population density all have an impact on the decision to build more stories. In this project, we will use ETABS 2019 to study an existing G + 8 building both statically and dynamically, try to add more stories, and assess the building’s sustainability. The same building was retrofitted utilizing the FVD technology to help the structure sustain the weight of the extra floors because the incremental floors caused failure of some concrete frames. The results led to the examination of a number of variables, including base shear, story drift, and maximum displacement.