In this study we modeled the same home in four different softwares: Revit 2016, Revit 2019, eQuest, and Design Builder. The intent was to use these softwares to analyze and predict how much energy, particularly in warmer regions, is lost and absorbed in homes. With the implication of these Building Energy Modeling tools, we then compared the output data with manually calculated energy use data. We then concluded which software was most precise and accurate compared to the manual calculations. Given our research, we hope to give Architects and Building Scientists knowledge of the most accurate software to help design efficient homes. With rising global temperatures, energy use has increased over the years to keep buildings cool. We hope that the results of this study will allow professionals to use correct software to accurately design energy conscious homes in effort to cut the amount of fossil fuels a building consumes.