Global warming and environmental challenges are becoming major issues in every aspect of our life and specially in architectural design. The need to follow environmental architecture standards is crucial issue in this time. Egypt has a code for improving the energy efficiency of all building types. However, the residential sector doesn’t fully comply to these standards and measurements. This research explores the compliance of the building envelope of R3 residential complex project in the administrative capital as it represents a prototype that will widely be implemented in different areas across the new administrative capital. The research also studies the potential energy savings resulting from optimizing the building envelope to comply with the Egyptian Code for Improving Energy Efficiency in Buildings. The research analysis and simulation revealed that the building envelope is not compatible with Egyptian Code for Improving Energy Efficiency in Buildings for residential buildings. Following the code for the building envelope elements can achieve annual energy consumption savings that are up to 20%.