The concept of sustainable architecture plays a pivotal role in developing prosperous and environmentally friendly cities. The New Administrative Capital, as depicted in state media, incorporates many sustainable design elements. This includes the use of environmentally friendly building materials, energy-efficient infrastructure, water conservation and recycling, waste reduction, and the provision of green spaces along with efficient public transportation networks. The successful integration of these sustainable features within the NAC highlights the positive outcomes that can be achieved through sustainable urban architecture in major cities. These results not only reduce the environmental footprint but also improve the quality of life and provide economic benefits. However, to encourage the widespread adoption of sustainable urban architecture practices in major cities, further research, policy adjustments, and community engagement are essential. Therefore, this paper aims to present a framework specifically designed to evaluate sustainable initiatives within the New Administrative Capital of Cairo, focusing on its government district and examining the environmental, economic, and societal dimensions. This study will use a qualitative descriptive case study design complemented by a content analysis method.