The architectural identities of a city and its surroundings are crucial for maintaining its quality and preserving its unique features. The cities of Afghanistan have undergone significant changes in their identities due to various internal and external factors. These factors have altered or destroyed the identity of the city, leading to the loss of architectural identity and increased confusion in numerous cities in Afghanistan. Throughout history, the city of Kabul, the largest city, has struggled to maintain an identifiable architectural style due to the rapid growth of informal settlements. Recently, large glass and synthetic material facades have become prominent features of Kabul’s urban landscape. These structures represent a new era of modernity, in contrast to the traditional mud-colored buildings that have long dominated the city’s architecture style. The purpose of this research is to explore the influence of building façades and finishing materials on Kabul's sustainable architectural identity, with the goal of studying the relationship between residential building design features and the city's cultural, social, and historical environment. The study utilizes a mixed-methods approach, which involves conducting a comprehensive literature analysis and a field study that involves collecting data through observations, interviews, and questionnaires to achieve its objectives. The findings indicate that the selection of building façades and finishing materials has a significant impact on the sustainable architectural identity of Kabul. This study offers valuable insights for policymakers, architects, urban planners, and other stakeholders involved in shaping a sustainable built environment for Kabul and other similar cities in Afghanistan.