As architectural practice continues to evolve alongside technological innovation, augmented reality (AR) has emerged as a powerful tool for advancing architectural visualization. This paper presents a comprehensive examination of the role of AR in the architectural industry, with particular emphasis on how it is transforming the visualization, communication, and evaluation of design concepts. By integrating digital models into real-world environments, AR enables architects and designers to create immersive and interactive experiences that go beyond the limitations of conventional two-dimensional and three-dimensional representations. These capabilities support clearer client communication, facilitate real-time design adjustments, and improve spatial understanding, thereby enhancing the overall design process. Despite these advantages, the adoption of AR is constrained by challenges such as high implementation costs, technical complexity, and integration with existing workflows. The paper further explores emerging and future applications of AR in architecture, including its integration with Building Information Modeling (BIM), construction management processes, and collaborative design platforms