In today’s era, the amalgamation of lean construction and Building Information Modeling (BIM) assumes a pivotal role in the design process, collectively emphasizing the importance of efficient construction planning at every stage. Lean construction embodies the ethos of swift and effective work, while BIM serves as a digital tool facilitating comprehensive project planning and organization. The synergy of these two approaches holds the promise of yielding superior results in the field of construction. However, on a global scale, challenges arise due to the fundamental principles of lean construction and a widespread lack of knowledge among the general populace. This paper delves into key aspects such as the origin and principles of lean construction, its variability, its integration with BIM, and an analysis of this union. Additionally, it explores the challenges faced during the real-world implementation of this merger. Also, two case studies regarding lean construction along with how sustainability can be achieved with lean construction has also been mentioned here.