Abstract:With the continuous advancement of architectural ecologies and digital technologies, the art of large-scale soil-covered architecture has received growing attention in architectural research in recent years, with its design paradigms progressively shifting toward datadriven precision models. This study examines the core challenges in large-scale soilcovered buildings—such as structural safety, slope stabilization, drainage efficiency, and the development of plant micro-environments under complex roof geometries and steep slopes—by exploring digitally-driven precision design approaches. Taking Shenzhen Bay Culture Plaza as a case study, this study develops a LIM-based digital collaborative framework to integrate structural, landscape, and ecological data, enabling parametric modelling and simulation, including load gradient control, stormwater runoff analysis, and planting configuration. The results demonstrate that this method significantly enhances structural safety, slope stability, and ecological compatibility in high-complexity conditions, while ensuring the technical feasibility and implementation precision of a 36 600 m2 soilcovered roof. The study establishes a replicable data-driven design framework for similar projects.