Our platform addresses the “Five Heavies, Five Lights” challenges of modern building projects—balancing visualization with application, 3D with 2D, macro with micro, effects with data, and digital foundations with updates.Digital foundation: Combines WebGL and pixel streaming for high-quality visualization and deep application. Enables unified 2D/3D data management and integrated rendering, connecting macro GIS services and supporting component-level micro applications smoothly. Multi-source data integration: Connects APIs, databases, and IoT devices, allowing local model updates while maintaining business data associations, ensuring self-sustaining, model-driven scenes. Application impact: Deployed for BIM review and self-inspection platforms in planning and design institutes and government permit review platforms, transforming digital twin capabilities into real-world planning and management efficiency.