This package combines building-level water supply and sewerage systems with external water infrastructure into a single coordinated design process. By treating the project as one hydraulic system—rather than separate internal and external scopes—we ensure consistency in elevations, flow conditions, routing, connection points, capacities, and operational reliability. This approach minimizes redesign loops, eliminates interface conflicts, and streamlines coordination between disciplines. The result is a clear, fully integrated design, from internal risers and equipment to the final discharge or connection point.