Scan-to-BIM & as-built drawings for a warehouse in Sydney

The client requested an accurate as-built BIM model of a warehouse facility located in Sydney, Australia, developed from point cloud data. The goal was to document the building’s existing conditions and provide a reliable digital basis for future design, coordination, and engineering work.

A key focus of the project was the accurate recreation of the building’s structural system, including roof-supporting steel members, reinforced concrete elements, and secondary structural components. Alongside the structure, ORIGIN modeled the main architectural elements and all visible MEP systems, including lighting fixtures, plumbing lines, HVAC components, ductwork, and cable trays.

As a result, the client received a comprehensive as-built representation of the facility, reflecting its real-world dimensions, existing conditions, applied materials, and the requested architectural, structural, and engineering elements.

One of the key modeling challenges was the warehouse’s dense structural system, especially the exposed roof-supporting steel beams. Their angled positioning, varying geometry, and complex arrangement required careful alignment with the point cloud data to keep the model within the specified tolerance requirements.

ORIGIN also modeled secondary structural components throughout the interior, giving the client a clear view of the existing load-bearing system and its relationship to the architectural and MEP elements.

The model also included reinforced concrete support structures at the basement parking level. Particular attention was given to the column grid and drop cap details, which were recreated from the point cloud to reflect the facility’s actual structural conditions.

Accurate modeling of these elements provided a clearer understanding of the building’s lower-level structure and supported the reliability of the final as-built documentation.

To make the as-built model useful for future coordination, ORIGIN modeled the visible MEP systems captured in the point cloud. This included lighting fixtures, ductwork, pipework, cable trays, and other smaller components present within the building.

Including these systems provided the client with a more complete view of the existing engineering infrastructure and helped make the model suitable for further project planning and development.

The facade areas were modeled with attention to entrances, large-scale windows, and curtain wall zones. Due to their size and geometry, these elements required accurate dimensional control and careful alignment with the point cloud.

This helped complete the as-built representation of the warehouse exterior and ensured that the facade model could support further design, coordination, and documentation work.