Scan to BIM As-Built Documentation for Residential Apartment in Arizona, USA
Multi-disciplinary BIM model developed from point cloud data for a 70,000 sq. ft. residential apartment covering Architectural, Structural, and MEPF disciplines.
Project Overview
Manual site surveys for large-scale residential complexes often lead to fragmented data and costly discrepancies during the renovation phase. Converting massive point cloud datasets into a functional, coordinated model requires both technical precision and a streamlined modeling workflow.
This project involved the transformation of raw laser scans into a comprehensive LOD 300 BIM model for a 70,000 sq. ft. residential apartment. By integrating architectural, structural, and MEPF disciplines, the team delivered a high-fidelity digital twin that serves as a reliable foundation for facility management and future design interventions.
Scope of Work
Architectural
- Detailed Floor Plans
- Exterior Elevations and Façade Profiles
- Partition Walls, Doors, and Window Schedules
- Interior Layouts including Cabinetry and Built-ins
Structural
- Columns, Beams, and Load-Bearing Walls
- Foundation and Slab Layouts
- Staircase and Elevator Shaft Geometry
- Roof Slopes and Parapet Details
MEPF
- Mechanical Ductwork and Equipment Positioning
- Electrical Lighting Fixtures and Power Layouts
- Plumbing Fixture Placements and Piping Routes
- Fire Protection Sprinkler Systems
Client Challenges We Solved
Inaccessible structural and mechanical zones throughout the complex
Requirement for LOD 300 accuracy across all three disciplines simultaneously
No existing digital as-built records, entire model built from raw scan data
Complex MEPF routing across multiple floors requiring full clash coordination
High point cloud noise and variable scan density in confined spaces
Maintaining model quality across all trades within an 18-day deadline
Project Execution Challenges & Approach
Challenge
- Dense point cloud data
- Massive dataset size
- Multi-discipline coordination
- LOD 300 accuracy control
- Tight delivery timeline
Approach
- Referenced segmented scan zones for structured modeling and validation.
- Utilized Autodesk ReCap for indexed point cloud segmentation to optimize Revit performance.
- Cross-verified system layouts using coordinated model reviews.
- Conducted iterative validation checks against scan slices to verify component placement.
- Maintained phased modeling and daily progress tracking protocols for all trades.
Project Inputs and Deliverables
Key Outcomes
Business Impact
"The project required accurate coordination across multiple disciplines and a very large residential footprint. The BIM models delivered were highly organized and aligned well with our renovation planning requirements. Completing the work within such a short timeline helped our teams move into design coordination much faster while minimizing clarification requests during the review phase."
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