An existing building converted into a Revit LOD 200 BIM model using 3D laser-scanned point cloud data. The work included site scanning, point cloud processing, and modeling of walls, floors, roof, windows, doors, stairs, and exterior features at approximate dimensions.
Project Overview
An existing residential building was converted into a Revit LOD 200 BIM model using high-precision 3D laser-scanned point cloud data. The house features a complex roof structure, multiple facades, and several extensions, making it an ideal candidate for a comprehensive Scan-to-BIM workflow.
The project aimed to create an accurate digital representation to support visualization, renovation planning, clash detection, and future design enhancements. The deliverables also provided a reliable foundation for facility management and long-term building maintenance planning.
Challenges
The building had irregular roof geometry and multiple extensions, making accurate modeling complex. Existing as-built drawings were outdated or unavailable, requiring full reliance on laser scan data. Integrating point cloud data from multiple scans while maintaining spatial accuracy.
Level of Development 200, represents a BIM model where elements are modeled with approximate size, shape, and location. While not fully detailed or construction-ready, a LOD 200 model provides a reliable visual and spatial representation of the building. It allows for:
Planning and coordination of renovations or design changes
Extraction of floor plans, sections, and elevations
Integration with other design and engineering workflows
A foundation for future LOD upgrades, such as LOD 300, with more detailed information
Essentially, a LOD 200 BIM model balances accuracy and speed, making it ideal for as-built documentation, preliminary design, and visualization purposes.
Why LOD 200 is important for Scan-to-BIM projects:
It allows for rapid conversion of point cloud data into a usable BIM model while maintaining spatial accuracy.
Enables the extraction of floor plans, elevations, and sections directly from the BIM model.
Serves as a foundation for higher LOD upgrades (like LOD 300 or 400), where more precise geometry, construction information, and MEP details are added.
Provides clients, architects, and engineers with a digital model they can rely on for preliminary decision-making, visualization, and renovation planning.
Challenges
The building had irregular roof geometry and multiple extensions, making accurate modeling complex.
Existing as-built drawings were outdated or incomplete, requiring full reliance on laser scan data.
Integrating point cloud data from multiple scans while maintaining precise spatial alignment.
Capturing and modeling interior and exterior details such as stairs, openings, and façade elements with limited access in some areas.
Ensuring the LOD 200 model met project standards while balancing speed of delivery and accuracy.
Coordinating data to produce clear, actionable outputs for architects, engineers, and clients.
Our Approach
1. Comprehensive Site Survey
Conducted 3D laser scanning of interiors and exteriors, capturing all architectural and structural elements. Ensured high-density data coverage for walls, floors, roofs, stairs, windows, doors, and exterior features.
2. Point Cloud Processing
Registered, cleaned, and optimized scan data into a single, unified point cloud.Prepared the dataset for smooth Revit modeling while preserving dimensional accuracy.
3. Revit Modeling (LOD 200)
Created generic walls, floors, roofs, windows, doors, stairs, and exterior features in Revit at approximate dimensions. Maintained alignment with point cloud data for consistency and accuracy. Applied BIM standards, best practices, and modeling protocols.
4. Quality Assurance & Verification
Checked all model elements against the point cloud to ensure high spatial accuracy. Produced floor plans, sections, and elevations directly from the BIM model for immediate use.
Tools & Technologies
Autodesk ReCap – for point cloud processing and registration.
Autodesk Revit 2025 – for BIM modeling and documentation.
Client Benefits
Reduced errors and construction risks through precise as-built modeling.
Future-ready BIM data supporting higher LOD upgrades or detailed design workflows.
Enhanced collaboration for architects, engineers, and stakeholders through reliable 3D models.
Conclusion
This project highlights our expertise in transforming existing buildings into accurate, data-rich BIM models. By combining advanced 3D laser scanning with Revit modeling, we delivered a reliable digital representation that supports renovation planning, design coordination, and long-term facility management.
The resulting LOD 200 model not only captures the building’s current state with precision but also provides a flexible foundation for future upgrades or higher LOD development, enabling clients to make informed design and construction decisions with confidence.
