A complete breakdown of the Scan to BIM workflow used across renovation, retrofit, and facility management projects to eliminate site alignment surprises.
Renovation and retrofit projects often fail because teams work from outdated drawings and assumptions instead of verified site conditions.
Walls shift. Services get rerouted. Equipment changes over time. But in many projects, the documentation never reflects what was actually built. This is where a proper Scan to BIM workflow becomes critical.
By combining laser scanning technology with BIM modeling, project teams can create an accurate digital representation of existing conditions before design and construction begin. The result is better coordination, fewer surprises on site, reduced rework, and improved project decision-making.
Here is a complete breakdown of the Scan to BIM workflow used across renovation, retrofit, and facility management projects.
1. Project Planning
Project planning is the foundation of every successful Scan to BIM workflow. Before scanning begins, the team defines the project scope, required Level of Detail (LOD), deliverables, and intended use of the BIM model.
2. Site Preparation
Before laser scanning starts, the site must be reviewed and prepared carefully. The scanning team identifies scanner positions to ensure full coverage of the building. Laser scanners are typically mounted on tripods and placed at multiple positions throughout the building to capture exact distances to surrounding surfaces.
3. Laser Scanning and Registration
Laser scanning is the core of the Scan to BIM process. Aligns all scan positions into a single coordinate system using reference points and specialized software such as Autodesk ReCap, Faro Scene, or Leica Cyclone.
4. Data Processing
Once scanning is complete, the point cloud data is processed and cleaned. Raw scans often include unwanted information such as moving people, temporary equipment, or scanning noise, which are removed to improve clarity.
5. BIM Modeling
After processing, the point cloud is imported into BIM software such as Autodesk Revit. Modelers create architectural, structural, and MEP elements directly from the scanned data.
6. Quality Assurance
The BIM model is checked against the point cloud to verify accuracy, alignment, and completeness. Teams use tools like Revit section views and Navisworks to review discrepancies.
7. Delivery and Handover
Typical deliverables include Revit models (RVT), IFC files, DWG drawings, registered point clouds, and 2D documentation.
8. Post-Project Review
The team evaluates project outcomes, gathers stakeholder feedback, and documents lessons learned for future improvements.
Walls shift. Services get rerouted. Equipment changes over time. But in many projects, the documentation never reflects what was actually built. This is where a proper Scan to BIM workflow becomes critical.
By combining laser scanning technology with BIM modeling, project teams can create an accurate digital representation of existing conditions before design and construction begin. The result is better coordination, fewer surprises on site, reduced rework, and improved project decision-making.
Here is a complete breakdown of the Scan to BIM workflow used across renovation, retrofit, and facility management projects.
1. Project Planning
Project planning is the foundation of every successful Scan to BIM workflow. Before scanning begins, the team defines the project scope, required Level of Detail (LOD), deliverables, and intended use of the BIM model.
2. Site Preparation
Before laser scanning starts, the site must be reviewed and prepared carefully. The scanning team identifies scanner positions to ensure full coverage of the building. Laser scanners are typically mounted on tripods and placed at multiple positions throughout the building to capture exact distances to surrounding surfaces.
3. Laser Scanning and Registration
Laser scanning is the core of the Scan to BIM process. Aligns all scan positions into a single coordinate system using reference points and specialized software such as Autodesk ReCap, Faro Scene, or Leica Cyclone.
4. Data Processing
Once scanning is complete, the point cloud data is processed and cleaned. Raw scans often include unwanted information such as moving people, temporary equipment, or scanning noise, which are removed to improve clarity.
5. BIM Modeling
After processing, the point cloud is imported into BIM software such as Autodesk Revit. Modelers create architectural, structural, and MEP elements directly from the scanned data.
6. Quality Assurance
The BIM model is checked against the point cloud to verify accuracy, alignment, and completeness. Teams use tools like Revit section views and Navisworks to review discrepancies.
7. Delivery and Handover
Typical deliverables include Revit models (RVT), IFC files, DWG drawings, registered point clouds, and 2D documentation.
8. Post-Project Review
The team evaluates project outcomes, gathers stakeholder feedback, and documents lessons learned for future improvements.
