Description
This case study showcases the successful conversion of 2D CAD drawings into a clash-free BIM model for a premium residential estate in the Netherlands. The project involved complex roof geometries, a detached pavilion, dormers, and chimneys—requiring precision and advanced coordination.
Our goal was to provide the client with a fully coordinated Architectural and Structural BIM model (LOD 300) along with IFC files, 2D plans, and sheet exports. These deliverables were aimed at enabling tender documentation, cross-discipline coordination, and readiness for upcoming MEP and interior modeling phases.
Location:
Utrecht, Netherlands
Square Feet:
11085 sq ft
Status:
Completed
Challenges
- Complex intersecting roof geometries and dormers
- Separate pavilion integration with the main structure
- Incomplete details in 2D CAD for chimneys and openings
- Need for clean IFC exports with no post-editing
- Coordinating a multi-building layout with precision
Solution
- Custom parametric Revit families for dormers and chimneys
- Created a clash-free LOD 300 model using Revit
- Integrated topography and building footprint accurately
- Generated PDF sheets, IFC files, and clean DWG floor plans
- Used clash detection tools to pre-resolve intersections and structure conflicts
Methodology
- We used a structured, quality-focused process:
- Data Review & Cleanup: Assessed CAD files, clarified gaps with the client, and set up Revit templates.
- BIM Modeling: Built detailed Architectural & Structural models in Revit at LOD 300, focusing on dormers, roofs, pavilion, and elevations.
- Coordination & Clash Detection: Conducted clash checks and resolved issues in roofs, framing, chimneys, and walls.
- Exports: Provided IFC, PDF, and floor plans for use in ArchiCAD, Navisworks, and AutoCAD.
- Quality & Delivery: Verified model integrity and delivered clean IFCs, DWGs, sheets, and visuals.
Deliverables
- BIM Model (LOD 300): Detailed Architectural and Structural model in Revit
- PDF Sheets: Floor plans, elevations, roof layouts, and sections
- DWG Exports: Clean 2D floor plans extracted from the BIM model
- IFC Files: For clash detection and coordination with consultants
- Clash Report: Summary of resolved issues in roofs, chimneys, and pavilion
Conclusion
The Bellevue Dreef project is a perfect example of how strategic BIM implementation can elevate a CAD-based residential design to a high-fidelity, coordination-ready BIM model. Our structured approach ensured accurate geometry, zero clashes, and multi-format deliverables—empowering the client for the next project phase including MEP and interiors.
