BIM LOD Services
Expert BIM Modeling at All Levels of Development - LOD 100 to LOD 500
Professional BIM LOD Services
Level of Development (LOD) defines the degree of completeness and reliability of building information model elements at different project phases. Our BIM LOD services provide expert modeling at appropriate detail levels from conceptual design (LOD 100) through as-built documentation (LOD 500). We follow the AIA E202 LOD Specification and BIMForum LOD standards to ensure model elements contain the right amount of geometric detail, dimensional accuracy, and non-graphic information for each project phase.
Understanding LOD
LOD is not the same as Level of Detail (visual appearance). Instead, LOD describes the reliability and completeness of information within model elements. Higher LOD numbers indicate greater information maturity, geometric precision, and data richness. LOD requirements are typically specified in BIM Execution Plans and vary by project phase, element type, and intended use. Proper LOD specification ensures stakeholders can trust model information for decision-making, coordination, and construction.
Our LOD Modeling Capabilities
- LOD Assessment: Evaluate existing models to determine current LOD and identify gaps
- LOD Planning: Define appropriate LOD requirements for each project phase and element type
- Progressive Modeling: Develop models from conceptual LOD through construction and as-built LOD
- LOD Verification: Validate that model elements meet specified LOD requirements
- Information Enrichment: Add data, properties, and specifications to advance element LOD
- Documentation: Create LOD matrices and element authorization tables
Why LOD Matters
Clear LOD specification prevents misunderstandings about model reliability and appropriate uses. When stakeholders understand element LOD, they can make informed decisions about design, coordination, cost estimation, and construction planning. LOD also defines contractual responsibilities - who models what, when, and to what level of detail. Projects with well-defined LOD requirements experience fewer coordination issues, more accurate cost estimates, and smoother construction execution.
Standards & Compliance
We model according to AIA E202 Building Information Modeling Protocol, BIMForum LOD Specification, and project-specific LOD requirements. Our team understands LOD progression through project phases and ensures models support intended uses including design visualization, clash detection, quantity takeoff, fabrication, and facility management.
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Level of Development Breakdown
Comprehensive modeling services across all LOD levels
LOD 100 - Conceptual Design
Model elements are represented graphically with approximate size, shape, location, and orientation. Information is conceptual and may be derived from other project data.
- Massing models and volumetric studies
- Approximate quantities and area calculations
- Conceptual cost estimates and feasibility analysis
- Site context and building orientation studies
LOD 200 - Schematic Design
Model elements are represented as generic systems with approximate quantities, size, shape, location, and orientation. Non-graphic information may be attached.
- Generic assemblies and system placeholders
- Approximate dimensions and spatial relationships
- Preliminary cost estimates and system sizing
- Basic coordination and clash detection
LOD 300 - Design Development
Model elements are represented as specific assemblies with accurate quantity, size, shape, location, and orientation. Non-graphic information includes performance specifications.
- Specific systems with accurate dimensions
- Detailed coordination and clash detection
- Accurate quantity takeoffs and cost estimates
- Material specifications and performance data
LOD 350 - Construction Documentation
Model elements include specific assemblies with complete fabrication, assembly, and detailing information. Elements include interfaces with other building systems.
- Detailed connections and interfaces
- Coordination with adjacent systems
- Shop drawing preparation support
- Installation and assembly information
LOD 400 - Fabrication & Assembly
Model elements are modeled as specific assemblies with complete fabrication, assembly, and detailing information including size, shape, location, quantity, and orientation.
- Fabrication-ready models with exact details
- Complete assembly and installation information
- Manufacturer-specific components
- Shop drawing and fabrication support
LOD 500 - As-Built & Operations
Model elements are field-verified representations of size, shape, location, quantity, and orientation. Non-graphic information includes actual and accurate data for facility management.
- Field-verified as-built conditions
- Complete asset information for FM systems
- Maintenance schedules and warranty data
- Operations and maintenance documentation
Get BIM Models at the Right LOD
Ensure your BIM models contain the appropriate level of detail and information for each project phase. Contact us today to discuss your LOD requirements and modeling needs.
Discuss Your LOD Needs