BIM Modeling – LOD 100 to LOD 500

01 — The Challenge

One of the biggest challenges in BIM delivery is developing a model with the right level of information at the right project stage.

Common challenges include:

• Unclear LOD requirements

• Over-modeling during early design stages

• Insufficient model detail during construction

• Inconsistent BIM information across disciplines

• Difficulty transitioning models between project phases

• Design changes requiring significant model rework

• Lack of standardized modeling practices

• Coordination issues caused by incomplete or inaccurate information

• Difficulty developing reliable as-built models

• Different expectations between clients, consultants, contractors, and BIM teams

VDEC uses a structured LOD-based approach to ensure that every BIM model is developed according to its intended purpose and project stage.

02 — VDEC Solution

We develop BIM models from LOD 100 to LOD 500, with the model progressively evolving as the project moves through planning, design, coordination, construction, and handover.

LOD 100 — Conceptual BIM

Early-stage representation focused on overall building massing, approximate areas, volumes, and conceptual information.

Typical Use:

• Concept Design

• Feasibility Studies

• Area Planning

• Early Cost Planning

• Project Visualization

LOD 200 — Approximate Design

Elements are represented with approximate geometry, location, quantity, size, and orientation.

Typical Use:

• Schematic Design

• Design Development

• Preliminary Coordination

• Early Quantity Assessment

LOD 300 — Detailed Design

Elements are modeled with sufficient graphical detail, size, location, orientation, and information to support design documentation and coordination.

Typical Use:

• Detailed Design

• Design Coordination

• Construction Documentation

• Quantity Take-Off

• Multidisciplinary BIM Coordination

LOD 350 — Construction Coordination

Elements include additional detail necessary to represent interfaces and coordination between building systems and other components.

Typical Use:

• Construction Coordination

• Clash Detection

• Shop Drawing Development

• Constructability Review

• Installation Planning

LOD 400 — Fabrication & Installation

Elements are developed with detailed geometry and information suitable for fabrication, assembly, and installation.

Typical Use:

• Fabrication

• Shop Drawings

• Prefabrication

• Installation Planning

• Detailed Construction

LOD 500 — As-Built / Verified BIM

The model represents the actual installed condition, incorporating verified information from construction and site records.

Typical Use:

• As-Built Documentation

• Facility Handover

• Asset Management

• Facility Operations

• Future Renovation & Maintenance

Note: LOD is not simply "more detail." It defines the level of development and reliability of model elements for their intended project use. VDEC aligns LOD requirements with the project's BIM Execution Plan and information requirements.

03 — Deliverables

LOD 100–200

• Conceptual BIM Models

• Massing Models

• Preliminary Architectural Models

• Preliminary Structural Models

• Preliminary MEPF Models

• Area & Volume Information

• Design Development Models

LOD 300

• Detailed Architectural BIM

• Structural BIM

• MEPF BIM

• Coordinated Design Models

• Construction Documentation

• Quantities & Schedules

• Design Coordination Outputs

LOD 350

• Multidisciplinary Coordination Models

• Clash Detection Models

• Constructability Models

• Detailed Shop Drawing Support

• Interface Coordination

• Coordination Reports

LOD 400

• Fabrication-Level BIM Models

• Detailed MEPF Models

• Detailed Structural / Steel Models

• Fabrication & Installation Information

• Shop Drawings

• Prefabrication Support

LOD 500

• Verified As-Built BIM Models

• Existing / Installed Condition Models

• Asset Information

• Equipment & System Data

• As-Built Documentation

• Handover Information

• Facility Management Support

04 — Our Process

01. Define Project Requirements

We review the project scope, BIM Execution Plan, information requirements, intended model uses, project standards, and required LOD for each stage.

02. Establish LOD Strategy

We define the appropriate development level for Architecture, Structure, HVAC, Electrical, Plumbing, Fire Protection, and other disciplines based on project requirements.

03. BIM Model Development

Our BIM engineers develop models according to the agreed LOD, ensuring appropriate geometry, information, parameters, and element representation.

04. Quality Control

Our structured QC process checks model accuracy, geometry, information, naming standards, parameters, coordination, and compliance with project requirements.

05. Coordination & Development

As the project progresses, models are updated from one development stage to the next while incorporating approved design changes and coordination requirements.

06. Construction & Installation Support

For LOD 350–400 requirements, we support clash detection, constructability reviews, shop drawings, fabrication information, and installation planning.

07. As-Built & Handover

For LOD 500, we incorporate verified site information and approved construction records to create a reliable digital representation of the completed asset.

05 — Software & Technology

Our LOD-based BIM teams work with industry-standard AEC and BIM technologies, including:

Autodesk Revit | AutoCAD | Navisworks | Autodesk Construction Cloud (ACC) | BIM 360

We also work with client-specific BIM Execution Plans, templates, content libraries, naming standards, Common Data Environments, and information requirements.

06 — Benefits

Right Information at the Right Stage

Develop BIM models according to the project's actual requirements instead of unnecessary over-modeling.

Reduced Rework

A structured development strategy makes it easier to progressively enhance the model as the project evolves.

Better Coordination

Use appropriate model detail to support multidisciplinary coordination and clash detection.

Improved Cost & Quantity Planning

Higher-development models can provide more reliable quantities and project information.

Construction-Ready Information

LOD 350–400 models can support construction coordination, shop drawings, fabrication, and installation planning.

Reliable As-Built Data

LOD 500 models provide a structured digital record of verified installed conditions.

Better Project Communication

A clearly defined LOD strategy creates common expectations between owners, designers, contractors, and BIM teams.

Scalable BIM Delivery

Support the entire project lifecycle, from concept and design to construction and handover.

07 — Example Project

LOD 300–400 BIM Development for a Large Commercial Development

Project Type: Commercial / Mixed-Use Development
Scope: Architectural + Structural + MEPF BIM
LOD: 300 → 350 → 400
Services: BIM Modeling + Coordination + Shop Drawing Support

VDEC Approach

VDEC developed the project's BIM models progressively as design information became available.

The initial models were developed to LOD 300 for detailed design and multidisciplinary coordination. As the project moved toward construction, selected elements were developed to LOD 350to support interface coordination and constructability.

For construction and installation requirements, specific systems were further developed toward LOD 400, providing the additional detail required for shop drawings, fabrication, and installation planning.

Outcome

The progressive BIM development approach provided the project team with the appropriate level of information at each stage, improving coordination, reducing unnecessary modeling effort, and supporting the transition from design to construction.

08 — From Concept to Construction. From Construction to Asset.

BIM should evolve with your project.

VDEC provides LOD 100–500 BIM Modeling Services that help project teams develop the right combination of geometry, information, accuracy, and detail at every stage of the asset lifecycle.