A Complete Guide to Understanding LOD in BIM Projects
LOD 100 to 500 explained in plain language, with guidance on choosing the right level for your project.
The Zenith Visions Team
24 September, 2026
Level of Development (LOD) describes how complete and reliable model elements are at a given stage.
The LOD scale
- LOD 100 — conceptual
- LOD 200 — approximate geometry
- LOD 300 — precise geometry
- LOD 350 — interfaces with other systems
- LOD 400 — fabrication detail
- LOD 500 — field-verified
Choosing the right LOD
Higher LOD means more effort. Match the LOD to how the model will actually be used.
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A Complete Guide to Understanding LOD in BIM Projects
LOD 100 to 500 explained in plain language, with guidance on choosing the right level for your project.
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