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LOD in BIM Explained: LOD 100, 200, 300, 350, 400 and 500 Without the Confusion

Level of Development is not the same as Level of Detail. This guide explains LOD 100 through 500 as industry usage from AIA and BIMForum documents, what each level means in models, and how to specify LOD without treating it as a global law.

Ali Noor · Aug 27, 2026

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