BIM LOD. Level of Development — The Framework for Defining Model Reliability at Every Project Stage.
What Is LOD?. Level of Development describes how much geometric detail and reliable information a model element contains at a given stage — it tells the team what they can, and can't, rely on the model for..
LOD Across the Project Lifecycle. Target LOD rises deliberately as a project moves from concept to a verified, as-built record..
Six LOD Levels. Each level defines a specific, verifiable degree of geometric and non-graphic reliability..
Where LOD Creates the Most Impact. Illustrative impact of well-specified LOD across key project outcomes (relative scale, 1–5)..
LOD in Action: Progressing a Model. The same element matures through defined levels as design decisions firm up..
Specifying the Right LOD. Start with what each decision needs — then set the LOD that delivers it, element by element..