Level of Development (LOD)

Level of Development (LOD) refers to the degree of detail and accuracy in a building's digital model at different stages of a design or construction project. It indicates how complete and precise the information is, ranging from initial concept (low LOD) to detailed, construction-ready models (high LOD). This helps stakeholders understand the model’s reliability for tasks like planning, estimating, and construction, ensuring everyone is on the same page regarding the project's progress and readiness. Essentially, LOD provides a clear communication framework about how developed and trustworthy the digital model is at any given point.