Free Download Blog
BIM Level of Development (LOD) Guide: 100 to 500 Explained
Level of Development (LOD) defines how BIM elements evolve across different stages of a project in terms of geometry and data reliability.
It helps project teams clearly understand what information is available at each stage and how it can be used for design, coordination, construction, and facility management.
This guide is designed to help professionals understand the practical application of LOD 100 to 500 and how it supports better decision-making throughout the project lifecycle.
Explore More BIM Resources
Frequently Asked Questions
LOD defines the level of detail and reliability of information in a BIM model at different stages.
LOD levels include 100, 200, 300, 350, 400, and 500.
LOD 100 represents conceptual design with basic massing and approximate information.
LOD 200 includes approximate geometry, size, and location of elements.
LOD 300 provides accurate geometry that can be used for coordination and documentation.
LOD 350 includes connections and interactions between different building systems.
LOD 400 includes fabrication and installation level details.
LOD 500 represents as-built conditions used for operations and facility management.
LOD helps define clear expectations for model development and data usage.
LOD provides accurate information that supports clash detection and coordination.
LOD includes both graphical detail and information reliability.
LOD is defined by project stakeholders, BIM managers, or contract requirements.
LOD helps contractors understand installation requirements and sequencing.
Yes, unclear LOD can lead to errors, rework, and delays.
It depends on project stage, scope, and intended use of the model.