LOD 300 and LOD 350 represent the Detailed Design stages in BIM, where building elements are modeled with precise geometry, accurate dimensions, and coordinated interfaces between architectural, structural, and MEP systems. These levels ensure the model is reliable for technical design, clash detection, and construction documentation.
LOD 300 – Detailed & Accurate Geometry
At LOD 300, all elements are modeled with
exact size, shape, quantity, and location.
Key Features
- Precise dimensions for architectural, structural, and MEP components.
- Accurate placement of walls, windows, doors, slabs, beams, ducts, pipes, and equipment.
- Coordination between disciplines begins to solidify.
- Quantities derived from the model are accurate enough for detailed cost estimation.
- Model supports creation of construction drawings.
Purpose of LOD 200
LOD 100 helps stakeholders:
- Evaluate design feasibility and refine space planning.
- Improve cost estimation accuracy compared to LOD 100.
- Coordinate primary structural and MEP layouts.
- Identify early design issues before detailed development.
- Present schematic-level visuals to clients and stakeholders.
OUTCOME
At the LOD 200 stage, the BIM model provides a clearly defined schematic layout of the project with enough data to support decision-making, approximate costing, and early coordination, setting the foundation for detailed design at LOD 300.