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When a basic 3D Revit® model is required, then during our survey we record the slab-to-slab elevations, as well as window/sill heights, door heights, plus exterior major architectural details including heights. We combine this information with interior and perimeter digital photos to create the model from the preliminary AutoCAD®drawings.
These models are typically described as Level of Detail (LOD) 200-300.
With all our projects, we take digital photos around the perimeter, as well as a few interior shots. However, when preparing 3D Revit models, we take many more interior and exterior photos. In combination with our laser-measured as-built drawings, the photos help our expert Revit team to create lifelike Revit models, without the added expense (and time) of having a 3D laser survey done.