I can provide basic 3D models for interiors (not with renders). I work with Archicad and Artlantis. For example: You don't know how a plan (2d model) will look like in 3d or you just can't imagine the realistic sizes, heights ,furniture placements, capacity etc.? I can make it clear for you by showing you a 3d picture with basic materials and colors, so you can proceed for a more detailed interiors and realistic renderings (if they are needed).