Sweet Home 3D is a free interior design application ... Each change in the 2D plan is simultaneously updated in the 3D view, to show you a realistic rendering of your layout.

Sweet Home 3D is a free interior design application ... Each change in the 2D plan is simultaneously updated in the 3D view, to show you a realistic rendering of your layout.

Generally this brings to mind massive 3D printers that are carted to construction sites and assemble entire homes on the spot ... plumbing, etc. all installed in the factory, with on-site work ...