This is a feature that has been around for a few years and Google has been delivering 3D visualizations far better than the old SketchUp user-made blocks placed in Google Earth;
As for your question, As far as I know, Google does not provide data for this geometry, but there are a few ways to capture it. That way is to use some 3d scanning software that uses photos. Thus, you will have to save several views of that area and hope that the software correctly performs the processing.