This 3d presentation is completely monochrome! Very clean, simple yet beautifully presented. When carefully examined, you can tell that they had at least 3 different files for the model. One, very bare with just walls - two, with floors and ceilings - and three, with all the windows and openings in place. Then each file was obviously rendered using the same camera paths and patched together using a Windows Movie Maker. Software used to animate the model was Artlantis Studio 1.0 and the modeling software which was used was ArchiCAD! Great work to youtube's MKripp.