You may seen this project on the babylonjs.com homepage : Bordeaux Hyperion
This 3D realtime scene is part of a commercial webpage where you can know a lot about your future appartment buying.
This is not a personnal project, but a corporate one, by Axeon 360.
Technically talking, this scene asks for medium-high hardware, due to the fact that we have a lot of drawcalls with floors cutting (and yep, could be a lot greater using clipPlanes, 'will use it next time).
In case you take a look on the code, you may see a tool we use to ease a lot designers’ workflow : it will be open-source released during 2019… teasing spotted! 
