These are the ingenious Pre-Fab-Multi-Use-Smart-Modules by Casa-Cubo Brazil.
The 30 sq. ft. micro buildings can serve as homes, guest rooms, pool houses or even tiny retail spaces. Some even come with remarkable “living walls” which is totally something I want in or on my house someday. You can see the “Cube House” in both “house” and “retail” mode down below.
Related: Hivehaus Beehive-Inspired Tiny Modular Home