What could become possibly the slimmest fully functional house in existence is going to be constructed in Warsaw, Poland, in a space where its widest edge will be four feet, and its thinnest just 28.3 inches, taking up a total of just 14.5 meters—a bit less than fifty feet.

The space.

The "Keret House" will be built predominantly using a steel frame, plywood, and styrofoam.

The house will be mostly a workspace, but with a bed and a studio for guests.

Accessing the house is done via a remote controlled stairway, that goes completely flat when not in use.