Considering the immense popularity of recycled shipping container homes and buildings, extending the contained living trend to condos is the next logical step. A Japanese designer is planning a Metal Shutter House for New York’s West Chelsea district. Each of the nine duplexes has a roll up wall to open up the unit entirely to the sounds of the city. If that’s too much closeness, the units will have glass walls that can remain in place. The back wall opens as well on to a terrace.