'Peoples’ imaginations run wild with container houses,' notes Douglas Burnham, a principal at San Francisco-based firm Envelope A+D, which created Proxy, a two-block cultural development made of shipping containers in San Francisco’s Hayes Valley. You should choose an architect well versed in container work. It has walls, windows, doors, and a roof, and it requires the same level of design and engineering as any other building. While a container home’s building blocks-corrugated metal containers used for long haul shipping-are novel, it is still a piece of architecture.