The homes in the competition cannot have a footprint over 800 square feet. Working with limited space, many designers focused on modularity and space-saving tricks. The Team Arizona house seen here is built around four segments, which are attached together. More modules can be added as the homeowner's space needs grow.
October 10, 2009 8:27 AM PDT
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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