Last spring, the American Institute of Architects announced the winners of the 2009 AIA Housing and HUD Awards. The awards recognized a mix of dwellings, from frugal desert encampments to urban infill projects. Sustainability, no longer auxiliary, was a consideration in every building selected. Many of the projects required architects to perform balancing acts, negotiating issues such as historical context, the environment, and social concerns. Below, we take a look at each of the winners.