Top 10 Green Buildings, 2011

Step Up on 5th, Santa Monica, Calif.
Brooks + Scarpa
A mixed-use project with 46 studio apartments that provide affordable housing and social services for the homeless and mentally disabled of Santa Monica, Step Up shows that being green is about more than just the environment. The density of the project exceeds the average population density in Manhattan by more than 10%, and the building itself is nearly 50% more efficient than a comparable conventional structure.

• The Eco-Utopian Visions of Architect Vincent Callebaut