The Charles David Keeling apartments, a new dorm at UCSD’s Revelle College, recently earned top honors at the American Society of Landscape Architects 2012 design awards. The three-and-a-half-acre outdoor roof space, designed by Spurlock Poirier, was celebrated for integrating beauty and sustainability. Its storm-water collection system creates a series of streams after each rainfall, filtering pollutants that used to drain into the ocean and watering more than 4,000 plants that also provide thermal insulation. Bonus: The building, home to about 510 students, is the first LEED Platinum student housing in the UC system.