55 Ninth Street Apartments

55 Ninth Street lies within the transitioning mid-market neighborhood of San Francisco. This market-rate apartment, aimed at the young, trend-setting, tech worker market, is located across the street from the new Twitter headquarters. Two courtyards are the focus of the landscape design, which spotlights recycled materials in many elements of the site. Chunks of recycled glass fill a gabion wall, with an opening that creates a gateway to the street-level courtyard. Roof water is collected in a cistern and reused for irrigation, effectively dealing with 100 percent of the site’s stormwater. Planting is contemporary in design, featuring stripes of black and white rock alternating with emphatic species, creating a bold, modern feel.