In 2015, Zahner provided the San Francisco Premium Outlets with a perforated metal artwall, installed in an outdoor area of the public mall development. Gates + Associates provided the landscape design for the entire development's expansion, adding 185,000 SF to the project. This addition makes the project the largest outlet mall in the state of California. Gates + Associates worked with Zahner's ImageWall team to develop the artwall, which was shipped and installed by the architect's contractor. The design is rolling landscape which depicts the surrounding area's vineyards. Manufactured in Dirty Penny copper, the patina will continue to weather and grow in its depth over time. Since the copper patina is exposed to the outdoors, the oxidization will eventually turn dark brown, and then after a few decades, will become green.