Affectionately called the “Green Dragon” by its architects, the new clubhouse for San Francisco’s Boeddeker Park is clad in scale-like zinc panels and has a rakish form: a long, low structure, the building rises to a 30-foot-high “head” on one end and a tail-like roof monitor on the other. The playful 4,000-square-foot facility, designed by local firm WRNS Studio, replaces a sunken, bunker-like clubhouse and is central to the park’s welcoming new approach. “There’s been a threshold moment where we’ve moved from defensible architecture to open and transparent spaces,” says design partner Bryan Shiles.