After eight years leading large public projects at Hargreaves Associates, Wilson broke off to start his own firm in 2007, at age 36. He works on projects at every scale at his studio in San Francisco, from the smallest (a five-foot-wide public stairway in Malibu that threads down to the beach) to the largest (a proposed urban plan for the neglected waterfront in Hunter’s Point and Candlestick Point, San Francisco). "I find it all fascinating," says Wilson. "There’s no scale limit to urbanism."
Unusual for a landscape architect, Wilson regards his projects as problems that can be solved through technological means, both high-tech and low. "Clients describe their needs, and I imagine an invention specific to them," he explains. "Landscape architects often work with the same five materials over and over. I’m interested in a radical expansion of that palette. I’m always looking for new applications completely outside the landscape realm."
To that end, when the San Francisco Museum of Craft+Design asked him to create an installation for the entry to an exhibition, he employed solar-powered phosphorus-coated wires, a material more frequently used in the movie and special-effects industry, to create a glowing terrain over the existing garden that lured visitors from the sidewalk. And for a competition to design an interim use for the 70-foot-diameter hole in Chicago where a Santiago Calatrava skyscraper will eventually be built, Wilson devised an "urban Old Faithful," using basic plumbing hardware to fashion a machine that lofts rings of steam into the sky. "When you approach a design problem with a wide palette," says Wilson, "you get radical new possibilities."