As Sunset’s headquarters were relocating to Oakland in late 2015, a group of designers were a few miles away planning the magazine’s 2016 Idea House. Perched in the Claremont Hills bordering Oakland and Berkeley, the home was conceived as a tribute to the Bay Area—its architecture, its quirky character, its spirit of innovation. Facilitated by DFI Properties and Keith Kolker of Landmark Development, architect Robert Nebolon created a five-level, 3,600-square-foot cantilevered home clad in James Hardie siding. To warm up the modern shell, interior designer Lauren Geremia and her team, Emily Ord and Erin O’Brien, mixed ATGStores.com furnishings and paint with vintage items and statement-making pieces by Western artists. The result is a home that feels like a retreat—and offers design ideas around every corner.