French Eclecticism in Cobble Hill, Brooklyn

French designer C. S. Valentin’s home base is in Cobble Hill, Brooklyn, but he splits his time among clients in New York, Mexico, and Los Angeles. His NYC outpost—a rental in a prewar building—is more like a test kitchen than a full-time residence. Valentin calls it a “mid-mod wunderkammer” (cabinet of curiosities). “It’s a collage…