About Costeaux French Bakery

Costeaux French Bakery has been part of Sonoma County life since 1923, growing from a small Healdsburg bakery into a beloved institution known for hand-crafted sourdough, French breads, and pastry. Today the Seppi family carries that century-old tradition forward across the flagship Healdsburg bakery and cafe and a Santa Rosa location.

Beyond the bread case, Costeaux is a full cafe serving breakfast and lunch, a pastry and cake kitchen for weddings and celebrations, and a catering team for private events — all built on the same old-world craft the bakery was founded on.