Liliana Castellanos 1414 N Main St, Walnut Creek, CA94596 This locally owned and operated boutique, situated on tree-lined Main Street in central Walnut Creek, is the…More one-and-only Liliana Castellanos store in North America. It is the exclusive place to find women's clothing and accessories from the South American designer. Other items available include women's jewelry, hats, scarves, shoes, bags and more. Alterations and tailoring is available but not in-store. More information and news about the designer and her clothing are available on the listed Web site.