Ghirardelli Square adaptive-reuse and chocolate legacy

Ghirardelli Square, redeveloped from the 1890s Ghirardelli chocolate factory complex beginning in the 1960s, is often cited as an early and influential example of large-scale adaptive reuse in the United States. The square preserves factory buildings while housing shops, restaurants, and public spaces, and the Ghirardelli Chocolate Company maintains a retail presence there. The site's transformation and continuing association with chocolate production have made it a persistent element of San Francisco commercial and culinary lore. The complex is listed on registers of historic places and appears in numerous preservation case studies.