Pinterest is eyeing a new headquarters that is already full of tenants

Pinterest, the San Francisco darling of crafters and do-it-yourself enthusiasts, has signed a deal to take over a four-story brick warehouse in the heart of San Francisco’s Showplace Square Design District. There’s only one problem: The building is already full. Just as showroom businesses are bouncing back from the recession, dozens of tenants in the San Francisco Design Center building at 2 Henry Adams St. face likely eviction if the landlord is successful in obtaining the approvals needed to convert the 311,000-square-foot building into Pinterest’s headquarters.