A $1.6 billion mixed-use project being developed by the San Francisco Giants landed its first tenant, Anchor Brewing Co. The brewery will occupy 212,000 sf of an existing warehouse building that will be renovated. It is part of the 27-acre Mission Rock development along the waterfront that could break ground in late 2014. The project includes retail and office areas, a museum, parks, and 1,500 apartments.Anchor Brewing’s site will include a brewpub. The area, near the Giants’ AT&T Park, is in the midst of transformation from a former RV park, railway yard, and the mayor’s “favorite driving range” to a high-tech hub and new apartment district.