In coming years, San Francisco's Mission Bay neighborhood will look vastly different than it does today.

Once made up of industrial warehouses and shipyards, the 303-acre waterfront area started redeveloping in the late 1990s — adding thousands of new housing units, public plazas, a state-of-the-art medical center, and 580,000 square feet of office space. And in 2019, the Chase Center, an 18,000-seat arena, will open along with a nearby new subway stop and 100,000 square feet of retail space. It's a long-term redevelopment project for the city, and is expected to last at least two more decades.

Mission Bay is not the only megaproject set to transform San Francisco, however.

Here is a look at some of the most substantial projects to come to California's tech hub.