Starfleet's command centre in San Francisco on Earth, next to Starfleet Academy.
Starfleet Headquarters is the central command of Starfleet, located in San Francisco on Earth, close to the Golden Gate Bridge. It houses the admirals who direct the fleet and the offices of the Starfleet Command, and it stands at the heart of the Federation's military and exploration efforts.
The site is closely associated with the Federation's capital, and the headquarters sit alongside the Starfleet Academy. Its location in the city of San Francisco has made it a symbol of the Federation, and its grounds have been seen many times in the franchise. It is a place where major decisions about the fleet are made.
Starfleet Headquarters features in many stories, including Star Trek IV: The Voyage Home and in the Next Generation, where Picard visits the admirals. During the Dominion War, the Breen attack it, which causes great damage. It also appears in Picard and Discovery, and remains the place where the leaders of Starfleet decide the Federation's future.