651 Gateway Boulevard is owned and managed by Boston Properties. Located on the highway 101 corridor in South San Francisco, the building, completed in 1986, includes a 16-story office tower with approximately 279,532 square feet of Class A office space; grade-level and structured parking are also provided on site. The vertical transportation throughout the facility is provided by four passenger elevators and one convertible passenger/freight elevator. The Gateway Center is near Cal Train and has connection service to BART for commuter access to the building/campus. Onsite parking lots around the building contain spaces for 1,216 cars, and the structured garage contains spaces for 1,800 cars. The on-site security staff patrols the parking lots throughout business hours. Paving is typically asphalt and sidewalks are concrete, with granite pavers at the building entrance plaza. Parking at a ratio of 3.3 spaces/1,000 of rentable square feet, or 2,963 spaces are available for tenants' employees and visitors. Exterior lighting is high-pressure sodium for the parking areas and metal halide for the walkways. There are 16 handicap accessible parking stalls directly adjacent to the building. This building is close to downtown San Francisco and offers a free shuttle service to the Airport.