LAPD Hooper Heliport

LAPD Hooper Heliport is a city-owned private-use heliport located one nautical mile (2 km) northeast of the central business district of Los Angeles, in Los Angeles County, California, United States.
History.
Hooper Heliport is located on the roof of the C. Erwin Piper Technical Center, the world's largest rooftop airport. It is centrally located between Los Angeles Union Station, Chinatown, and Downtown. It is home to the Los Angeles Police Department's Air Support Division which is the largest metropolitan police aviation unit in the U.S. with 17 helicopters.
The Piper Technical Center is also used as a parking lot for some of the LAPD's motor pool including marked and un-marked units, vans, buses, motorcycles, and the V-100 SWAT armored cars.
Hooper Heliport served as home base for the fictional police helicopter "Blue Thunder" in the 1983 motion picture of the same name, while construction of the heliport was still being completed.