Kenneth Hahn Hall of Administration (abbreviated HOA), formerly the Los Angeles County Hall of Administration, completed 1960, is the seat of the government of the County of Los Angeles, California, and houses the Los Angeles County Board of Supervisors, meeting chambers, and the offices of several County departments. It is located in the Civic Center district of downtown Los Angeles, encompassing a city block bounded by Grand, Temple, Hill, and Grand Park. On an average workday, 2,700 civil servants occupy the building. From Wikipedia
