City Hall of Los Angeles (Floors) - Wikipedia, the free encyclopedia City Hall of Los Angeles is located at 200 North Spring Street in Downtown Los Angeles. The current building was completed in 1998. Before that, it was known as Police Headquarters because that was where all the action was for the men in blue. When it first opened its doors, City Hall had 69 rooms! That's right, 69! Today, there are only 27 rooms on three underground levels. But they were able to eliminate some spaces by combining them with other offices or by turning them into storage rooms. The building was designed by architect John C. Austin and constructed by Parson & Lee Construction Company. It replaced an earlier city hall built in 1875-1877 on the same site. The old city hall was a Gothic Revival structure that used redwood as its primary material. It had over 70,000 board feet of timber on the property when it was destroyed by fire in 1895. After the new building was completed in 1898, it was considered revolutionary for its time. There were no more than eight other office buildings in downtown Los Angeles at that time.