In the 1980s the City of Santa Ana experienced a population growth of approximately 50 percent, from 200,000 residents to nearly 300,000 residents. The 1990 census shows the population has an ethnic breakdown of 65.2% Hispanic; 23.1% Caucasian; 9.1% Asian; 2.9% African American; and 0.3% other. This local growth has resulted in overparking on many residential streets due to commercial developments, inadequate on-site parking, and overcrowding in numerous dwelling units. By implementing permit parking restrictions on streets, the number of parked cars and crime rates have been reduced dramatically. Also, pedestrian and vehicular safety have been enhanced along with aesthetics. Our program is unique in its approach, goals, and implementation. It is used to combat crime and overcrowding. It is not for revenue generation. Our permit parking program is very popular and well-received by both the public and the City Council. This paper describes the program, and discusses what we have learned by using permit parking to enhance livability in Santa Ana. It also considers whether to use distinct districts or a citywide approach.